Hesperocyparis bakeri, previously known Cupressus bakeri, with the common names Baker cypress, Modoc cypress, or Siskiyou cypress, is a rare species of western cypress tree endemic to a small area across far northern California and extreme southwestern Oregon, in the western United States.
Trichostema lanceolatum, with the common names vinegarweed and camphor weed, is an annual flowering herb of the mint family native to western North America.
Pseudotrillium is a monotypic genus of flowering plant in the family Melanthiaceae. Its sole species, Pseudotrillium rivale, is commonly known as the brook wakerobin. It is endemic to the Siskiyou Mountains of southern Oregon and northern California. The Latin specific epithet rivale means “growing by streams”, with reference to a preferred habitat.
Trichostema lanatum, the woolly bluecurls, is a small evergreen shrub or sub-shrub native to arid coastal chaparral regions of California and the northern parts of Baja California.
Trichostema is a genus of flowering plants in the family Lamiaceae, which are aromatic herbs or subshrubs. These plants are native to North America. Many plant of this genus which have whorls of small blue flowers are called by the common name bluecurls.
Iris chrysophylla, the yellowleaf iris, is a wildflower which ranges from midwestern and southern Oregon west of the Cascades and south to the crest of the Siskiyou Mountains in northern California. The yellowleaf iris grows up to 5,500 feet (1,700 m) elevation, most commonly in open, coniferous forests.
Allium cratericola is a species of wild onion known by the common name Cascade onion. It is endemic to California, where is an uncommon member of the flora in several of the state's mountain ranges, including the northern and southern California Coast Ranges, the western Transverse Ranges, Klamath Mountains, and the Sierra Nevada foothills. Its range covers much of the state, from Riverside County to Siskiyou County.
Trichostema dichotomum, commonly known as forked bluecurls, is a flowering plant in the mint family (Lamiaceae). The plant is found in the Midwestern and Eastern United States, Eastern Canada, and the Bahamas.
Monardella purpurea is a species of flowering plant in the mint family known by the common names Siskiyou monardella and serpentine monardella.
Phacelia dalesiana is a species of flowering plants in the borage family endemic to California. It is commonly known as Scott Mountain phacelia or Howell's phacelia. Under the synonym Howellanthus dalesianus, it was considered to be the only species in the monotypic genus Howellanthus.
Tauschia howellii is a rare species of flowering plant in the carrot family known by the common names Howell's umbrellawort and Howell's tauschia. It is endemic to the Klamath Mountains of far southern Oregon and far northern California, where it is limited to nine occurrences in the Siskiyou Mountains. It grows in mountain forests on gravelly granite soils, often among stands of Shasta red fir. Despite its rarity it is stable and not considered very endangered. It is a perennial herb growing 30 to 80 centimeters tall. It is hairless in texture. The thick leaves have blades which are divided into leaflets large, sharp teeth and edges curved up, and borne on long petioles. The short inflorescence is a compound umbel of yellow flowers on a few short rays. The fruit is oblong, ribbed, and just a few millimeters long.
Trichostema austromontanum is a species of flowering plant in the mint family known by the common name San Jacinto bluecurls. It is native to California from the mountains east of the Sierra Nevada to the Transverse Ranges and Peninsular Ranges, its distribution extending south into Baja California. It occurs in wet mountain meadows and on the shores of lakes. It is an annual herb approaching half a meter in maximum height, its aromatic herbage coated in glandular and nonglandular hairs. The elongated or lance-shaped leaves are 2 to 5 centimeters long. The inflorescence is a series of clusters of flowers located at each leaf pair. Each flower has a hairy calyx of pointed sepals and a tubular, lipped purple corolla. The four stamens are long and curved.
Trichostema laxum is a species of flowering plant in the mint family, known by the common name turpentine weed from the foliage's scent.
Trichostema micranthum is a species of flowering plant in the mint family, known by the common name smallflower bluecurls.
Trichostema oblongum, known by the common names oblong bluecurls and mountain bluecurls, is a species of flowering plant in the mint family.
Trichostema ovatum is an uncommon species of flowering plant in the mint family known by the common name San Joaquin bluecurls.
Trichostema parishii is a species of flowering plant in the mint family known by the common name Parish's bluecurls.
Trichostema rubisepalum is a species of flowering plant in the mint family known by the common name Hernandez's bluecurls.
Trichostema ruygtii, with the common name Napa bluecurls, is a species of flowering plant in the mint family. It was first described to science in 2006.
Trichostema arizonicum, the Arizona bluecurls, is a perennial plant in the mint family (Lamiaceae) native to the Southwestern United States and northwestern Mexico. It has striking curling flowers and can often be found along road sides. The genus name means "hair stems" in reference to the graceful stamens that curl around to dab pollen on the backs of insect pollinators.
