Minuartia is a genus of flowering plants commonly known as sandworts in the family Caryophyllaceae.
Eriogonum alpinum is a species of wild buckwheat known by the common name Trinity buckwheat.
Arnica spathulata is a rare North American species of flowering plant in the family Asteraceae, known by the common name Klamath arnica. It is native to the Klamath Mountains of northwestern California and southwestern Oregon. It grows in woodland habitat, almost exclusively on serpentine soils.
Epilobium siskiyouense is a rare species of flowering plant in the evening primrose family known by the common names Siskiyou willowherb and Siskiyou fireweed.
Eriogonum siskiyouense is a rare species of wild buckwheat known by the common name Siskiyou buckwheat.
Harmonia stebbinsii is a species of flowering plant in the family Asteraceae known by the common name Stebbins' tarweed, or Stebbins' madia. It is endemic to northern California, where it is limited to the Klamath Mountains and adjacent slopes of the North Coast Ranges. It is a member of the serpentine soils plant community in these mountains, found at elevations of 1100–1600 meters. It is a rare annual herb producing a bristly stem up to about 25 centimeters tall studded with black resin glands. Its bristly leaves grow up to about 2 centimeters long and are mostly gathered near the base of the plant. The inflorescence is an array of flower heads lined with hairy, glandular, purple-tipped phyllaries. The head has a few yellow ray florets several millimeters long and yellow disc florets. The fruit is an achene tipped with a pappus.
Sabulina californica, commonly known as California sandwort, is a species of flowering plant in the family Caryophyllaceae.
Sabulina decumbens is a rare species of flowering plant in the family Caryophyllaceae known by the common names The Lassics sandwort and Lassicus stitchwort.
Sabulina howellii is an uncommon species of flowering plant in the family Caryophyllaceae known by the common names Howell's stitchwort and Howell's sandwort.
Minuartia nuttallii is a species of flowering plant in the family Caryophyllaceae known by the common names Nuttall's sandwort and brittle sandwort.
Sabulina pusilla is a species of flowering plant in the family Caryophyllaceae known by the common names annual sandwort and dwarf stitchwort.
Sabulina rosei is an uncommon species of flowering plant in the family Caryophyllaceae known by the common names peanut sandwort and peanut stitchwort.
Sabulina rubella is a species of flowering plant in the family Caryophyllaceae known by several common names, including beautiful sandwort, mountain sandwort, Arctic sandwort, and boreal stitchwort. It has a circumboreal distribution, occurring throughout the northernmost Northern Hemisphere from the Arctic Circle on the Arctic tundra into the alpine climates of mountainous areas in temperate Eurasia and North America. It grows in rocky, moist, often barren habitat, including gravelly, sparsely vegetated slopes with little organic matter. It is a calciphile, growing in calcareous substrates such as soils rich in decomposed limestone.
Sabulina stricta is a species of flowering plant in the family Caryophyllaceae known by the common names bog stitchwort, Teesdale sandwort and rock sandwort. It has a circumboreal distribution, occurring throughout much of the northernmost Northern Hemisphere from the lower Arctic into the alpine climates of mountainous areas in temperate Eurasia and North America. It grows in several types of habitat, including meadows, marshes, heath, beaches and bars, and arctic and alpine tundra.
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.
Packera macounii is a species of flowering plant in the aster family known by the common name Siskiyou Mountains ragwort. It is native to the west coast of North America from British Columbia to far northern California, where it grows in chaparral and mountain forests, often on serpentine soils.
Silene salmonacea is a rare, newly described species of flowering plant in the family Caryophyllaceae known by the common names Klamath Mountain catchfly and salmon-flowered catchfly. It is known only from Trinity County, California, where it grows in the forests of the southern Klamath Mountains. It is a member of the serpentine soils flora. It is a small perennial herb growing just a few centimeters tall. The spoon-shaped leaves are up to 3.5 centimeters long. The herbage is gray-green and lightly woolly in texture. Each flower has a tubular calyx of fused sepals lined with ten veins. There are five salmon pink petals, each with four lobes at the tip.
Erigeron maniopotamicus is a rare species of flowering plant in the family Asteraceae known by the common name Mad River fleabane. It is endemic to northwestern California, where it is known from only four locations in Humboldt and Trinity Counties.
Sabulina cismontana is a species of flowering plant in the family Caryophyllaceae known by the common name cismontane minuartia.
