Sidalcea calycosa is a native annual herb in the Malvaceae (Mallow) family that grows in central and northern California from the coast to the central valley and Sierra foothills. It tends to grow in marshes, vernal pools and other wet places, at elevations from sea level to 3,900 feet. There are two recognized subspecies. Ssp. rhizomata (Pt. Reyes Checkerbloom) is a rare plant found only along the coast in Marin, Sonoma and Mendocino counties. Sidalcea calycosa is most often seen as an annual, but if conditions are right it may become a weak perennial growing from a rhizome. In the garden it needs a very wet area and not too much competition. If conditions are good it will spread.

Pt. Reyes Checkerbloom (Sidalcea calycosa ssp. rhizomata) is a rare native perennial herb that grows in Central and Northern California, primarily in the North Coast and Central Coast regions. It tends to grow in marshes and wet places, at elevations from 0-3900 feet.

Sidalcea covillei is an uncommon species of flowering plant in the mallow family known by the common names Owens Valley sidalcea, and Owens Valley checkerbloom. It is endemic to the Owens Valley of Inyo County, California, where it grows on alkali flats and in alkaline meadows and springs. While it is limited to this single valley, it is known from 44 sites there, and several populations are relatively large, with the total global population estimated at about two million individuals. This is a perennial herb growing from one or more fleshy roots and reaching maximum heights between 20 and 60 centimeters. The stem is hairy, with rough, bristly hairs near the base and finer ones higher up. The leaves have blades deeply divided into narrow linear lobes, almost divided into leaflets. The leaves are fleshy and waxy in texture. The inflorescence is an open panicle of several flowers each with five pinkish purple petals up to 1. 5 centimeters long. The leaves and flower sepals are coated in tiny branching hairs.

Sidalcea diploscypha is a species of flowering plant in the mallow family known by the common name fringed checkerbloom. It is endemic to California, where it grows in the woodlands and valleys of the central part of the state. Sidalcea diploscypha is an annual herb growing up to 40 to 60 centimeters tall with a hairy to bristly stem. The leaves have blades deeply divided into narrow, forking lobes covered in bristly hairs. The inflorescence is a crowded panicle of several flowers. The flower has five pink petals, each with a slight fringe on the tip and sometimes with dark coloration at the base. The petals can be up to 3. 5 centimeters long.

Sidalcea glaucescens is a species of flowering plant in the mallow family known by the common name waxy checkerbloom. It is native to California, where it grows in the southernmost mountains of the Cascade Range and the Sierra Nevada, its distribution extending just over the border into Nevada. It can be found in mountain meadow habitats of yellow pine forest, red fir forest, lodgepole forest, and subalpine forest. Sidalcea glaucescens is a perennial herb grows from a thick taproot and caudex unit, producing a slender, waxy stem up to 70 centimetres (28 in) long. The leaves are deeply divided into about five lobes which may be forked or edged with smaller lobes. The inflorescence is a loose panicle of several flowers with pink or purplish petals 1 to 2 centimeters long. The bloom period is June to August.

Sidalcea hartwegii is a species of flowering plant in the mallow family known by the common names valley checkerbloom and Hartweg's checkerbloom. The plant is endemic to California, where it grows in the Sacramento Valley and adjacent foothills of the California Coast Ranges to the west, and of the Sierra Nevada to the east. It can be found in oak woodland and grassland habitats below 600 metres (2,000 ft), sometimes on serpentine soils. Sidalcea hartwegii is an annual herb that produces a slender stem up to 30 centimetres (12 in) tall, mostly hairless with occasional branching hairs. The leaf blades are deeply divided into five to seven narrow linear lobes. The inflorescence is a clustered panicle of four to six flowers, each with five purplish pink petals about 2 centimeters long. The bloom period is May and June.

Sidalcea hickmanii is a species of flowering plant in the mallow family known generally by the common name chaparral checkerbloom. Sidalcea hickmanii is endemic to California, where it grows in the Central Coast Ranges, the Transverse Ranges and parts of the northern coast. There are four subspecies, most of which are separated geographically. The plant grows in chaparral and other habitat, sometimes on serpentine soils. This perennial herb produces a rough-haired stem up to a meter tall with a woody caudex at the base. The leaves have wide, fan-shaped blades which have rippled edges or divisions into narrow lobes. The inflorescence is an array of several racemes of flowers. Each has pinkish to purplish petals up to 2. 5 centimeters long. Subspecies. Sidalcea hickmanii ssp. anomala - Cuesta Pass checkerbloom is a rare subspecies known only from the vicinity of the Hwy. 101 Cuesta Pass in the southern Santa Lucia Mountains, in San Luis Obispo County, where it is limited to serpentine substrates. It has deeply lobed to almost compound leaves. While rare it becomes locally abundant in areas recently burned by wildfire. Sidalcea hickmanii ssp. hickmanii - Hickman's checkerbloom is limited to the Santa Lucia Mountains of Monterey County. Sidalcea hickmanii ssp. parishii - Parish's checkerbloom is a rare subspecies which has a disjunct distribution in the Transverse Ranges. It is known from the Santa Ynez Mountains north of Santa Barbara, as well as the San Bernardino Mountains on the inland eastern side of the greater Los Angeles Basin area. Sidalcea hickmanii ssp. viridis - Marin checkerbloom is known from Marin County and the northern San Francisco Bay Area, several hundred miles from the other subspecies.

Cuesta Pass Checkerbloom (Sidalcea hickmanii ssp. anomala) is a rare native perennial herb that grows in Southern and Central California, primarily in the South Coast Range and South Coast regions. It tends to grow at elevations from 200-7200 feet.

Sidalcea hirsuta is a species of flowering plant in the mallow family known by the common name hairy checkerbloom. It is endemic to California, where it grows in seasonally wet habitat throughout the north-central part of the state, such as vernal pools. It is found in the North California Coast Ranges, the Sacramento Valley and San Joaquin Valley, and the Sierra Nevada foothills. Sidalcea hirsuta is an annual herb that produces a thick stem up to 80 centimeters tall, the top parts covered in bristly hairs. The leaf blades are deeply divided into narrow linear lobes and coated in bristles. The inflorescence is a dense cluster of flowers with pink petals up to 2. 5 centimeters long.

Sidalcea keckii is a rare species of flowering plant in the mallow family, known by the common names Keck's checkerbloom and Keck's checkermallow. The plant is endemic to California, where it is known from the Inner Northern California Coast Ranges and Southern Sierra Nevada foothills. Southern SierraThree recent occurrences in the southern Sierra, all of which may have been extirpated by now. The plant was thought extinct in the southern Sierra until it was rediscovered at one site in Tulare County in 1992. This site, which was located on private land, has since been converted for orange groves, possibly eliminating the plant. The owner of the land has not allowed any searches for the plant since then, but the area is considered critical habitat for this federally listed endangered species. Sidalcea keckii is an annual herb growing up to 35 centimeters tall which is bristly from top to base. The leaves have blades shallowly edged or deeply divided into lobes, the upper blades with toothed edges. The inflorescence is a dense cluster of a few flowers with deep pink petals measuring 1 to 2 centimeters long. Each flower has a calyx of pointed green sepals which may be streaked with pink. The bloom period is April and May.

Sidalcea malachroides, with the common name mapleleaf checkerbloom, is a flowering plant in the genus Sidalcea. The plant is native to the California Coast Ranges in the North Coast and Monterey Bay regions of California, and the Oregon Coast Range in Oregon. It grows below 700 metres (2,300 ft) in elevation. Within California it is a Vulnerable species listed on the California Native Plant Society Inventory of Rare and Endangered Plants. Sidalcea malachroides is a perennial herb or subshrub, 4-15 decimetres (16-59 in) tall. The leaves are generally all along stem. The flowers are head-like spikes, in white or pale purple-white. The bloom period is April to August.

Checker Bloom (Sidalcea malviflora) is a common native perennial herb in the Malvaceae (Mallow) family that grows in Northern, Southern and Central California, the Sierra Nevada and Sacramento Valley regions. It tends to grow in meadows and open flats, at elevations from sea level to 7,500 feet. It has bright green palmate leaves and 1" deep pink flowers arranged vertically on a spike. There are several recognized subspecies with different geographic ranges and slightly differing characteristics.

This plant tolerates a wide variety of soils, and prefers damp winter conditions and dry summer conditions. It is most often started from seed and sometimes behaves like an annual.

Grows best in sandy, coarse-grained or other fast draining soil. Prefers 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.

Dwarf Checkerbloom (Sidalcea malviflora ssp. laciniata) is a common native perennial herb that grows in Northern, Southern and Central California, primarily in the High Sierra Nevada and Sacramento Valley regions. It tends to grow in dry, open flats, at elevations from 0-7500 feet.

Checker Mallow (Sidalcea malviflora ssp. malviflora) is a common native perennial herb that grows in Northern, Southern and Central California, primarily in the High Sierra Nevada and Sacramento Valley regions. It tends to grow in dry, open places, at elevations from 0-7500 feet.

Salt Spring Checkerbloom (Sidalcea neomexicana) is a rare native perennial herb that grows in southern and central California. It is moderately fast growing and moderately long-lived. It grows in an upright form to a height of 2.5 feet, with active growth during the spring and summer. Flowers are purple and striking, and bloom in the mid spring. Leaves are medium green and deciduous. It tends to grow in alkaline springs and marshes, at elevations from 0-4900 feet.

Oregon Checker Mallow (Sidalcea oregana) is a native perennial herb that grows in Northern, Southern and Central California, primarily in the High Sierra Nevada region. It is moderately fast growing and moderately long-lived. It grows in an upright form to a height of 4.5 feet, with active growth during the spring and summer. Flowers are purple and striking, and bloom in the late spring. Leaves are medium green and deciduous. It tends to grow in wet meadows and marshes, at elevations from 0-9800 feet.

Oregon Checkerbloom (Sidalcea oregana ssp. oregana) is a native perennial herb that grows in central and northern California. It tends to grow in wet meadows and marshes, at elevations from 1600-8200 feet.

Spicate Checker Mallow (Sidalcea oregana ssp. spicata) is a native perennial herb that grows in northern, southern and central California. It tends to grow in wet meadows and marshes, at elevations from 3600-9800 feet.

Sidalcea pedata, also called birdfoot checkerbloom or Big Bear checkerbloom, is a rare and endangered perennial herb of California. It blooms between May and July. However, it is an endemic species of California and only occurs in few places in the San Bernardino Mountains, primarily at Bear Valley, Bluff Lake. It grows at 1500-2100 m elevation in moist meadows to open woodlands and the unique pebble plain habitat of the area. Since Big Bear Valley is a resort destination, the birdfoot checkerbloom is threatened by development, vehicles and grazing. Sidalcea pedata grows from a fleshy taproot and can be as tall as 40 cm. It has few stems, which are erect and somewhat stellate at the base. The leaves are basal and are ternately divided into 5-7 parts. The flowers are about 1. 3 cm long and are a deep rose-pink with darker veins. They are arranged in a spike-like raceme, with the upper flowers closely crowded together. Sidalcea pedata grows from a fleshy taproot and can be as tall as 40 cm. It has few stems, which are erect and somewhat stellate at the base. The leaves are basal and are ternately divided into 5-7 parts. The flowers are about 1. 3 cm long and are a deep rose-pink with darker veins. They are arranged in a spike-like raceme, with the upper flowers closely crowded together. Like other species within the genus Sidalcea, such as S. oregana ssp,S. pedata is sexually dimorphic. Other information. The birdfoot checkerbloom was listed as endangered by the state of California January 1982 and by the U. S. Federal Government August 31, 1984. References and

Sidalcea ranunculacea is a species of flowering plant in the mallow family known by the common name marsh checkerbloom and marsh checker mallow. The plant is endemic to California, known only within Tulare County and Kern County. It grows in the Southern Sierra Nevada and Greenhorn Mountains at 1,820-3,050 metres (5,970-10,010 ft) in elevation. Many populations are within the Sequoia National Forest, Sequoia National Park, or Kings Canyon National Park. It grows in moist areas, such as wet meadows and on stream banks, in yellow pine forest, red fir forest, lodgepole forest habitats. Sidalcea ranunculacea is a rhizomatous perennial herb reaching up to 0. 5 metres (1. 6 ft) tall. It is coated in hairs, the lower ones becoming bristly. The fleshy lobed leaf blades also have hairs and bristles. The inflorescence is a dense, spikelike cluster or series of clusters of flowers. Each flower has five pink to purple petals up to 1. 5 centimeters long. The blooming period is June to August.

Sidalcea reptans is a species of flowering plant in the mallow family known by the common name Sierra checkerbloom and Sierra checker mallow. The plant is endemic to California, where it can be found throughout the Sierra Nevada at 1,120-2,000 metres (3,670-6,560 ft) in elevation, especially the central peaks of the range. It grows in moist and dry habitat types in the mountains, in meadows of yellow pine forest and red fir forest. Sidalcea reptans is a rhizomatous perennial herb reaching up to 0. 5 metres (1. 6 ft) tall. Lower portions of the stem sometimes root when in contact with moist substrate. It is coated in long, bristly hairs. The leaf blades are also bristly. They vary in shape, the lower ones barely lobed and borne on long petioles, and the higher ones often deeply cut into lobes. The inflorescence is a long, open series of flowers with pink to lavender petals up to 2 centimeters in length. The bloom period is June to August.

Sidalcea robusta is an uncommon species of flowering plant in the mallow family known by the common name Butte County checkerbloom. Sidalcea robusta is endemic to Butte County, California, where it is known from about 20 occurrences, including some near Chico. It is a resident of chaparral and woodland habitat in mountain foothills. It is an Endangered species listed by the California Native Plant Society Inventory of Rare and Endangered Plants and The Nature Conservancy.

Checkerbloom (Sidalcea malviflora ssp. sparsifolia) is a common native that grows in California, primarily in the High Sierra Nevada and Sacramento Valley regions. It tends to grow in dry and open places, at elevations from 0-7500 feet.

Sidalcea stipularis is a rare species of flowering plant in the mallow family, known by the common name Scadden Flat checkerbloom. The plant is endemic to Nevada County in eastern California. It is known from only two occurrences on Scadden Flat in the Sierra Nevada foothills, near Grass Valley. It grows in marshy habitats. Sidalcea stipularis is a rhizomatous perennial herb, producing a bristle-haired stem up to 65 centimeters tall. The leaves have oval, unlobed blades on petioles and are evenly spaced along the stem. Each is accompanied by short stipules. The inflorescence is a headlike cluster of flowers with a cuplike skirt of hairy bracts. Each flower has five pink petals about 1. 5 centimeters long each. Threats to this rare species include the invasion of Himalayan blackberry (Rubus armeniacus) into its habitat. One of the two occurrences is next to a road where there is heavy CalTrans activity. The plant has no federal protection but it is a state-listed endangered species in California, which means that killing or possessing this species is prohibited unless permitted by the California Department of Fish and Game (California Fish and Game Code Section 2080).