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.
Minuartia is a genus of flowering plants commonly known as sandworts in the family Caryophyllaceae.
Allium falcifolium is a North American species of wild onion known by the common name scytheleaf onion or coast flatstem onion. It is native to northern California and southern Oregon, where it grows in heavy, rocky soils, especially serpentine soils.
Arabis aculeolata is a species of flowering plant in the mustard family known by the common name Waldo rockcress.
Diplacus jepsonii, formerly classified as Mimulus nanus var. jepsonii, is a species of monkeyflower known by the common name Jepson's monkeyflower.
Sabulina californica, commonly known as California sandwort, is a species of flowering plant in the family Caryophyllaceae.
Minuartia decumbens is a rare species of flowering plant in the family Caryophyllaceae known by the common names The Lassics sandwort and Lassicus stitchwort.
Minuartia douglasii is a species of flowering plant in the family Caryophyllaceae known by the common name Douglas' stitchwort.
Minuartia 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.
Minuartia rosei is an uncommon species of flowering plant in the family Caryophyllaceae known by the common names peanut sandwort and peanut stitchwort.
Minuartia 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.
Minuartia stolonifera is a rare species of flowering plant in the pink family known by the common names Scott Mountain sandwort and stolon sandwort.
Minuartia 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.
Silene serpentinicola is a rare species of flowering plant in the family Caryophyllaceae known by the common name serpentine Indian pink and serpentine catchfly.
Stellaria calycantha is a species of flowering plant in the family Caryophyllaceae known by the common name northern starwort. It is native to western North America from Alaska and northwestern Canada to California and New Mexico, as well as eastern Russia. It occurs in subalpine and alpine climates, in many types of moist, shady habitats. It is a rhizomatous perennial herb producing a prostrate to erect stem up to 25 centimeters long, taking a clumpy form. The thin oval leaves have smooth edges and pointed tips, and measure up to 2.5 centimeters in length. The inflorescence bears one or more flowers, each on a long pedicel. Each flower has five pointed green sepals, and some flowers have up to five deeply lobed white petals.
Trichostema laxum is a species of flowering plant in the mint family, known by the common name turpentine weed from the foliage's scent.
Minuartia cumberlandensis is a rare species of flowering plant in the pink family known by the common names Cumberland stitchwort and Cumberland sandwort. It is endemic to the Cumberland Plateau near the Big South Fork of the Cumberland River in Tennessee and Kentucky. This rare plant is found only in cool sandstone rock shelters, on the moist sandy cave floors behind the drip line. There are 27 occurrences in Tennessee and one in Kentucky. The plant is a federally listed endangered species.
Calochortus umpquaensis is a species of flowering plant in the lily family known by the common name Umpqua mariposa lily. It is endemic to Oregon in the United States, where it is mainly limited to the region of the Klamath Mountains on the Little River in Douglas County, in particular the Watson and Ace Williams Mountains. The flower has also been found at a single location in each of Josephine and Jackson Counties.
