Phoenicaulis is a monotypic genus of flowering plants in the mustard family, Brassicaceae. It contains the single species Phoenicaulis cheiranthoides, which is known by the common names daggerpod and wallflower phoenicaulis.
Iliamna latibracteata is an uncommon species of flowering plant in the mallow family known by the common names California globe mallow and California wild hollyhock.
Ionactis alpina is a species of aster known by the common name lava aster. It is native to western United States from California to Montana, where it grows in dry areas.
Anulocaulis annulatus is a species of flowering plant in the four o'clock family known by the common name valley ringstem. It is endemic to the Mojave Desert of California, especially in the vicinity of Death Valley. This is a perennial herb growing a number of thin, erect stems sometimes exceeding a meter in height from a thick caudex.
Boechera cobrensis is a species of flowering plant in the mustard family known by the common names Masonic rockcress and sagebrush rockcress. It is native to the western United States from eastern California to Wyoming, where it is found in sandy habitat, especially sagebrush. This is a perennial herb growing several erect, slender stems to heights near half a meter from a branching caudex. The plant forms a narrow clump with a base of narrow, linear, densely hairy leaves up to 5 centimeters long. There are also a few slightly shorter leaves clasping the stems at intervals. The top of each stem is occupied by an inflorescence of small, nodding flowers with dull yellowish sepals and white petals. The flowers give way to fruits which are narrow, straight siliques up to 4 centimeters long containing winged seeds.
Boechera stricta is a species of flowering plant in the mustard family known by the common name Drummond's rockcress. It is native to much of North America, including most of Canada, and the western and northeastern United States. It can be found in many habitat types, including disturbed areas. It is a biennial or perennial herb growing one or more erect stems from a small caudex. The stems may branch near the top and reach heights anywhere between 30 and 90 centimeters. They are generally not hairy. There is a basal clump of widely lance-shaped leaves about the caudex, each up to 8 centimeters long. There are also widely spaced leaves along the stem. The top of the stem is occupied by a narrow inflorescence of flowers which are usually white, but sometimes light pink. The fruit is a straight, erect silique up to 10 centimeters long containing two rows of winged seeds.
Astragalus agrestis is a species of milkvetch known by the common names purple milkvetch, purple loco, and field milkvetch. It is native to much of western and northern North America from most of Canada to the southwestern United States, as well as eastern Asia. It grows in vernally moist areas such as meadows, and is often found in sagebrush.
Caulanthus major is a species of flowering plant in the mustard family known by the common name slender wild cabbage. It is native to the Great Basin and surrounding regions of the United States, where it grows on dry mountain slopes and similar habitat.
Erigeron multiceps is a species of flowering plant in the daisy family known by the common names Kern River daisy and Kern River fleabane. It is endemic to California, where it is known mostly from the Kern Plateau in the southern High Sierra Nevada of eastern Tulare County. It is a perennial herb growing a hairy stem up to about 20 centimeters tall from a taproot and caudex. The base of the stem is surrounded by oblong leaves 2 to 5 centimeters long, and there are some smaller leaves along the length of the stem. The inflorescence produces hairy, glandular flower heads filled with yellow disc florets and a fringe of up to 125 thin, flat white to purple-tinged ray florets. The fruit is an achene with a pappus of bristles.
Boechera breweri is a species of flowering plant in the mustard family known by the common name Brewer's rockcress.
Lithospermum californicum is a species of flowering plant in the borage family known by the common name California stoneseed. It is native to southern Oregon and northern California, where it can be found in many types of mountain habitat, such as forest, woodland, and chaparral. It is a hairy perennial herb growing from a taproot and woody caudex. It produces a clump of branching, spreading stems up to about 40 centimeters long. The stems are lined with widely lance-shaped, lightly hairy leaves up to 5 centimeters long. The flowers appear near the ends of the stem branches, each with a calyx of narrow, pointed sepals. The corolla is bright golden yellow and nearly a centimeter wide at the mouth.
Potentilla flabellifolia is a species of cinquefoil known by the common names high mountain cinquefoil, fanleaf cinquefoil and fan-foil.
Silene aperta is a rare species of flowering plant in the pink family known by the common names naked catchfly and Tulare campion. It is endemic to Tulare County, California, where it is known only from the coniferous forests of the High Sierra Nevada. It is a perennial herb growing from a woody, branching caudex sending up several erect stems up to about 60 centimeters tall. The lower leaves are linear in shape, up to 12 centimeters long but less than one wide. Leaves higher on the stem are smaller. The flower has a hairy, tubular calyx of fused sepals with ten veins. The calyx is open at the top, revealing five white or yellow-green petals each 1 to 2 centimeters long.
Silene bridgesii is a species of flowering plant in the pink family known by the common name Bridges' catchfly. It is native to California, where it can be found throughout the Sierra Nevada and the southern reaches of the Cascade Range to the north, its distribution possibly extending into Oregon. It grows in mountain forests and woodlands. It is a perennial herb growing from a taproot and woody caudex unit, its stem decumbent or growing erect to half a meter or more in height. It is hairy, the upper hairs glandular, making the plant sticky in texture. The lower leaves are widely lance-shaped, up to 8 centimeters long by 1.5 wide. Upper leaves are smaller. Flowers occur in a terminal cyme at the top of the stem, as well as in some of the leaf axils, where they nod or hang like a bell. Each has a hairy, glandular calyx of fused sepals with ten veins. The calyx is open at the tip, revealing five white, pinkish, or greenish petals each with two rectangular lobes at the tip. The very long stamens and three styles protrude from the flower's center.
Silene lemmonii is a species of flowering plant in the pink family known by the common name Lemmon's catchfly.
Silene nuda is a species of flowering plant in the pink family known by the common names western fringed catchfly and sticky catchfly.
Silene occidentalis is a species of flowering plant in the pink family known by the common names western catchfly and western campion.
Silene oregana is a species of flowering plant in the pink family known by the common names Oregon silene, Oregon campion and Oregon catchfly. It is native to the western United States, including the Great Basin, where it grows in habitat such as sagebrush and forests. It is a perennial herb growing from a woody caudex and taproot, sending up an erect, mostly unbranched stem which may be 70 centimeters tall. The lance-shaped leaves are up to 8 centimeters long around the caudex, and shorter farther up the stem. Flowers occur in a terminal cyme and sometimes in leaf axils. Each flower is encapsulated in a hairy, glandular calyx of fused sepals. The five petals are creamy white or pink-tinged in color and each has four to six long, fringelike lobes at the tip.
Wyethia angustifolia is a species of flowering plant in the aster family known by the common names California compassplant and narrowleaf mule's ears. It is native to the west coast of the United States from Washington to California, where it grows in grassland, meadows, and other open habitat. It is a perennial herb growing from a tough taproot and caudex unit and producing a stem 30 to 90 centimeters tall. The leaves have lance-shaped blades up to 50 centimeters tall. The inflorescence produces one or more large sunflower-like flower heads at the top of the hairy stem. The head has narrow, hairy phyllaries at the base. It contains up to 21 yellow ray florets each up to 4.5 centimeters long and many yellow disc florets. The fruit is an achene which may be nearly 2 centimeters long including its pappus.
Physaria kingii is a species of flowering plant in the mustard family known by the common name King bladderpod. It is native to western North America from Utah to Baja California, where it grows in dry and rocky habitat, such as deserts and adjacent mountain slopes. This is a perennial herb growing a small, hairy stem from a caudex. The leaves form a patch or rosette around the caudex, each up to 6 centimeters long and round, oval, diamond, or spoonlike in shape. The inflorescence is an erect or mostly upright raceme of bright yellow mustardlike flowers. The fruit is a hairy capsule under a centimeter long suspended on a short, often curvy pedicel.
