Burke: Physaria geyeri

	Physaria geyeri
	Geyer's twinpod
Habit	Gray-stellate perennial herb from a branched crown, the many, simple stems erect to decumbent, 1-2 dm. tall.
Leaves	Basal leaves 3-6 cm. long, the blades entire, obovate to nearly round, narrowed abruptly to broad petioles 2-3 times as long; cauline leaves alternate, several, much reduced, oblanceolate.
Flowers	Inflorescence of many-flowered, elongate, bractless racemes; pedicles 6-20 mm. long, ascending to reflexed, somewhat S-shaped; sepals 4, purplish, stellate, the outer pair slightly saccate at the base; petals 4, yellow, spatulate, 5-11 mm. long; stamens 6; style 4-7 mm. long.
Fruits	Silicles strongly inflated, obcompressed, obtuse to truncate at the base, 5-7 mm. long and slightly wider, with a broad, open, apical sinus about 2 mm. deep.

	Physaria geyeri
Flowering time	May-July
Habitat	Gravelly stream banks and hillsides.
Distribution	Occurring east of the Cascades crest in eastern Washington; eastern Washington to eastern Oregon, east to Idaho and Montana. [WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	Not of concern
Sibling taxa	P. alpestris, P. didymocarpa, P. douglasii, P. occidentalis, P. oregona
Subordinate taxa	P. geyeri ssp. geyeri
Web links	Local floras: OR, WA Local Web sites: 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

Physaria geyeri

Geyer's twinpod

Habit

Gray-stellate perennial herb from a branched crown, the many, simple stems erect to decumbent, 1-2 dm. tall.

Leaves

Basal leaves 3-6 cm. long, the blades entire, obovate to nearly round, narrowed abruptly to broad petioles 2-3 times as long;

cauline leaves alternate, several, much reduced, oblanceolate.

Flowers

Inflorescence of many-flowered, elongate, bractless racemes; pedicles 6-20 mm. long, ascending to reflexed, somewhat S-shaped;

sepals 4, purplish, stellate, the outer pair slightly saccate at the base;

petals 4, yellow, spatulate, 5-11 mm. long;

stamens 6;

style 4-7 mm. long.

Fruits

Silicles strongly inflated, obcompressed, obtuse to truncate at the base, 5-7 mm. long and slightly wider, with a broad, open, apical sinus about 2 mm. deep.