Page author: Hattie Palmer
Draba reptans
Carolina whitlow-grass

Distribution: Occurring east of the Cascades crest in Washington; central British Columbia to California, east to the Atlantic Coast.

Habitat: Desert plains and foothills.

Flowers: March-May

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern


Annuals, generally bearing scapes; stems few, 0.3-1.2 dm, unbranched, varying levels of pubescence near base with 2-3-rayed trichomes, occasionally with simple or spurred trichomes, distal portions usually glabrous, seldom with sparse trichomes.


Basal leaves not in rosettes, petioles not clearly defined, blades nearly round to elliptic or narrower toward base, 0.5-2.3 cm long and 1.5-8 mm broad, margins entire, pubescence above and beneath; upper surface trichomes stalked, 2-4-rayed, 0.1-0.5 mm; lower surface trichomes simple, to 0.6-1 mm, with stalked, 2-rayed trichomes, 0.7 mm; cauline leaves generally absent, occasionally 1-3, sessile, blade nearly same as basal.


Inflorescence racemose, usually 5-12 flowered, ebracteate, no elongation in fruit; rachis rigid, generally glabrous rarely minutely pubescent; fruiting pedicels spreading to horizontally or ascending, straight, 2-7 mm, generally glabrous; sepals 4, oblong, 1.5-2.3 mm, pubescent with simple trichomes; petals 4 or rarely absent, white, narrower towards base, 2-4.5 mm long and 1-1.5 mm broad; anthers 0.4-0.5 mm, ovate.


Siliques 7-16 mm long and 1.2-2.3 mm broad, generally linear, plane, flattened; valves glabrous or pubescent with simple or antrorse trichomes, sometimes with less spurred or 2-rayed trichomes; ovaries containing 32-88 ovules; seeds oblong or ovoid, 0.5-0.8 mm long and 0.3-0.5 mm broad.

Accepted Name:
Draba reptans (Lam.) Fernald
Publication: Rhodora. 36: 368. 1934.

Synonyms & Misapplications:
Arabis reptans Lam.
Draba reptans (Lam.) Fernald ssp. stellifera (O.E. Schulz) Abrams [Abrams]
Draba reptans (Lam.) Fernald var. micrantha (Nutt.) Fernald [Abrams]
Draba reptans (Lam.) Fernald var. reptans [HC]
Draba reptans (Lam.) Fernald var. stellifera (O.E. Schulz) C.L. Hitchc. [HC]
Tomostima caroliniana (Walter) Raf.
Additional Resources:

PNW Herbaria: Specimen records of Draba reptans in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Draba reptans checklist entry.

OregonFlora: Draba reptans information.

E-Flora BC: Draba reptans atlas page.

CalPhotos: Draba reptans photos.

USDA Plants: Draba reptans information.

2 photographs:
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