Imbricate Phacelia (Phacelia imbricata ssp. imbricata) is a native perennial herb that grows in northern, southern and central California. It tends to grow in slopes, at elevations from 200-7500 feet.

Phacelia insularis, the coast phacelia is a rare species of phacelia. It is endemic to California, where it has a disjunct distribution. Phacelia insularis is an annual herb with stems reaching about 20 centimeters long, the North Coast variety decumbent or somewhat upright and the island variety growing erect. It is glandular and coated in stiff hairs. The leaves may be up to 8 centimeters long and are borne on petioles. The larger leaves have blades divided deeply into lobes. The inflorescence is a one-sided curving or coiling cyme of many purple flowers. The North Coast variety has bell-shaped flowers under a centimeter in length, while the island variety has wider, sometimes larger flowers. Phacelia insularis is an annual herb with stems reaching about 20 centimeters long, the North Coast variety decumbent or somewhat upright and the island variety growing erect. It is glandular and coated in stiff hairs. The leaves may be up to 8 centimeters long and are borne on petioles. The larger leaves have blades divided deeply into lobes. The inflorescence is a one-sided curving or coiling cyme of many purple flowers. The North Coast variety has bell-shaped flowers under a centimeter in length, while the island variety has wider, sometimes larger flowers.

Phacelia inundata is a species of phacelia known by the common names playa yellow phacelia and playa phacelia. It is native to the Modoc Plateau and surrounding areas in Oregon, western Nevada, and northeastern California, where it grows in the alkaline soils of playas and dry lakebeds. It is an annual herb spreading along the ground or growing erect to a maximum height near 40 centimeters. It is glandular and coated in stiff hairs. The small leaves are oval or oblong and lobed or divided into segments. The inflorescence is a curving or coiling cyme of bell-shaped flowers each no more than half a centimeter long. Unlike many phacelias which have blooms in shades of purple and blue, this species has bright yellow flowers. It is an annual herb spreading along the ground or growing erect to a maximum height near 40 centimeters. It is glandular and coated in stiff hairs. The small leaves are oval or oblong and lobed or divided into segments. The inflorescence is a curving or coiling cyme of bell-shaped flowers each no more than half a centimeter long. Unlike many phacelias which have blooms in shades of purple and blue, this species has bright yellow flowers.

Phacelia inyoensis, the common name Inyo phacelia, is an uncommon species of phacelia. It is endemic to California, in Inyo and Mono Counties, often within the Inyo National Forest. It is known only from the Eastern Sierra Nevada, Inyo Mountains, and White Mountains, and valley meadows between them. It grows in meadows on alkaline soils.

Phacelia ivesiana is a species of flowering plant in the borage family, Boraginaceae. Its common names include Ives' phacelia and Ives' scorpionweed. It is divided into varieties that have been called sticky scorpionweed. It is native to the western United States. Phacelia ivesiana is an aromatic annual herb growing up to about 25 centimeters in maximum height. It has a branching, spreading, hairy stem which is often glandular. The leaves are up to 6 centimeters long and deeply lobed or divided into segments. The inflorescence is a cyme of bell-shaped flowers each only about 4 millimeters long. The flowers are white with tubular yellow throats. The fruit is a beaked capsule a few millimeters long. Phacelia ivesiana is an aromatic annual herb growing up to about 25 centimeters in maximum height. It has a branching, spreading, hairy stem which is often glandular. The leaves are up to 6 centimeters long and deeply lobed or divided into segments. The inflorescence is a cyme of bell-shaped flowers each only about 4 millimeters long. The flowers are white with tubular yellow throats. The fruit is a beaked capsule a few millimeters long.

Phacelia lemmonii is a species of phacelia known by the common name Lemmon's phacelia. It is native to the southwestern United States, where it grows in mountain and sandy desert habitat. Phacelia lemmonii is an annual herb producing a branching or unbranched stem up to about 20 centimeters in maximum height. It is glandular and lightly hairy in texture. The lobed oval leaves are 1 to 4 centimeters long. The glandular, hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is about half a centimeter long and white to pale lavender with a tubular yellow throat. Phacelia lemmonii is an annual herb producing a branching or unbranched stem up to about 20 centimeters in maximum height. It is glandular and lightly hairy in texture. The lobed oval leaves are 1 to 4 centimeters long. The glandular, hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is about half a centimeter long and white to pale lavender with a tubular yellow throat.

Phacelia leonis is a rare species of phacelia known by the common name Siskiyou phacelia. It is endemic to the Klamath Mountains of southern Oregon and far northern California, where it grows in serpentine soils in the coniferous forests. Phacelia leonis is an annual herb producing a usually unbranched erect stem up to 15 centimeters tall. It is glandular and lightly hairy in texture. The narrow, tapering leaves are 1 to 3 centimeters long. The hairy inflorescence is a one-sided cyme of bell-shaped flowers. Each flower is only 2 or 3 millimeters long and light blue or lavender in color. Phacelia leonis is an annual herb producing a usually unbranched erect stem up to 15 centimeters tall. It is glandular and lightly hairy in texture. The narrow, tapering leaves are 1 to 3 centimeters long. The hairy inflorescence is a one-sided cyme of bell-shaped flowers. Each flower is only 2 or 3 millimeters long and light blue or lavender in color.

Phacelia linearis, the linear-leaved phacelia or threadleaf phacelia, is a species of phacelia. It is native to western North America from western Canada to Wyoming to northern California, where it grows in forest, woodland, open scrub, and other habitat. Phacelia linearis is an annual herb producing a branching or unbranched erect stem up to 60 centimeters tall. It is coated in soft or stiff hairs. The leaves are linear or lance-shaped and sometimes divided into several narrow, pointed lobes. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is up to a centimeter long and light purple in color with a paler tubular throat. Phacelia linearis is an annual herb producing a branching or unbranched erect stem up to 60 centimeters tall. It is coated in soft or stiff hairs. The leaves are linear or lance-shaped and sometimes divided into several narrow, pointed lobes. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is up to a centimeter long and light purple in color with a paler tubular throat. Wikimedia Commons has media related to Phacelia linearis.

Phacelia longipes is a species of phacelia known by the common name longstalk phacelia. It is endemic to California, where it grows in the Transverse Ranges and adjacent western Mojave Desert. Its habitat includes chaparral, woodland, and forest, in rocky soils. It is an annual herb growing decumbent or erect to a maximum length of about 40 centimeters. It is hairy and coated lightly in soft and stiff hairs. Most of the leaves are low on the plant, the toothed oval blades borne on long petioles. The hairy, hairy flower cluster is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is roughly a centimeter long and white to light blue in color. It has a calyx of linear sepals and five long, protruding stamens.

Phacelia malvifolia, with the common name stinging phacelia, is a species of phacelia. It is native to California, where it grows along the northern and central Coast and the California Coast Ranges. its distribution extends north along the coast just into southwestern Oregon. It grows in forest and scrub habitat. Phacelia malvifolia is an annual herb growing mostly erect to a maximum height near one meter. It is coated in stiff, yellowish, glandular hairs with bulbous bases which produce a stinging reaction when touched. The rough-haired leaves are up to 14 centimeters long, the blades of the longer ones divided into usually three lobed leaflets. Phacelia malvifolia is an annual herb growing mostly erect to a maximum height near one meter. It is coated in stiff, yellowish, glandular hairs with bulbous bases which produce a stinging reaction when touched. The rough-haired leaves are up to 14 centimeters long, the blades of the longer ones divided into usually three lobed leaflets. The hairy to bristly inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is about half a centimeter long and whitish in color.

Phacelia marcescens is a species of phacelia known by the common name persistentflower phacelia. It is endemic to the Sierra Nevada and its foothills in California, where it grows in meadows, forests, and other mountain habitat. Phacelia marcescens is an annual herb growing mostly erect to a maximum height near 20 centimeters. It is glandular and coated in short, stiff hairs. The leaves are 1 to 5 centimeters long, oval in shape, and smooth-edged, sometimes with small lobes near the bases of the blades. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is about half a centimeter long and purple in color, often with a paler throat. Phacelia marcescens is an annual herb growing mostly erect to a maximum height near 20 centimeters. It is glandular and coated in short, stiff hairs. The leaves are 1 to 5 centimeters long, oval in shape, and smooth-edged, sometimes with small lobes near the bases of the blades. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is about half a centimeter long and purple in color, often with a paler throat.

California Bluebell (Phacelia minor) is a charming annual in the forget-me-not family, featuring striking lavender to deep blue-purple, bell-shaped flowers. Blooming in spring, the flowers form clusters atop reddish stems that reach up to 2 feet tall, often gracefully drooping at the tips. The plant’s dark green foliage provides a beautiful contrast to its vibrant blooms.

California Bluebell thrives in full sun and well-drained soil, making it an excellent choice for low-water landscapes. Highly drought-tolerant, it attracts a variety of pollinators, including bees, butterflies, and sphinx moths, adding ecological value to any garden.

Phacelia mohavensis is a species of phacelia known by the common name Mojave phacelia. It is endemic to southern California, where it is mostly limited to the San Gabriel Mountains and San Bernardino Mountains. It grows in the forests and wooded slopes of the mountains in sandy and gravelly substrates. Phacelia mohavensis is an annual herb producing a mostly unbranched erect stem up to 25 centimeters tall. It is glandular and coated lightly in stiff hairs. The leaves are linear or lance-shaped, smooth-edged, and up to 4. 5 centimeters in length. Phacelia mohavensis is an annual herb producing a mostly unbranched erect stem up to 25 centimeters tall. It is glandular and coated lightly in stiff hairs. The leaves are linear or lance-shaped, smooth-edged, and up to 4. 5 centimeters in length. The hairy, glandular inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is just under a centimeter long and white to pale blue in color with a yellowish tubular throat. It has a calyx of long, narrow, fuzzy-haired sepals.

Phacelia monoensis is an uncommon species of phacelia known by the common name Mono County phacelia. It is native to the Great Basin plateaus east of the Sierra Nevada in Mono County, California and central western Nevada. It grows in sagebrush, on wooded slopes, and on open expanses of alkaline clay soils. It is apparently most abundant in disturbed areas, such as along road cuts and in areas of mining activity. Phacelia monoensis is a small, patchy annual herb producing spreading, stout stems up to about 12 centimeters long. It is glandular and coated lightly in hairs. The leaves are 1 or 2 centimeters long and sometimes have lobed edges. The hairy, glandular inflorescence is a one-sided cyme of several narrow bell-shaped yellow flowers each no more than half a centimeter long.

Phacelia mustelina is an uncommon species of phacelia known by the common names weasel phacelia and Death Valley round-leaved phacelia. It is native to the desert mountains and flats of eastern California (mainly Death Valley and Inyo County) and western Nevada (Nye County), where it grows in woodland and open scrub habitat. It is a glandular annual herb growing decumbent or upright to a maximum height around 30 centimeters. The toothed rounded leaves are 1 to 4 centimeters long with blades borne on petioles. The hairy, glandular inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is up to a centimeter long and deep to light purple to nearly white in color.

Phacelia mutabilis is a species of phacelia known by the common name changeable phacelia. It is native to the western United States, where it can be found in mountains and foothills, in forested and open habitat types, and deserts. It is a perennial herb growing mat-like, decumbent, or upright with hairy stems reaching 60 centimeters in maximum length. The leaves have lance-shaped or oval blades which are sometimes divided into 3 segments. The inflorescence is a one-sided curving or coiling cyme of tubular to bell-shaped flowers. Each flower is about half a centimeter long and white, yellowish or purplish in color with long protruding stamens. It is surrounded by a calyx of elongated, hairy sepals.

Phacelia nashiana is a species of phacelia known by the common name Charlotte's phacelia. It is endemic to California, where it is known only from the ecotone where the lower Sierra Nevada and Tehachapi Mountains transition into the Mojave Desert. It grows in scrub and woodland and on granite mountain slopes. Phacelia nashiana is a mostly erect annual herb producing a small branching or unbranched stem up to about 8 centimetres (3. 1 in) tall. It is coated in short, stiff, and gland-tipped black hairs. The leaves, which are mostly arranged around the base of the stem, have shallowly lobed oval or rounded blades on petioles a few centimeters long. The hairy, glandular inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is 1 to 2 centimeters long and brilliant deep blue in color with usually five small white spots above the white tubular throat. It has five protruding stamens tipped with white anthers.

Phacelia neglecta is a species of flowering plant in the borage family, Boraginaceae. Its common names include alkali phacelia and neglected scorpionweed. It is native to the deserts of the southwestern United States in Nevada, Arizona, and southeastern California, where it grows in varied desert habitat, including areas with alkali soils. It is likely that its distribution extends into Baja California. It is a mostly erect annual herb producing a small mostly unbranched stem up to about 20 centimeters tall. It is coated thinly in glandular hairs. The leaves, which are mostly arranged around the base of the stem, have crinkly or wavy-edged round blades on petioles a few centimeters long. The hairy, glandular inflorescence is a one-sided curving or coiling cyme of funnel- or bell-shaped flowers. Each flower is about half a centimeter long and white to cream in color.

Phacelia nemoralis is a species of phacelia known by the common name shade phacelia. It is native to the west coast of the United States from Washington to central California, where it grows in moist, usually forested areas along the coastline and in the coastal mountain ranges. It is a perennial herb producing a densely hairy, erect stem which may reach two meters in height. The leaves are variable in shape, the largest lower ones 15 to 25 centimeters long and divided into several leaflets. Upper leaves are smaller and undivided. The flower cluster is a one-sided coiling cyme of bell-shaped flowers. Each flower is up to 6 millimeters long and greenish or yellowish white in color with whiskery protruding stamens. There are two subspecies. The ssp. oregonensis, known commonly as Oregon phacelia or woodland phacelia, can be found in Washington State, while ssp. nemoralis does not occur there.

Shade Phacelia (Phacelia nemoralis ssp. nemoralis) is a native perennial herb that grows in central and northern California. It tends to grow in moist slopes and streambanks, at elevations from 200-2300 feet.

Phacelia orogenes is an uncommon species of phacelia known by the common name mountain phacelia. It is endemic to California, where it is known only from the southern High Sierra, particularly around Mineral King in Sequoia National Forest. It grows in coniferous forest and meadows.

Phacelia pachyphylla is a species of phacelia known by the common name blacktack phacelia. It is native to the deserts of California and Baja California, where it grows in sandy alkali flats and scrub. It is an annual herb growing erect to a maximum height around 17 centimeters. It is glandular in texture, the hairs tipped with bulbous glands. The leaves, which are mostly arranged around the base of the stem, have crinkly or wavy-edged rounded blades on petioles a few centimeters long. The hairy inflorescence is a one-sided curving or coiling cyme of funnel- or bell-shaped flowers. Each flower is about half a centimeter long and light purple in color.

Phacelia parishii is an uncommon species of phacelia known by the common name Parish's phacelia. It is native to the desert southwest of the United States, where it is known from scattered occurrences in Nevada and Arizona, and about two occurrences in California. It grows in desert scrub and alkali soils such as in playas, barren dry lakes, and gypsum beds. It is an annual herb growing a spreading, erect stem up to 15 centimeters tall. It is coated in soft, short, glandular hairs. The leaves, which spread around the lower stem, are up to 3 centimeters long with oval blades with smooth or faintly toothed edges. The small, fuzzy inflorescence is a one-sided curving or coiling cyme of narrow bell-shaped flowers. Each flower is about half a centimeter long and light purple in color with a yellowish tubular throat.

Phacelia parryi is a species in the Boraginaceae (Forget-Me-Not) family known by the common name Parry's Phacelia. It is native to southern California and Baja California, where it grows in coastal and inland mountain ranges and deserts. It is found in many types of local habitats, such as coastal sage scrub, chaparral, and open, recently burned slopes. It is an annual herb growing a mostly erect stem 10 to 70 centimeters long. It is hairy and coated in soft and stiff glandular hairs. The leaves are up to 12 centimeters long with toothed oval blades borne on petioles. The flower cluster is a cyme of widely bell-shaped flowers each 1 to 2 centimeters long. The flower is purple in color, sometimes with pale coloration in the throat, and an arrangement of five white spots. The five protruding stamens are hairy and tipped with white anthers. It is typically grown from seed with other annuals.

This species can be easily confused with Phacelia minor, and their ranges overlap, though more easily distinguished when in flower. It should be noted that there are a very large number of species in the genus Phacelia. Most are annuals. Gardeners should look for species appropriate to their area and garden conditions.

Phacelia pedicellata is a species of flowering plant in the borage family, Boraginaceae. Its common names include specter phacelia and pedicellate phacelia. It is native to the southwestern United States and Baja California, where it can be found in several types of habitat, including creosote bush scrub and Joshua tree woodland. It is an annual herb growing a mostly erect stem up to 50 centimeters long. It is glandular and coated in stiff hairs, which, like those of many other phacelias, cause dermatitis when touched. The leaves are up to 12 centimeters long with rounded or oval blades, the largest divided into 3 to 7 leaflets. The hairy, glandular inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is roughly half a centimeter long and may be pink to blue in color.

Phacelia phacelioides, the Mt. Diablo phacelia, is a species of phacelia. It is endemic to California, where it is known from about 20 occurrences in the coastal mountain ranges of the inner San Francisco Bay Area, including Mount Diablo. It is a resident of chaparral and woodland habitat. The Mt. Diablo phacelia, Phacelia phacelioides, is an annual herb growing an upright, mostly unbranched stem up to 20 centimeters long. It is coated in soft and stiff hairs. The leaves are up to 8 or 10 centimeters long with rounded or oval blades borne on petioles. The hairy inflorescence is a one-sided curving or coiling cyme of narrow bell-shaped flowers. Each flower is roughly half a centimeter long and white to lavender in color, sometimes with darker purple streaks. It is surrounded by a calyx of long, densely hairy sepals.

Phacelia platyloba is a species of phacelia known by the common name broadlobe phacelia. It is endemic to California, where it is known only from a section of the central Sierra Nevada foothills. It is a resident of chaparral, woodland, and other local habitat. It is an annual herb producing a branched or unbranched erect stem up to 45 centimeters tall. It is coated in soft and stiff hairs. The leaves are up to 9 centimeters long and divided into several lobed to intricately toothed leaflets. The inflorescence is a one-sided curving or coiling cyme of widely bell-shaped flowers. Each flower is about half a centimeter long and pale blue or lavender in color. It is surrounded by a calyx of densely hairy sepals which are unequal in size and shape, 2 being longer and wider than the other 3.

Phacelia pringlei is a species of phacelia known by the common name Pringle's phacelia. It is endemic to far northern California, where it is known only from the southern Klamath Mountains. It grows in coniferous forest and open mountain slopes. It is an annual herb producing a mostly unbranched erect stem up to 18 centimeters tall. The linear or lance-shaped leaves are up to 3 centimeters long. The hairy, glandular inflorescence is a cyme of five-lobed lavender flowers each no more than half a centimeter long.

Phacelia procera is a species of phacelia known by the common name tall phacelia. It is native to the northwestern United States as far south as the Sierra Nevada, where it grows in mountainous habitat, such as forests, meadows, and talus. It is a perennial herb producing an erect stem from a taproot, reaching a maximum height around two meters. It is hairy in texture, some of the hairs black and glandular. The lance-shaped or oval leaves are up to 12 centimeters long and toothed or lobed along the edges.

Phacelia purpusii is a species of phacelia known by the common name Purpus' phacelia that is endemic to California where it can be found in forests and other habitats within Sierra Nevada or farther north in the southernmost portion of the Cascades and adjacent Modoc Plateau. It is a glandular and hairy-textured annual herb exhibiting a mostly erect habit to a maximum height of about 40 centimeters. Its oval leaves are up to 5 centimeters long and smooth or lobed along the edges, and its hairy inflorescences are one-sided, curving or coiling cymes of tiny, bell-shaped flowers. Each flower is under a centimeter long and a shade of light purple.

Phacelia quickii is a species of phacelia known by the common name Quick's phacelia. It is endemic to the Sierra Nevada of California, where it can be found on granite substrates in mountain habitat.

Phacelia racemosa is a species of phacelia known by the common name racemose phacelia. It is endemic to California, where it can be found in the Sierra Nevada and adjacent slopes and peaks in the southernmost Cascade Range. It grows in coniferous forests in gravelly and rocky substrates. Phacelia racemosa is an annual herb growing erect with a stem reaching up to 18 centimeters tall. The leaves are linear or lance-shaped and measure 1 to 4 centimeters long. The inflorescence is a one-sided curving or coiling cyme of small bell-shaped flowers. Each flower is under half a centimeter long, pale blue to nearly white in color, and surrounded by a calyx of long, narrow sepals.

Phacelia ramosissima is a species in the Boraginaceae (Borage) family known by the common name Branching Phacelia. It is native to western North America from British Columbia to the southwestern United States, where it can be found in many types of habitats. It is variable in appearance, and there are many intergrading Varieties: In general it is a spreading or sprawling prostrate or upright perennial herb which may approach 1.5 meters in stem length. It is hairless to densely hairy, and some people detect an unpleasant odor from the glandular hairs. The leaves are 4 to 20 centimeters long and most are divided into several toothed or lobed leaflets. The flower cluster is a one-sided curving or coiling cyme of funnel- or bell-shaped flowers. Each flower is under a centimeter long and white to lavender in color with protruding stamens.

Phacelia rattanii is a species of phacelia known by the common name Rattan's phacelia. It is native to northern California, Nevada, and the West Coast of the United States. It can be found in mountain and foothill habitats, in shaded crevices and on steep slopes. Phacelia rattanii is an annual herb growing 15 centimeters to one meter in maximum stem length, taking an erect, branching form. It is glandular and coated in stiff hairs and bristles with bulbous bases. The leaves are oval, toothed or lobed, and up to about 7 centimeters long. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers each no more than half a centimeter long. The flowers are white to light blue and are surrounded by calyces of sepals coated in long hairs.

Phacelia rotundifolia is a species of flowering plant in the borage family, Boraginaceae, known by the common name roundleaf phacelia. It is native to the southwestern United States, where it can be found in habitat types such as creosote bush scrub and pinyon-juniper woodland. It is an annual herb growing decumbent to erect, up to 28 centimeters tall. It is glandular and coated in short, stiff hairs. The leaves are conspicuously rounded and have scalloped edges or dull teeth. The round leaf blade is borne on a petiole. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is roughly half a centimeter long and white to purple in color with a pale yellow throat.

Phacelia saxicola is a species of phacelia known by the common name stonecrop phacelia. It is native to the deserts, hills, and mountain slopes of far eastern California and adjacent sections of western Nevada and Arizona. It grows in woodland habitat and cracks in rocky limestone slopes above the deserts. It is an annual herb growing upright or erect no more than 15 centimeters tall, often remaining smaller and compact. It is glandular and its many small branches are coated in short, stiff hairs. The leaves are no more than a centimeter long with fleshy lance-shaped to bulbous oval blades on short petioles. The hairy inflorescence is a one-sided curving or coiling cyme of small bell-shaped flowers, each only 3 or 4 millimeters long. The flowers are light blue or purple with whitish throats.

Phacelia sericea (Silky Phacelia, Blue Alpine Phacelia, or Sky-pilot) is a showy perennial species of Phacelia endemic to western North America. Uncommon, it grows mainly at subalpine to alpine elevations in forest openings or above treeline among rocks and sand. It is listed by the Federal Highway Administration as a native species suitable for landscaping along roadsides in Colorado. Sericea comes from the Latin sericeus, or silky, referring to the fine hairs on the leaves and stem. Phacelia sericea consists of several upright or ascending stems to 0.6 meter (2 feet) from a tap-rooted, branched woody base. Its leaves are pinnatifid with cleft or entire segments. The basal leaves are somewhat larger than the upper cauline leaves and are more persistent and petiolate. The leaves and stems are generally covered with silvery silky hairs but are scarcely hairy. The flower cluster consists of several short panicles, tightly packed, at the end of the stem, resembling a bottle-brush. The dark blue to purple bell-shaped corolla is 4-6 millimeter across. It is hairy inside and out but not hairy. The filaments are two to three times as long as the corolla and give the flower cluster a fuzzy appearance. The anthers are bright yellow or orange and the style is shortly cleft. The fruit consists of two-chambered capsules with 8 to 18 seeds.

Silky Phacelia (Phacelia sericea ssp. ciliosa) is a rare native perennial herb that grows in northern California.

Phacelia stebbinsii is an uncommon species of phacelia known by the common name Stebbins' phacelia. The plant is endemic to California, where it is known only from a northern section of the Sierra Nevada in El Dorado County. It grows at elevations from 900-2,100 metres (3,000-6,900 ft), in forests, meadows, and on rocky slopes. Phacelia stebbinsii is an annual herb producing a mostly unbranched stem 10 to 40 centimeters tall. It is lightly hairy and sometimes glandular. The leaves are oval or lance-shaped and some have lobed edges. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is around half a centimeter long and white to light blue in color with protruding stamens.

Phacelia stellaris is a rare species of flowering plant in the borage family, Boraginaceae, known by the common names star phacelia and Brand's phacelia. Phacelia stellaris is an annual herb producing a spreading, branching stem up to about 25 centimeters long and lightly hairy in texture. The leaves are lance-shaped to oval with lobed edges, sometimes divided into smaller leaflets. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers, each roughly half a centimeter long. The five-lobed flowers are pale blue or purple in color.

Lacy Phacelia (Phacelia tanacetifolia) is an annual plant whose lovely lavender-blue flowers are very attractive to pollinators and other beneficial insects. The flowers are bell-shaped with long stamens that protrude beyond the petals. The flowers grow in clusters at the top of the stem. The deeply cut leaves give this plant its lacy appearance. Lacy Phacelia is a valuable pollinator plant and is especially favored by bees. It also attracts hoverflies, beneficial insects that eat aphids and other pests.

Lacy Phacelia is often planted in vineyards and next to crops because its nectar-rich flowers are attractive to bees and other pollinators. It is also used as a bee-friendly cover crop on organic farms. In the garden, it does best in full sun and well-draining sandy soil. This plant has a fast growth rate. Be aware that some people can experience skin irritation after touching this plant.

Phacelia thermalis is a species of phacelia known by the common names heated phacelia and hot spring phacelia. It is native to the western United States from northeastern California to Idaho, with a disjunct population in Montana. It grows in plateau and mountain habitat in open areas with clay soils. It is an annual herb with spreading or upright branches up to 45 centimeters long. It is glandular and coated in stiff hairs. The leaves are oval and toothed or divided into segments. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers. Each flower is under half a centimeter long and white to light blue in color.