Sidalcea oregana var. calva, the Wenatchee Mountains checker-mallow, is a very rare flowering plant variety that occurs only in five locations in the Wenatchee Mountains of Chelan County, Washington, United States. The plant has been placed on the Endangered species list. It is the rarest known plant in Washington state.
Cercocarpus ledifolius is a North American species of mountain mahogany known by the common name curl-leaf mountain mahogany. It is widespread across much of the Western United States as well as Baja California in Mexico. It can be found at elevations ranging from 600 to 3,000 m elevation, with the preferred altitude varying depending on the region. It prefers shallow, well-drained soils with a sandy or grainy consistency, and is generally found in areas which receive low annual precipitation (15–26 cm). This makes it common on low mountains and slopes, where it grows in scattered groves among other drought-resistant species such as Pinyon Pines, Junipers and Sagebrush ecosystems.
Geranium bicknellii is a species of geranium known by the common names Bicknell's cranesbill and northern cranesbill. It is native to much of the northern half of North America, where it can be found in a number of forest and woodland habitats. This is an annual or biennial herb which grows hairy stems up to about half a meter long. It may be erect or lie near the ground. Each leaf is several centimeters long and wide and is divided into several lobes, each of which may have smaller lobes or teeth. Flowers grow singly or in pairs and have pointed sepals and small lavender petals, each with a notch in the tip. The fruit has a rounded body with a long, straight style about 2 centimeters in length and tipped with a small beak.
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.
Cineraria deltoidea is a perennial flowering plant of the family Asteraceae and the genus Cineraria which is also the closest known relative of the giant Dendrosenecio of East Africa.
Ceanothus spinosus, with the common names greenbark and redheart, is a species of Ceanothus. It is native to southern California and northern Baja California, where it grows in the scrub and chaparral of the coastal mountain ranges.
Ceanothus oliganthus is a species of shrub in the family Rhamnaceae known by the common name hairy ceanothus or hairy-leaf ceanothus.
Hesperevax acaulis is a species of flowering plant in the family Asteraceae known by the common name stemless dwarf cudweed. It is native to California and Oregon where it grows in many types of mountain, valley, and coastal habitats, including areas recently affected by wildfire. This petite woolly annual forms a small bunch on the ground. Despite its common name it sometimes has a stem a few centimeters long. The wool-coated leaves appear in pairs or clusters, each leaf measuring a few millimeters to three centimeters long. In the center of the leaf array is the inflorescence, which is a single flower head or tightly packed cluster of several heads, each just a few millimeters wide. The flower head contains several tiny disc florets.
Microseris acuminata is a species of flowering plant in the family Asteraceae known by the common name Sierra foothill silverpuffs. It is native to the Central Valley of California and the mountain ranges, including the Sierra Nevada, surrounding it. There is a disjunct occurrence in Jackson County, Oregon. The plant grows in grassy habitat, woodlands, and sometimes the edges of vernal pools.
Microseris elegans is a species of flowering plant in the family Asteraceae known by the common name elegant silverpuffs. It is native to California and Baja California, where it grows in the valleys, foothills, and coastal mountain ranges. Its habitat includes grassland, sometimes near vernal pools, and especially clay soils.
Krigia is a genus of North American flowering plants in the family Asteraceae. Plants of the genus are known generally as dwarf dandelions or dwarfdandelions.
Pogogyne serpylloides is a species of flowering plant in the mint family known by the common names thymeleaf mesamint and thymeleaf beardstyle. It is endemic to central California, where it grows in grassy habitat in coastal and inland mountain ranges and foothills. It is a petite aromatic annual herb growing decumbent or upright, often reaching no more than a centimeter in height even when erect in form, sometimes larger. The slender stem is sometimes branched. The inflorescence is a series of rounded, headlike clusters, with occasional single flowers emerging at leaf axils. The tiny tubular flower is 2 to 5 millimeters long and has a lobed, lipped mouth. It is lavender in color, sometimes with faint white markings in the mouth.
Rosa bridgesii is a species of rose known by the common names pygmy rose and Sierran dwarf rose. It is native to California, where it grows in the forests of the Sierra Nevada and surrounding mountains and foothills. It may also occur in Oregon.
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 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.
Silene occidentalis is a species of flowering plant in the family Caryophyllaceae known by the common names western catchfly and western campion.
Stellaria obtusa is a species of flowering plant in the family Caryophyllaceae known by the common names Rocky Mountain chickweed, blunt-sepaled starwort, and obtuse starwort. It is native to western North America, from British Columbia and Alberta to California to Colorado, where it grows in moist areas in forests and on mountain slopes.
Wyethia mollis is a species of flowering plant in the family Asteraceae known by the common name woolly mule's ears. The plant is hairy to woolly in texture, sometimes losing its hairs with age.
Castilleja septentrionalis is a species of Indian paintbrush known by several common names, including northern paintbrush, sulfur paintbrush, and pale painted cup. There is taxonomic disagreement as to if it is one species widely distributed in mountain and alpine environments of North America or if there is a second species, Castilleja sulphurea, in the Rocky Mountains.
Astragalus proximus is a species of flowering plant in the legume family known by the common name Aztec milkvetch. It is native to southern Colorado and northern New Mexico in the United States.
