Sonoma Sage or Creeping Sage is a member of the Lamiaceae (Mint) family native to California. It is found in the Coast Ranges, Peninsular Range, and Sierra foothills. As suggested by its common name, it is a mat-forming subshrub with stems growing no more about 40 centimeters high. The leaves are about 3-6 centimeters long and.5 to 1.5 centimeters wide; they are hairy, the upper surface with minute hairs, and the lower surface so densely covered with recurved hairs that it looks white. The flower clusters are scapose, with clusters 1 to 1.5 centimeter wide. The flowers range in color from white to blue, lilac and purple. It is moderately drought tolerant if given some shade. It is sensitive to heat and direct sun; leaf drop is an indication of too much sun or heat or inadequate moisture. In suitable growing conditions it will forma mat up to 15 ft. wide while remaining about 1 ft. high.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selected for the garden by Kent Calkin, Creative Landscape Consultants, introduced by Cal Flora Nursery.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selected for the garden.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selected for the garden.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selection from the Cuesta Grade in san Luis Obispo Co.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun in coastal sites, and part shade in inland sites. Selected for the garden.

Like many other species of salvia, Hummingbird Sage is a magnet for pollinators such as bees, butterflies, and --- of course --- hummingbirds! This attractive sage is notable for its bold pink and red flowering spikes and pleasant fragrance. It spreads by rhizomes and over time can cover a large area, making it a popular groundcover plant.

Hummingbird Sage grows well in shade and part-shade. In its natural environment, it's often found under trees and large shrubs. It is drought tolerant and can survive without summer irrigation once established. Some supplemental water will keep the foliage green.

Tolerates almost any soil type. Prefers sun or part shade in coastal sites, and part shade in inland sites. From a collection made by Avis Keedy near Lake Cachuma in santa Barbara Co.and introduced by santa Barbara Botanic Garden.

Tolerates almost any soil type. Prefers sun or part shade in coastal sites, and part shade in inland sites. Selected for the garden.

Tolerates almost any soil type. Prefers sun or part shade in coastal sites, and part shade in inland sites. Selected for the garden.

Tolerates almost any soil type. Prefers sun or part shade in coastal sites, and part shade in inland sites. Selected for the garden.

Tolerates almost any soil type. Prefers sun or part shade in coastal sites, and part shade or shade in inland sites. Selected for the garden.

Tolerates almost any soil type. Prefers sun or part shade in coastal sites, and part shade in inland sites. Selected for the garden. Introduced by Las pilitas Nursery.

Horticultural selection from salvia spathacea. This salvia is larger than the straight Hummingbird sage species. 'Powerline Pink' has large spikes of pink flowers and a strong, delightful fragrance. Due to the masses of tall flower spikes, it is a great addition to a bird garden. This plant is special in the garden because it can take both shade and low-water conditions. It is ideal under oaks. Tolerates almost any soil type. Prefers sun or part shade in coastal sites, and part shade in inland sites. Selected for the garden. Introduced by Las pilitas Nursery.

Horticultural selection from salvia spathacea. This unusual variety of Hummingbird sage sports flowers that start out yellow and mature to white as they fully open. They add variety when mixed in with the pink varieties of Hummingbird sage. This small and compact species of sage is loved by hummingbirds and produces beautifully fragrant foliage and flowers. Flowers are held on large spears that emerge from the center of the plant. This sage loves afternoon shade and does well in forest floors and in understory locations. They thrive in clay soil and part shade. The plant spreads by rhizomes and will spread once established. Ideal under oaks.

Tolerates almost any soil type. Prefers sun or part shade in coastal sites, and part shade in inland sites. Selected for the garden (from santa Monica Mountains).

Attractive, hardy, and easy to grow, the Blue Elderberry is also an important food source for California wildlife. In spring, large clusters of cream-colored flowers attract butterflies and bees. The abundant blue berries provide food for birds and other animals. Humans can eat the fruit as long as it's cooked.

This fast-growing shrub is tolerant of a variety of growing conditions, although it does best in sun and well-drained moist, rich soil. It can grow to the size of a small tree, up to 30 feet tall but is easily shaped with pruning.

Sambucus racemosa is a species of elderberry known by the common names red elderberry and Red-berried Elder. It is native to Europe, northern temperate Asia, and North America across Canada and the United States. It grows in riparian environments, woodlands, and other habitats, generally in moist areas. Sambucus racemosa is often a treelike shrub growing 2-6 metres (6. 6-19. 7 ft) tall. The stems are soft with a pithy center. Each individual leaf is composed of 5 to 7 leaflike leaflets, each of which is up to 16 centimeters long, lance-shaped to narrowly oval, and irregularly serrated along the edges. The leaflets have a strong disagreeable odor when crushed. The inflorescence is a vaguely cone-shaped panicle of several cymes of flowers blooming from the ends of stem branches. The flower buds are pink when closed, and the open flowers are white, cream, or yellowish. Each flower has small, recurved petals and a star-shaped axis of five white stamens tipped in yellow anthers. The flowers are fragrant and visited by hummingbirds and butterflies. The fruit is a bright red or sometimes purple drupe containing 3 to 5 seeds. Varieties and subspecies are: Sambucus racemosa subsp. kamtschatica - red elder, native to Northeastern Asia. Sambucus racemosa var. melanocarpa - Rocky Mountain elder, native to the Western United States and Western Canada, including the Rocky Mountains and Sierra Nevada. Sambucus racemosa subsp. pubens - American red elder, native to Eastern North America
Sambucus racemosa subsp. racemosa - European red elder. Sambucus racemosa var. racemosa - Pacific red elderberry. Sambucus racemosa subsp. sibirica - red elder, native to Siberia. Sambucus racemosa subsp. sieboldiana - Japanese red elder

Sambucus racemosa is cultivated as an ornamental plant, for use as a shrub or small tree in traditional and wildlife gardens, and natural landscape design projects. Cultivars in the nursery trade include: Sambucus racemosa 'Black Lace' - burgundy foliage, Sambucus racemosa 'Lemon Lace' - golden yellow and green foliage, Sambucus racemosa 'Lemony Lace' - golden green foliage, with red new growth, Sambucus racemosa 'Sutherland Gold' - green foliage, with bronze new growth. It received the Royal Horticultural Society's Award of Garden Merit.

Black Elderberry (Sambucus melanocarpa) is a native shrub that grows in Northern, Southern and Central California, primarily in the Cascade Range Foothills, the High Cascade Range and High Sierra Nevada regions. It tends to grow in streamsides and edges of meadow, at elevations from 6000-12000 feet.

Official Burnet (Sanguisorba officinalis) is a rare native perennial herb that grows in Northern California, primarily in the North Coast, the Klamath Mountain Range and North Coast Range regions. It tends to grow in wet places, at elevations from 400-4600 feet.

Great Burnet (Sanguisorba officinalis ssp. microcephala) is a native perennial herb that grows in northern California. It tends to grow in wet places, at elevations from - feet.

Sanicula bipinnata is a species of plant in the carrot family known by the common name poison sanicle. It is endemic to California where it is found in low-elevation mountains and foothills, especially in the hills along the coast. It occurs in the California Coastal Range and Sierra Nevada foothills, including Ring Mountain, California. It is recognizable as a relative of the carrots and parsnips with its thin stalk topped with small umbels of yellow or cream flowers. The origin of its poisonous reputation is unknown. Yet despite the name, there are no current records of its toxicity in humans, though it or a related species might be toxic to horses or other stock animals. It was called wene by the Miwok and used to treat venomous bites from snakes, perhaps providing a reason for the common name in English. Though they used other sanicles in the same manner. The Karuk called the plant ikxash and traditionally ate the young leaves as a green, indicating the toxic reputation is undeserved. It is recognizable as a relative of the carrots and parsnips with its thin stalk topped with small umbels of yellow or cream flowers. The origin of its poisonous reputation is unknown. Yet despite the name, there are no current records of its toxicity in humans, though it or a related species might be toxic to horses or other stock animals. It was called wene by the Miwok and used to treat venomous bites from snakes, perhaps providing a reason for the common name in English. Though they used other sanicles in the same manner. The Karuk called the plant ikxash and traditionally ate the young leaves as a green, indicating the toxic reputation is undeserved.

Sanicula graveolens is a species of flowering plant in the parsley family known by the common names northern sanicle and Sierra blacksnakeroot. It is native to western North America from British Columbia to Montana to California, and southern South America, including southern Chile. Its habitat includes mountain slopes, forests, and woodlands on serpentine soils. It is a perennial herb producing a slender, branching stem up to half a meter tall from a taproot, with leaves alternate. The lowest leaves have long stalks and are often attached below ground. The upper leaves are smaller, sparse and often sessile. The leaves are compound, the blades each divided into three deeply lobed, toothed leaflets. The herbage is green to purple-tinged to all purple in color. The inflorescence is made up of one or more heads of bisexual and male-only flowers with tiny, curving, yellow petals. Each head has an array of narrow, toothed bracts at its base. The rounded fruits are a few millimeters long, covered in curving prickles, and borne in small clusters.

Sanicula saxatilis is a rare species of flowering plant in the parsley family known by the common names devil's blacksnakeroot and rock sanicle. It is endemic to the San Francisco Bay Area of California, where it is known only from Mount Diablo and Mount Hamilton. Its habitat is mostly rocky chaparral slopes and talus. Although it is rare, most occurrences are in remote mountainous locales that are relatively safe from disturbance. This is a perennial herb producing a thick stem 10 to 25 centimeters tall from a spherical tuber. The leaves are compound, each divided into three leaflets which are deeply cut into serrated lobes. The herbage is green to purple and sometimes waxy in texture. The inflorescence is made up of one or more heads of bisexual and male-only flowers with tiny, curving, pale salmon pink, yellowish or straw-colored petals. The fruits are a few millimeters wide and covered in bumps and sometimes bristles.

Sanicula tuberosa is a species of flowering plant in the parsley family known by the common name turkey pea. It is native to western North America from Oregon through California to Baja California, where it can be found in many types of habitat, including chaparral, forests, and woodlands. It is variable in appearance. In general, it is a perennial herb producing a slender stem up to 80 centimeters long from a small, spherical tuber no more than 2 centimeters wide. The leaves are compound, divided into usually three leaflets which are smooth or deeply cut into lobes. The herbage is green to purple in color. The inflorescence is made up of one or more heads of bisexual and male-only flowers with tiny, curving, yellow petals. The fruits are 1 or 2 millimeters long and covered in bumpy tubercles.

Greasewood (Sarcobatus vermiculatus) is a native shrub that grows in northern, southern and central California. It is fast growing and long-lived. It grows in an irregular form to a height of 10 feet, with active growth during the summer. Flowers are green and bloom in the spring. Leaves are light-green and deciduous. It tends to grow in alkaline soils, dry lakes and washes, at elevations from 300-6900 feet.

Hardstem bulrush (Schoenoplectus acutus), known as tule in California, is a tall, perennial sedge native to freshwater marshes across North America. It belongs to the Cyperaceae family and thrives in wetland environments, forming dense stands along shorelines. The plant has thick, rounded green stems with long, grass-like leaves that grow in clusters. These dense stands create a natural buffer against wind and water forces, reducing shoreline erosion and helping to stabilize wetland ecosystems.

Hardstem bulrush provides essential habitat for a variety of wildlife. Red-winged blackbirds commonly nest among the stalks, while reptiles and amphibians find shelter within the dense vegetation. Fish use the submerged stems and root systems as nursery areas, benefiting from the protection provided by the plant’s structure. Additionally, Hardstem Bulrush contributes to water filtration by working with symbiotic microbes to sequester excess nutrients, improving water quality in wetland areas.

For Indigenous peoples, tule has been a valuable resource for thousands of years. The plant is traditionally harvested to make sleeping mats, baskets, cordage, and even canoes. It is also used to construct walls for homes and serves as a food source. These cultural practices highlight the ecological and practical significance of this native wetland plant.

Tule (Scirpus acutus var. occidentalis) is a native perennial herb that grows in northern, southern and central California. It tends to grow in marshes, lakes and streambanks, at elevations from 0-8200 feet.

Schoenoplectus americanus (syn. Scirpus americanus) is a species of flowering plant in the sedge family known by the common names chairmaker's bulrush and Olney's three-square bulrush. It is native to the Americas, where it is known from Alaska to Nova Scotia and all the way into southern South America; it is most common along the East and Gulf Coasts of the United States and in parts of the western states. It grows in many types of coastal and inland wetland habitat, as well as sagebrush, desert scrub, chaparral, and plains. This rhizomatous perennial herb easily exceeds two meters in height. The stiff stems are sharply three-angled and usually very concave between the edges. Each plant has three or fewer leaves which are short and narrow. The inflorescence is a small head of several spikelets which may be brown to bright orange, red, purplish, or pale and translucent. They have hairy edges. The fruit is a brown achene. The plant reproduces sexually by seed and colonies spread via vegetative reproduction, sprouting from the rhizomes. This plant, particularly the rhizomes, are a food source of muskrat, nutria, and other animals; it is strongly favored by the snow goose in its wintering grounds.

California Bulrush (Schoenoplectus californicus) is a native perennial herb in the Cyperaceae (Sedge) family that grows in northern, southern and central California. It is also found in Oregon and across the southern states to Florida. It is a definitive species of freshwater or brackish marshes, found in perennially inundated areas such as lakes and ponds, but generally not in flowing water. It tolerates standing water several feet deep where it creates sometimes massive patches. It occurs at elevations from sea level to 4,000 feet, often but not always near the coast. It is an aggressive spreader from its rhizomes and will quickly occupy all suitable area.

Slender Bulrush (Schoenoplectus heterochaetus) is a rare native grass that grows in southern and northern California. It is moderately fast growing and long-lived. It grows in an upright form to a height of 4.9 feet, with active growth during the summer. Flowers are green and bloom in the late summer. Leaves are medium green and deciduous. It tends to grow in marshes and wet places, at elevations from - feet.

Scirpus pungens, or Common Three-Square, is a herbaceous emergent in the United States.

Schoenoplectus tabernaemontani (syn. Scirpus validus) is a species of flowering plant in the sedge family known by the common names softstem bulrush, grey club-rush, and great bulrush. It can be found throughout much of the world; it has been reported from every state in the United States (including Hawaii), and from every province and territory in Canada except Nunavut. It grows in moist and wet habitat, and sometimes in shallow water. Schoenoplectus tabernaemontani is quite variable in appearance, thus explaining the long list of synonyms that have been created over the years. It is a perennial herb producing dense stands of many narrow erect stems reaching 1-3 m (33-100 inches) in height. It grows from a long rhizome system. The leaves are mostly basal and have wide sheaths around the stems. The inflorescence is generally a panicle of spikelets on long, thin branches which spread, arch, or droop. The spikelets vary in color. There is usually along, stiff bract alongside each spikelet or cluster of spikelets.

Common Tule (Scirpus acutus var. acutus) is a native grass that grows in central California. It tends to grow in wet places, at elevations from - feet.

Scrophularia atrata is an uncommon species of flowering plant in the figwort family known by the common names black-flowered figwort and darkflowered figwort. It is endemic to California, where it is known only from a section of the Central Coast Ranges in San Luis Obispo and Santa Barbara Counties. It grows in the calcareous and diatomaceous soils of the coastal canyons at elevations not exceeding 500 meters. There have been 44 observed occurrences of this species, but perhaps 25 of these are historic and may no longer exist. This plant is a perennial herb producing an erect, four-sided stem up to a meter tall or slightly taller. It is somewhat hairy to densely woolly in texture. The leaves have toothed oval blades up to 10 centimeters long which are borne on long petioles. The inflorescence is a wide-open panicle with several hairy, glandular branches bearing flowers. The flower has an urn-shaped corolla with a rounded body and an open mouth at the top which is edged with hoodlike lobes. The corolla is deep, dark red to nearly black in color. The fruit is a capsule just under a centimeter long containing many seeds.

Scrophularia lanceolata is a species of flowering plant in the figwort family known by the common name lanceleaf figwort. It is native to North America, where it is known from western and eastern Canada and much of the United States except for the southeastern quadrant. It grows in many types of habitat, sometimes including disturbed areas such as roadsides. It is a perennial herb producing clusters of erect or spreading stems up to 1. 5 meters long. The oppositely arranged leaves have toothed, triangular or lance-shaped blades up to 14 centimetres (5. 5 in) long which are borne on short petioles. The inflorescence is a wide-open panicle with several hairy, glandular branches bearing flowers. The flower has a spherical or urn-shaped corolla opening at the top into a narrow mouth edged with hoodlike lobes. The corolla is roughly 1-1. 5 centimetres (0. 39-0. 59 in) long and is greenish tinged with brown or dull pink. The wide staminode is generally visible in the mouth of the corolla. The fruit is a capsule just under a centimeter long containing many seeds.

Scrophularia villosa is a species of flowering plant in the figwort family known by the common name Santa Catalina figwort. It is endemic to the Channel Islands of California, where it is known only from Catalina and San Clemente Islands. It grows in coastal sage scrub and chaparral habitat. It is a shrub growing between one and two meters tall.

Scutellaria bolanderi is a species of flowering plant in the mint family known by the common name Sierra skullcap. It is endemic to California, where it is known from the Sierra Nevada and several of the mountain ranges to the south. It is a perennial herb producing an erect stem or cluster of stems 30 centimeters to one meter tall from a system of thin rhizomes. The stems are coated in short, spreading hairs which sometimes have resin glands. The oval or heart-shaped leaves have wavy edges and are oppositely arranged. The lowest leaves are borne on short petioles. Flowers emerge from the leaf axils. Each flower is held in a calyx of sepals with a large ridge or appendage on the upper part. The corolla is between 1 and 2 centimeters long and tubular in shape with a large upper and lower lip. The upper lip is folded into a beaklike protrusion and the lower has three wide lobes. The corolla is white or very pale blue with an area of blue mottling on the lower lip.

Scutellaria galericulata , the common skullcap, marsh skullcap or hooded skullcap, is a hardy perennial herb native to northern areas of the Northern Hemisphere, including Europe, Asia, and almost all of Canada. It is a member of the mint family. The form is upright and is usually 20 to 45 centimeters in height, sometimes reaching up to 80. It is a wetland-loving species and grows along fens and shorelines. The blue flowers are 1 to 2 centimeters long. The flowers are in pairs and are all on the same side of the stem. The flowers do not appear at the top of the stem. The plant is native to many parts of the world and, as such, is known by a variety of names. The Latin galericulata means "hooded", relating to the length of the flower's tube being much longer than the calyx. The variation epilobiifolia translates as leaves like willow-herb, and refers to the slightly serrated long thin leaves which look similar to those of the genus Epilobium.

Scutellaria lateriflora, is a herbaceous plant also known as Blue skullcap, Hoodwort, Virginian skullcap, mad-dog skullcap is a hardy perennial herb native to North America. It is a member of the mint family Lamiaceae, which also includes many other herbs. The form is upright and is usually 0.2 meter to 0.45 meter in height. It is a wetland loving species and grows along fens and shorelines. The blue flowers appear in July to September and are 10-20 millimeter; long. Most of the flowers do not appear at the top of the main stem, but are produced along the length of side branches that grow from the nodes of the main stem. The flowers are grouped in pairs and orientate themselves to one side of the branches. The name of the species, 'lateriflora' means having 'lateral flowers' or 'flowers to the side.' Scutellaria lateriflora is used in herbal medicine as a mild sedative and sleep promoter. Scutellaria, as a genus, has numerous medicinal uses and various species of skullcap are used in the same way. It should be noted though that the traditional uses of Virginian Skullcap should not be confused with those of other Skullcaps as there are 200 different species of Skullcap and they are not all used in the same way. Blue skullcap is often used in the same way as for Common skullcap (S. galericulata), Western skullcap (S. cordifolia), or Southern skullcap all of which are very genetically similar. Blue Skullcap and Common Skullcap are mainly known for their traditional use as an incense and herbal teas.

Salazaria mexicana, commonly known by variants on bladder sage or paperbag bush, is a shrub of the mint family Lamiaceae distinctive for its calyx lobes that develop into small bag- or bladder-like shells around the fruits. Widespread in the southwestern part of North America, it is the only member of its genus. This plant takes the form of a rounded shrub, typically 50-100 centimeter high, sometimes larger. The stems form a spreading rigid pattern, with the tips often becoming spine-like. The leaves are small, 3-15 millimeter long and 2-8 millimeter wide, ovate to elliptic, entire, and with a very short or nonexistent petiole. The 2-lipped flowers develop in pairs facing away from each other; the upper lip is white to light violet and hairy, while the lower lip is 3-lobed and intense dark violet. The calyx starts out as simply a base to the flower, reddish-purple in shade, and then as the flower ages, it expands into its distinctive bag shape, 1-2 centimeter across, the dried flower eventually falling out of the hole in the end.

Scutellaria siphocampyloides is a species of flowering plant in the mint family known by the common name grayleaf skullcap. It is endemic to California, where it is widespread throughout the mountain and coastal regions; it is absent from the deserts and the Central Valley. It can be found in forest and woodland habitat, and a variety of open habitat types. It is a perennial herb producing an erect stem or cluster of stems up to about half a meter tall from a system of thin rhizomes. The stems are coated in short, flattened hairs which sometimes have resin glands. The oval leaves are oppositely arranged. The lowest leaves are borne on short petioles. Flowers emerge from the leaf axils. Each flower is held in a calyx of sepals with a large ridge or appendage on the upper part. The tubular corolla can be up to 3. 5 centimeters long and has a large upper and lower lip. The upper lip is folded into a beaklike protrusion and the lower has three wide lobes. The corolla is pale lavender to deep purple in color, sometimes with white mottling on the lower lip.

Scutellaria tuberosa is a species of flowering plant in the mint family known by the common name Danny's skullcap. It is native to western North America from Oregon through California to Baja California, where it is widespread throughout the mountain and coastal regions; it is absent from the deserts and the Central Valley of California. It can be found in forest and woodland habitat, and a variety of open habitat types, often appearing in areas recently cleared by wildfire. It is a perennial herb producing an erect stem or cluster of stems up to about 25 centimeters tall from a root system with tubers. The stems are coated in short, spreading hairs. The oval leaves are oppositely arranged. The lowest leaves are borne on short petioles. Flowers emerge from the leaf axils. Each flower is held in a calyx of sepals with a large ridge or dome-shaped appendage on the upper part. The tubular corolla is one to two centimeters long and has a large upper and lower lip. The upper lip is folded into a beaklike protrusion and the lower has three wide lobes. The corolla is deep purple-blue, usually with a white patch or mottling on the lower lip.

Sedella pentandra is a species of flowering plant in the stonecrop family known by the common name Mt. Hamilton mock stonecrop. It is endemic to California, where it grows in the Central Coast Ranges and adjacent sections of the Central Valley and coastline. It often grows on sandstone and serpentine soils. This is an annual herb growing no more than 8 centimeters high. It has small succulent leaves each a few millimeters long. The flowers atop the threadlike stems have fleshy sepals and yellowish petals a few millimeters in length.

Sedum divergens, commonly called spreading stonecrop, Cascade stonecrop, and Pacific stonecrop, is a low growing flowering plant of the genus Sedum. It is native to western North America from Alaska to northern California. This plant is common in the lava beds of Northwest British Columbia where it is one of the food plants of the Nisga'a first nation.

Sedum lanceolatum is a species of flowering plant in the stonecrop family known by the common names spearleaf stonecrop and lanceleaf stonecrop. It is native to western North America and occurs in western Canada and the United States. It is distributed from Alaska to Arizona and New Mexico and as far east as South Dakota and Nebraska. It grows in exposed, rocky mountainous habitat at moderate and high elevations, up to 4048 meters in the Rocky Mountains. The plant persisted and evolved on sky islands and nunataks in these ranges during glaciation events during the Pleistocene epoch.

Rose Flowered Stonecrop (Sedum laxum ssp. laxum) is a native perennial herb that grows in Northern California, primarily in the North Coast and Klamath Mountain Range regions. It tends to grow in rocky outcrops, at elevations from 200-6600 feet.

Sierra Stonecrop (Sedum obtusatum ssp. boreale) is a native perennial herb that grows in central and northern California. It tends to grow in rocky outcrops, at elevations from 4600-6600 feet.

Sierra Stonecrop (Sedum obtusatum ssp. obtusatum) is a native perennial herb that grows in central and northern California. It tends to grow in rocky outcrops, at elevations from 3900-12100 feet.

Canyon Creek Stonecrop (Sedum paradisum) is a rare native perennial herb that grows in Northern California, primarily in the Klamath Mountain Range region. It tends to grow in granite outcrops, at elevations from 1000-4600 feet.

Sedum oregonense is a species of flowering plant in the stonecrop family known by the common name cream stonecrop. It is native to the Klamath Ranges of southern Oregon and northern California, where it grows in rocky habitat. It is a succulent plant forming basal rosettes of leaves up to about 4 centimeters long. Smaller leaves occur farther up the stem. The leaves are green in color and waxy in texture. The inflorescence is an erect, wide open array of many flowers. The flowers have yellow petals with red-tinged or white-speckled undersides.

Sedum radiatum is a species of flowering plant in the stonecrop family known by the common name Coast Range stonecrop. It is native to Oregon and California, where it is known from several coastal and inland mountain ranges, including the Klamath Mountains and the Sierra Nevada. It grows in many types of rocky habitat, sometimes on serpentine soils. It is an annual or biennial succulent plant producing several stems with elevated, somewhat basal rosettes of leaves. The leaves are not much more than a centimeter long. They are green or yellowish with green, purple or red veining. The inflorescence is a short, erect array of many densely packed flowers. The flowers have yellow, cream, or white petals which are lance-shaped and one half to 1 centimeter long.

Selaginella bigelovii is a species of spikemoss known by the common names bushy spikemoss and Bigelow's spikemoss. It is native to California and Baja California, where it grows in rocky places in many different habitat types, from the coastline to the mountains to the deserts. This lycophyte forms clumps of spreading upright to erect stems up to 20 centimeters long with a few short lateral branches. The linear or lance-shaped green leaves are up to 4 millimeters long, including the tiny rigid bristles at their tips. They are flattened to the stem or stick out just a little. The strobili borne at the leaf bases are yellow-orange in color.

Selaginella oregana is a species of spikemoss known by the common name Oregon spikemoss. It is native to the Pacific Coast of western North America, where it can be found from British Columbia to northern California. It grows in mossy, shady coastal forests. It is often epiphytic, growing attached to tree branches, its stems hanging in sheets of green, mosslike streamers. Trees commonly occupied by the spikemoss include bigleaf maple (Acer macrophyllum), black cottonwood (Populus trichocarpa), and red alder (Alnus rubra). It also grows on the ground and on rocks in carpetlike mats. This lycophyte has creeping or hanging stems up to about 60 centimeters long, usually with forking branches. They curl as they dry. The stems are radially symmetric, with spirals of lance-shaped leaves each measuring 2 or 3 millimeters in length and tipped with a tiny, rigid bristle. The strobili containing the reproductive structures are up to 6 centimeters long and often occur in pairs.

Selaginella wallacei is a species of spikemoss known by the common name Wallace's spikemoss. It is native to western North America from British Columbia to California to Montana, where it can be found in many types of habitat, including open and shaded areas, and wet to dry environments. This lycophyte is variable in appearance, its form depending on the habitat it grows in. It can be spreading with many narrow branches, or a small, dense mat. The forking stems grow up to about 25 centimeters long, but may remain much shorter in dry conditions. They are lined with linear, lance-shaped, or oblong leaves up to 4 millimeters long including the bristles at the tips. The strobili containing the reproductive structures may be quite long, reaching up to 9 centimeters.

Senecio aronicoides is a species of flowering plant in the aster family known by the common name rayless ragwort. It is native to Oregon and northern and central California, where it can be found in the woodlands and forests of mountains and foothills, often in relatively dry habitat. It is a biennial or perennial herb growing up to about 90 centimeters tall from a fleshy root attached to a buttonlike caudex. The plant is often slightly woolly or cobwebby in texture. The leaves have lance-shaped to oval blades measuring up to 20 centimeters long, the largest ones lower on the stem. The inflorescence is a corymb which is flat and spreading, often resembling an umbel. The flower heads are cups lined with black- or green-tipped phyllaries and filled with many gold disc florets. There are usually no ray florets but one or two occasionally emerge from a head. The fruit is a hairless achene tipped with a pappus of long, white bristles.

Senecio blochmaniae is an uncommon species of flowering plant in the aster family known by the common names dune ragwort and Blochman's ragwort. It is endemic to the Central Coast of California, where it is known only from the direct coastline of San Luis Obispo and Santa Barbara Counties. It grows in sand dunes and sandy areas on coastal floodplains. It is a subshrub producing several arching stems often well exceeding a meter tall from a thick taproot. The stems are covered in many leaves, which are linear in shape, thick, and measure up to 12 centimeters long. The lower leaves become dry and curl up. The flower heads are lined by about 13 green-tipped phyllaries. They contain many yellow disc florets and each has usually 8 narrow yellow ray florets about a centimeter long.

Senecio flaccidus, formerly recorded as Senecio douglasii (in honor of the botanist David Douglas) member of the daisy family and genus Senecio also known as Threadleaf Groundsel (and Bush Senecio, Creek Senecio, Shrubby Butterweed, Comb Butterweed, Smooth Threadleaf Ragwort, Mono Ragwort, Douglas Ragwort, Douglas Groundsel, Sand Wash Groundsel, Felty Groundsel, Old Man, Yerba Cana, Squawweed or Cenicillo) is a native of the southwestern Great Plains of North America. Threadleaf ragwort is a fast growing, short lived (3 to 6 years) bushy perennial shrub growing to 4 feet 6 inches ; common in gravelly washes, dry creek beds, along roads & trails and mostly away from the coast.

Douglas' Groundsel (Senecio flaccidus var. douglasii) is a native shrub that grows in northern, southern and central California. It tends to grow in dry and rocky or sandy places, at elevations from 0-6500 feet.