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Sidalcea stipularis | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Malvales |
Family: | Malvaceae |
Genus: | Sidalcea |
Species: | S. stipularis |
Binomial name | |
Sidalcea stipularis | |
Sidalcea stipularis is a rare species of flowering plant in the mallow family, known by the common name Scadden Flat checkerbloom. [1]
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. [2]
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).
Calochortus striatus, known by the common name alkali mariposa lily, is a species of mariposa lily native to California and into Nevada.
Eryngium racemosum is a rare species of flowering plant in the family Apiaceae known by the common name delta eryngo, or delta button celery.
Leptosiphon nuttallii is a species of flowering plant in the phlox family known by the common name Nuttall's linanthus.
Sidalcea calycosa is a species of flowering plant in the mallow family known by the common names annual checkerbloom, checker mallow, and vernal pool checkerbloom.
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 42 sites there, and several populations are relatively large, but are greatly diminished by historical standards.
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 glaucescens is a species of flowering plant in the mallow family known by the common name waxy checkerbloom.
Sidalcea hartwegii is a species of flowering plant in the mallow family known by the common names valley checkerbloom and Hartweg's checkerbloom.
Sidalcea hickmanii is a species of flowering plant in the mallow family known generally by the common name chaparral checkerbloom.
Sidalcea hirsuta is a species of flowering plant in the mallow family known by the common name hairy checkerbloom.
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.
Sidalcea malviflora is a species of flowering plant in the mallow family, known by the common names dwarf checkerbloom, Greek mallow, prairie mallow and dwarf checkermallow.
Sidalcea oregana is a species of flowering plant in the mallow family known by the common name Oregon checkerbloom.
Sidalcea ranunculacea is a species of flowering plant in the mallow family known by the common name marsh checkerbloom and marsh checker mallow.
Sidalcea reptans is a species of flowering plant in the mallow family known by the common name Sierra checkerbloom and Sierra checker mallow.
Sidalcea robusta is an uncommon species of flowering plant in the mallow family known by the common name Butte County checkerbloom.
Streptanthus insignis is an uncommon species of flowering plant in the mustard family known by the common names plumed jewelflower and San Benito jewelflower. It is endemic to California, where it is known only from the Inner Central Coast Ranges. It grows in grassland and chaparral habitat, usually on serpentine soils. It is an annual herb producing a hairy, bristly, branching stem up to about 60 centimeters long. The lance-shaped basal leaves are borne on short petioles. Leaves midway up the stem are longer, and those near the top are shorter. They sometimes clasp the stem at their bases. Flowers occur at intervals along the upper stem. The uppermost flowers are often sterile and different in form. Each fertile flower has a bell-shaped calyx of sepals which is purple or greenish-yellow depending on subspecies. The petals at the tip are purplish or yellowish, also depending on subspecies. The fruit is a flat, straight silique which may be over 11 centimeters long.
Trifolium bolanderi is a species of clover known by the common names Bolander's clover and parasol clover.
Tripterocalyx crux-maltae is a species of flowering plant in the four o'clock family known by the common names Lassen sandverbena and Kellogg's sand-verbena.
Sidalcea nelsoniana is a rare species of flowering plant in the mallow family known by the common names Nelson's checkerbloom and Nelson's checkermallow. It is native to the Willamette Valley and Coast Range of Oregon and the southwestern corner of Washington in the United States. It is threatened by the destruction and degradation of its habitat, and it is a federally listed threatened species of the United States.