Orthocarpus cuspidatus is a species of flowering plant in the broomrape family known by the common names Copeland's owl's clover, Siskiyou Mountains orthocarpus, and toothed owl's-clover. It is native to mountain and plateau habitat in Oregon, California, and Nevada. It is an annual herb producing a slender, glandular, hairy, purple-green stem up to about 40 centimeters tall. The narrow leaves are up to 5 centimeters long, the upper ones deeply divided into three linear lobes. The inflorescence is a dense cylindrical spike of wide, oval green bracts with pinkish points. The flowers emerge from between the bracts. Each purple-pink flower is fuzzy in texture and club-shaped, the lower lip an expanded pouch and the upper lip a narrow, straight beak.
Lepechinia fragrans is a flowering herbaceous shrub known by the common names island pitchersage and fragrant pitchersage. It is a member of the Lamiaceae, or mint family, but like other Lepechinia, the flowers are borne in racemes instead of in mintlike whorls.
Monardella odoratissima is a perennial flowering plant which grows in mountain forests and sagebrush scrub. It is a member of the mint family (Lamiaceae). It has the minty odor characteristic of this family.
Triphysaria is a genus of five plants in the family Orobanchaceae which are known generally as owl's-clovers. This genus is closely related to the genera Castilleja and Orthocarpus. Triphysaria are native to western North America, including a species endemic to California.
Castilleja angustifolia is a species of wildflower known by the common names northwestern Indian paintbrush and desert Indian paintbrush. It is an herbaceous perennial native to the desert, scrublands, and woodlands of western North America. It grows in hot sandy soils and rock crevices in dry conditions.
Castilleja ambigua is a species of Indian paintbrush known by the common name Johnny-nip. It is native to western North America from British Columbia to California, where it is most common along the coast in salt marshes and scrub.
Acanthomintha obovata is a species of flowering plant in the mint family known by the common name San Benito thornmint. It is endemic to California, where it grows in the woodland and chaparral of the coastal mountain ranges in the central part of the state.
Nemacladus interior is a species of flowering plant in the bellflower family known by the common name Sierra threadplant. It is native to the Sierra Nevada of California, and it is known from Oregon as well. It grows in mountain forest habitat. It is an annual herb producing a stiff upright purple-brown stem up to about 25 centimeters tall. Small toothed oval leaves 1 to 2 centimeters long occur at the base of the plant. The inflorescence is a zigzagging series of branches bearing occasional flowers on thin pedicels. There is a single tiny bract at the base of each pedicel. The flower is a few millimeters long. It has five triangular sepals and five corolla lobes, three lobes on the upper lip and two on the lower. The corolla is white to pale purple or pink with a thin red band and yellow spot at the base of each lobe.
Orthocarpus bracteosus is a species of flowering plant in the broomrape family known by the common name rosy owl's-clover. It is native to western North America from British Columbia to northern California, where it grows in moist mountain habitat, such as meadows.
Orthocarpus imbricatus is a species of flowering plant in the broomrape family known by the common name mountain owl's-clover. It is native to western North America from British Columbia to northern California, where it grows in meadows and other mountain habitat.
Orthocarpus luteus is a species of flowering plant in the broomrape family known by the common name yellow owl's-clover. It is native to much of western and central North America, where it grows in many types of plateau, grassland, and mountain habitat.
Orthocarpus pachystachyus is a rare species of flowering plant in the broomrape family known by the common names Shasta owl's-clover and Shasta orthocarpus. It is endemic to central Siskiyou County, California, where it is so rarely seen it was thought to be extinct until 1996, when eight individuals were located. The plant grows in an isolated wilderness but since it apparently only occurs on one single hillside it is considered very vulnerable to extinction.
Pedicularis howellii is an uncommon species of flowering plant in the family Orobanchaceae known by the common name Howell's lousewort. It is endemic to the Siskiyou Mountains of the Klamath Range in southern Oregon and northern California, where it grows on the edges of coniferous forests. This is a perennial herb producing one or more stems up to 45 centimetres (18 in) tall from a long caudex. The leaves are up to 20 centimetres (8 in) long, lance-shaped, and divided into many toothed oval lobes; those higher on the stem may be unlobed. The basal leaves fall away early. The inflorescence is a small raceme of flowers occupying the top of the stem. Each white to light purple flower is up to one centimetre long and is sickle-shaped, with a curved beak-like upper lip and a three-lobed lower lip which may be tucked into the hairy mass of sepals. The plant is pollinated by bumblebees including Bombus mixtus. Between the flowers are hairy to woolly triangular bracts. The fruit is a capsule just under a centimeter long containing seeds with netted surfaces.
Streptanthus fenestratus is an uncommon species of flowering plant in the mustard family known by the common name Tehipite Valley jewelflower.
Trifolium barbigerum is a species of clover known by the common name bearded clover.
Trifolium obtusiflorum is a species of clover known by the common name clammy clover. It is native to California in the Peninsular, Transverse, Sierra Nevada, and the California Coast Ranges and Cascade Range into southwestern Oregon.
Triphysaria eriantha is a species of flowering plant in the family Orobanchaceae, known by the common names johnny-tuck and butter-and-eggs.
Triphysaria floribunda is a rare species of flowering plant in the family Orobanchaceae known by the common name San Francisco owl's-clover. It is endemic to California, where it is known only from the San Francisco Bay Area. It is limited to coastal regions of Marin, San Francisco, and San Mateo Counties, where it occurs in coastal prairie habitats, sometimes on serpentine soils.
Triphysaria micrantha is a species of flowering plant in the family Orobanchaceae known by the common name purplebeak owl's-clover. It is endemic to California, where it is known from the grasslands of the Central Valley and the foothills to the east and west. It an annual herb producing a hairy, glandular, purple-colored stem up to about 15 centimeters in maximum height. Like many species in its family it is a facultative root parasite on other plants, attaching to their roots via haustoria to tap nutrients. Its greenish to red-purple leaves are up to 2.5 centimeters long and are sometimes divided into a few narrow, pointed lobes. The inflorescence is a spike of flowers a few centimeters in length. Each flower has a narrow purple upper lip and a wide lower lip which is divided into yellowish or white pouches, often with purple markings on the lower parts.
Triphysaria pusilla is a species of flowering plant in the family Orobanchaceae known by the common name dwarf owl's-clover.
Triphysaria versicolor is a species of flowering plant in the family Orobanchaceae known by the common name yellowbeak owl's-clover.
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