Burke: Lepidium oxycarpum

	Lepidium oxycarpum
	forked pepperwort, sharpfruited pepperwort
Habit	Slender, puberulent annual, the erect or spreading stems 0.5-2 dm. tall.
Leaves	Basal leaves 2-6 cm. long, pinnatifid into linear segments; cauline leaves alternate, mostly linear, entire, not auriculate.
Flowers	Inflorescence of open, bractless, elongate racemes; pedicles distinctly flattened, spreading, often S-shaped, slightly longer than the fruits; sepals 4, 0.5 mm. long; petals 4, white, up to 0.5 mm. long, often wanting; stamens 4; style lacking.
Fruits	Silicles ovate, 2.5-3.5 mm. long and 2-2.5 mm. broad, strongly obcompressed, glabrous, finely net-veined, deeply lobed, the 2 lobes nearly 1 mm. long.

	Lepidium oxycarpum
Flowering time	March-May
Habitat	Vernal pools and saline soils.
Distribution	Occurring west of the Cascades crest in the San Juan Islands; disjunct in southern Vancouver Island and adjacent San Juan Islands, otherwise occurring in central California. [WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	Endangered in Washington (WANHP)
Sibling taxa	L. appelianum, L. campestre, L. chalepense, L. densiflorum, L. dictyotum, L. didymum, L. draba, L. heterophyllum, L. latifolium, L. nitidum, L. oblongum, L. perfoliatum, L. ramosissimum, L. sativum, L. strictum, L. virginicum
Web links	Local floras: BC, CA, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Lepidium oxycarpum

forked pepperwort, sharpfruited pepperwort

Habit

Slender, puberulent annual, the erect or spreading stems 0.5-2 dm. tall.

Leaves

Basal leaves 2-6 cm. long, pinnatifid into linear segments;

cauline leaves alternate, mostly linear, entire, not auriculate.

Flowers

Inflorescence of open, bractless, elongate racemes; pedicles distinctly flattened, spreading, often S-shaped, slightly longer than the fruits;

sepals 4, 0.5 mm. long;

petals 4, white, up to 0.5 mm. long, often wanting;

stamens 4;

style lacking.

Fruits

Silicles ovate, 2.5-3.5 mm. long and 2-2.5 mm. broad, strongly obcompressed, glabrous, finely net-veined, deeply lobed, the 2 lobes nearly 1 mm. long.

Lepidium oxycarpum

Flowering time

March-May

Habitat

Vernal pools and saline soils.

Distribution

Occurring west of the Cascades crest in the San Juan Islands; disjunct in southern Vancouver Island and adjacent San Juan Islands, otherwise occurring in central California.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Endangered in Washington (WANHP)

Sibling taxa