| Arabis aculeolata | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Arabis |
| Species: | A. aculeolata |
| Binomial name | |
| Arabis aculeolata | |
Arabis aculeolata is a species of flowering plant in the mustard family known by the common name Waldo rockcress.
This is a perennial herb growing from a tough caudex covered in large hairs and the bases of leaves shed in previous seasons. It produces one or more erect stems to heights between 20 and 35 centimeters. The stems are dark in color, often reddish or purplish, and are coated in stiff white hairs. The leaves form a basal rosette about the caudex. They are oval-shaped, green in color and sparsely covered in coarse white hairs, up to 4 centimeters long, and with smooth or wavy edges. Leaves located farther up the stem are smaller. The flowers have dark purple sepals and lighter purple petals. The fruit is a long, thin, erect silique up to 6.5 centimeters long. The bloom period is between the months of April, May and June. [1] The leaves shape is elliptic, oblanceolate, and obovate. The leaf margin is entire. The inflorescence is raceme. The bloom color is pink or purple. [2]
Some plants in the 1940s seem intermediate between Arabis aculeolata and Arabis modesta . However, this hasn’t been confirmed. [3]
It is native to a small range in the mountains of southern Oregon, where it is an uncommon member of the serpentine soils flora. It is commonly found in the counties of Del Norte and Siskiyou in California. [1] It is found in the counties of Curry, Josephine, Jackson, and Douglas in Oregon. [4]
It has a global rank of G4, which means apparently secure. It has a S3 rank in Oregon, meaning vulnerable, and a S2 rank in California, meaning endangered. The global status was last reviewed in 1989. [5]
Its communities include, yellow pine forest, red fir forest, lodgepole pine forest, and mixed evergreen forest. [1] It is found in rocky hillsides and serpentine soils. It’s elevations are from 200-1800 meters. [3]
Eriophyllum lanatum, with the common names common woolly sunflower, Oregon sunshine and golden yarrow, is a common, widespread, North American plant in the family Asteraceae.
Iliamna bakeri is an uncommon species of flowering plant in the mallow family known by the common names Baker's globe mallow and Baker's wild hollyhock.
Astragalus bicristatus is a species of milkvetch known by the common names crested milkvetch and two-crested milkvetch. It is endemic to southern California, where it grows in the coniferous forests of the San Gabriel and San Bernardino Mountains of the Transverse Ranges.
Astragalus breweri is a species of milkvetch known by the common name Brewer's milkvetch. It is endemic to northern California, where it is found in several counties surrounding the north edge of the San Francisco Bay Area. It grows in open habitat in the North Coast Ranges, sometimes on serpentine soils.
Astragalus clevelandii is an uncommon species of milkvetch known by the common name Cleveland's milkvetch. It is endemic to northern California, where it grows in moist areas of the North Coast Ranges. It is a member of the serpentine soils flora.
Claytonia gypsophiloides, known by the common names gypsum springbeauty and Coast Range claytonia, is a species of wildflower in the family Montiaceae.
Claytonia saxosa, known by the common name Brandegee's springbeauty, is a species of wildflower in the family Montiaceae.
Arabis macdonaldiana is a species of flowering plant in the mustard family known by the common name MacDonald's rockcress. It is native to northern California and Oregon, where it grows on newly exposed, barren serpentine soils in openings in temperate coniferous forest habitat. It is a rare and endangered plant known from several sites in California and approximately two occurrences in Oregon, where it is threatened mainly by mining, particularly of nickel, which is one of several metals plentiful in the serpentine. On September 29, 1978, this was the second plant to be federally listed as an endangered species.
Eriogonum siskiyouense is a rare species of wild buckwheat known by the common name Siskiyou buckwheat.
Boechera breweri is a species of flowering plant in the family Brassicaceae known by the common name Brewer's rockcress.
Boechera constancei is a species of flowering plant in the mustard family known by the common name Constance's rockcress. It is endemic to California, where it is known only from the northern Sierra Nevada of Plumas and Sierra Counties. It is a member of the serpentine soils flora. This is a perennial herb growing from a branching, woody caudex. It produces one or more erect, hairless stems to maximum heights between 15 and 30 centimeters. The caudex is surrounded by a dense basal rosette of stiff, blue-green, lance-shaped leaves up to 3 centimeters long. There may be a few smaller leaves along the stem. The inflorescence produces 5 to 10 white mustardlike flowers with protruding stamens. The fruit is a hanging green silique 4 or 5 centimeters long which contains round, winged seeds.
Corethrogyne filaginifolia is a species of flowering plant in the daisy family known by the common names common sandaster and California aster.
Diplacus jepsonii, formerly classified as Mimulus nanus var. jepsonii, is a species of monkeyflower known by the common name Jepson's monkeyflower.
Monardella purpurea is a species of flowering plant in the mint family known by the common names Siskiyou monardella and serpentine monardella.
Pleuropogon refractus is a species of grass known by the common name nodding semaphoregrass. It is native to the west coast of North America from British Columbia to northern California, where it grows in moist meadows, marshy areas, and shady forests.
Packera clevelandii is an uncommon species of flowering plant in the aster family known by the common name Cleveland's ragwort. It is endemic to California, where it is known from only two small regions, a section of the North Coast Ranges around Napa County and a part of the Sierra Nevada foothills on the opposite side of the Sacramento Valley. The plant grows in shrubby chaparral on serpentine soils.
Silene hookeri is a species of flowering plant in the family Caryophyllaceae known by the common names Hooker's silene, Hooker's catchfly, Hooker's Indian pink, and Hooker's glandular campion.
Trichostema laxum is a species of flowering plant in the mint family, known by the common name turpentine weed from the foliage's scent.
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.
Boechera ophira is a rare species of flowering plant in the mustard family known by the common name Ophir Pass rockcress, or Ophir rockcress. It is endemic to Nevada in the United States, where it is known from Nye and Lander Counties. It grows on the crest of the Toiyabe Range.
Media related to Arabis aculeolata at Wikimedia Commons