Species: Draba densifolia

Denseleaf Whitlow-grass
Species

    Dense-leaf Draba is a mat-forming perennial with leaf rosettes at the ends of numerous rootcrown branches, which are clothed with old leaf bases. The leafless stems are 3-15 mm high and arise from some of the rosettes. The fleshy, narrowly lance-shaped leaves are 2-12 mm long and have a prominent midvein and straight, unbranched hairs on the entire margins but are otherwise mostly glabrous. 3-15 stalked flowers are borne at the tops of the stems. Each flower has 4 separate sepals, 4 separate, yellow petals that are 2-6 mm long, and 4 long and 2 short stamens. The style is 0.5-1.0 mm long. The hairy, egg-shaped capsules are 2-7 mm long and are borne on erect or ascending stalks.

    Source: Encyclopedia of Life

    Kingdom
    Plantae
    Phylum
    Anthophyta
    Class

    Dicotyledoneae

    Order

    Capparales

    Family

    Brassicaceae

    Genus

    Draba

    Classification
    Other Global Common Names
    dense-leaved draba - denseleaf draba - drave à feuillage dense
    Informal Taxonomy
    Plants, Vascular - Flowering Plants - Mustard Family
    Formal Taxonomy
    Plantae - Anthophyta - Dicotyledoneae - Capparales - Brassicaceae - Draba - This species has been confused at times with D. PAYSONII (Gjaerevoll 1963, B63GJA01AKUS; Mulligan 1971, A71MUL02AKUS) and D. STENOPETALA (Hulten 1941, B41HUL01AKUS; Porsild 1966, B66POR01AKUS), but is now considered distinct from both of these ( Mulligan 1976, A76MUL01AKUS; Hulten 1968, B68HUL01AKUS).

    Dense-leaf Draba is a mat-forming perennial with leaf rosettes at the ends of numerous rootcrown branches, which are clothed with old leaf bases. The leafless stems are 3-15 mm high and arise from some of the rosettes. The fleshy, narrowly lance-shaped leaves are 2-12 mm long and have a prominent midvein and straight, unbranched hairs on the entire margins but are otherwise mostly glabrous. 3-15 stalked flowers are borne at the tops of the stems. Each flower has 4 separate sepals, 4 separate, yellow petals that are 2-6 mm long, and 4 long and 2 short stamens. The style is 0.5-1.0 mm long. The hairy, egg-shaped capsules are 2-7 mm long and are borne on erect or ascending stalks.

    Source: Encyclopedia of Life

    NatureServe Global Status Rank
    G5
    Global Status Last Reviewed
    1990-11-30
    Global Status Last Changed
    1991-08-05
    Conservation Status Map
    <img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.AB=S1&CA.BC=S2&CA.YT=S2&US.AK=S1&US.CA=SNR&US.ID=SNR&US.MT=S2&US.NV=SNR&US.OR=SNR&US.UT=S1&US.WA=SNR&US.WY=S2" alt="Conservation Status Map" style="width: 475px; height: auto;" />
    Global Range
    Southern British Columbia south to Sierran California, Oregon, Washington, Idaho, Montana, Wyoming, Utah. Widely spaced sites in central and eastern Alaska (Hitchcock 1973). Range in Hulten (1968) appears to be the four collections of Gjaerevoll (1963), three of which have been reidentified to other species.
    ELEMENT_GLOBAL.2.159845