Burke: Eriogonum gordonii vs. Eriogonum vimineum

	Eriogonum gordonii	Eriogonum vimineum
		broom buckwheat
Habit		Upright annual 5-50 cm. tall with a single stem topped by a freely-branched inflorescence, and with numerous, petiolate leaves in a whorl a short distance above the base.
Leaves		Sub-basal, the blade oval to broadly elliptic, 5-30 mm. long, gray-woolly beneath and gray-green above, the slender petiole 1-3 times as long as the blade.
Flowers		Inflorescence freely-branched, with involucres 1 per node and sessile at the branch junctions and along the branches and on the branch tips, varying from cylindric and strongly ribbed up to 3 mm. long to cup-shaped and without ribs, 1.5-2 mm. long, and with the 5 lobes rounded and 1/5 the total length; tepals 1.5-2.5 mm. long, narrowly cup-shaped, white, pink or yellow.
Fruits		Achene 3-angled.

	Eriogonum gordonii	Eriogonum vimineum
Flowering time		June-September
Habitat		Sagebrush deserts and dry ponderosa pine forest openings; tolerant of dry, disturbed conditions.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho and Nevada. [WildflowerSearch map] [BONAP county map]
Origin		Native
Conservation status		Not of concern
Sibling taxa	E. baileyi, E. cernuum, E. codium, E. compositum, E. douglasii, E. elatum, E. flavum, E. heracleoides, E. maculatum, E. marifolium, E. microtheca, E. niveum, E. nudum, E. ovalifolium, E. pyrolifolium, E. sphaerocephalum, E. strictum, E. thymoides, E. umbellatum, E. vimineum	E. baileyi, E. cernuum, E. codium, E. compositum, E. douglasii, E. elatum, E. flavum, E. heracleoides, E. maculatum, E. marifolium, E. microtheca, E. niveum, E. nudum, E. ovalifolium, E. pyrolifolium, E. sphaerocephalum, E. strictum, E. thymoides, E. umbellatum
Web links	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	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Eriogonum gordonii

Eriogonum vimineum

broom buckwheat

Habit

Upright annual 5-50 cm. tall with a single stem topped by a freely-branched inflorescence, and with numerous, petiolate leaves in a whorl a short distance above the base.

Leaves

Sub-basal, the blade oval to broadly elliptic, 5-30 mm. long, gray-woolly beneath and gray-green above, the slender petiole 1-3 times as long as the blade.

Flowers

Inflorescence freely-branched, with involucres 1 per node and sessile at the branch junctions and along the branches and on the branch tips, varying from cylindric and strongly ribbed up to 3 mm. long to cup-shaped and without ribs, 1.5-2 mm. long, and with the 5 lobes rounded and 1/5 the total length;

tepals 1.5-2.5 mm. long, narrowly cup-shaped, white, pink or yellow.

Fruits

Achene 3-angled.