Draba lonchocarpa
lancefruit draba, whitlow-wort

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Northwest Territories, south in Rocky mountains to Colorado.

Habitat: Alpine slopes, talus, and rocky outcroppings.

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Clump forming perennials, sometimes forming mats, branched at base, usually bearing scapes; stems generally 0.3-1.1 dm, unbranched, fully glabrous or pubescent, or pubescent PROXIMALLY; trichomes short-stalked, 08-12 rays, 0.08-0.3 mm.


Basal leaves form rosettes; petioles negligible, ciliate proximally with simple, 2-rayed trichomes; blades oblanceolate or obovate, 0.3-1.5 cm long and 1-3 mm broad, margins entire; upper surface pubescent with stellate, 8-12 rayed trichomes on short stalks; lower surface glabrous basally or with trichomes simple and long-stalked; cauline leaves absent or 1, sometimes 4, sessile, ovate or oblong, margins entire, pubescent as basal above and beneath.


Inflorescence racemose, 3-9 flowered, ebracteate or rarely lower 1-4 flowers with bracts, elongated in fruit; rachis usually somewhat flexuous in fruit, fully glabrous or pubescent or pubescent proximally; pedicels ascending, generally straight, 2-9 mm, glabrous or pubescent as stem; sepals 4, ovate, 1.5-2 mm long, pubescent with simple and short-stalked trichomes with 2-5 rays; petals 4, white, oblanceolate, 2-3.5 mm long and 1-1.5 mm broad; anthers 0.2-0.3 mm, ovate.


Siliques 6-15 mm long and 1-2 mm broad, generally linear or narrower toward base, plane or somewhat twisted, flattened; valves glabrous or minutely pubescent with simple, 2-rayed trichomes; ovaries generally contain 16-24 ovules; seeds ovoid, 0.7-1 mm long and 0.5-0.6 mm broad.

Accepted Name:
Draba lonchocarpa Rydb.
Publication: Mem. New York Bot. Gard. 1: 181. 1900.

Synonyms & Misapplications:
Draba lonchocarpa Rydb. var. denudata O.E. Schulz
Draba lonchocarpa Rydb. var. exigua O.E. Schulz [HC]
Draba lonchocarpa Rydb. var. lonchocarpa [HC, Rollins 1993a]
Draba lonchocarpa Rydb. var. semitonsa Payson & H. St. John
Draba lonchocarpa Rydb. var. vestita O.E. Schulz
Draba nivalis Lilj. ssp. lonchocarpa (Rydb.) Hultén
Draba nivalis Lilj. var. denudata (O.E. Schulz) C.L. Hitchc.
Draba nivalis Lilj. var. elongata S. Watson [Peck]
Draba nivalis Lilj. var. exigua (O.E. Schulz) C.L. Hitchc.
Additional Resources:

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

WA Flora Checklist: Draba lonchocarpa checklist entry.

E-Flora BC: Draba lonchocarpa atlas page.

CalPhotos: Draba lonchocarpa photos.

USDA Plants: Draba lonchocarpa information.

14 photographs:
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