Burke: Psilocarphus brevissimus

	Psilocarphus brevissimus
	dwarf woolly-marbles
Habit	Small, woolly, monoecious annuals, usually prostrate and branching, the stems up to 10 cm. long.
Leaves	Leaves opposite, mostly lance-oblong to lance-linear, 5-25 mm. long and 2-5 mm. wide, usually well-surpassing the heads.
Flowers	: Pistillate flowers 8-80 in each head, the corolla filiform-tubular, each enclosed by a saccate, woolly bract about 3 mm. long attached to the receptacle; receptacle lobed, each lobe bearing a cluster of as few staminate flowers; involucre none, but the heads subtended by several foliage leaves; pappus none; style off-set.
Fruits	Achenes obliquely lanceolate, flattened, 1.0-1.9 mm. long.

	Psilocarphus brevissimus
Flowering time	May-July
Habitat	Dried beds of vernal pools.
Distribution	Occurring east of the Cascades crest in Washington; British Columbia to California, east to the northern Great Plains and Rocky Mountains. [WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	Not of concern
Sibling taxa	P. elatior, P. oregonus, P. tenellus
Subordinate taxa	P. brevissimus var. brevissimus
Web links	Local floras: BC, CA, OR, 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

Psilocarphus brevissimus

dwarf woolly-marbles

Habit

Small, woolly, monoecious annuals, usually prostrate and branching, the stems up to 10 cm. long.

Leaves

Leaves opposite, mostly lance-oblong to lance-linear, 5-25 mm. long and 2-5 mm. wide, usually well-surpassing the heads.

Flowers

: Pistillate flowers 8-80 in each head, the corolla filiform-tubular, each enclosed by a saccate, woolly bract about 3 mm. long attached to the receptacle;

receptacle lobed, each lobe bearing a cluster of as few staminate flowers;

involucre none, but the heads subtended by several foliage leaves;

pappus none;

style off-set.

Fruits

Achenes obliquely lanceolate, flattened, 1.0-1.9 mm. long.