UW Burke Herbarium species comparison

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Eriogonum douglasii

Eriogonum maculatum

Douglas's buckwheat

spotted buckwheat
Habit Low, matted subshrubs 5 to 15 cm. in height.
Leaves

Numerous, linear to linear-spatulate, 5 to 20 mm. long, gray- or white-woolly on both surfaces, especially the lower.

Flowers

Flowering stems 5-10 cm. long, with a whorl of bracts at mid-length, and generally a single, terminal cup-shaped involucre of 6-10 oblong, white-wooly lobes about 3 mm. long. Flower buds blood-red, opening to cream-colored or slightly pinkish or yellowish tepals, 6-8 mm. long with a stipe-like base 1-2 mm. long

Eriogonum douglasii

Eriogonum maculatum
Identification notes Separate from the similar Eriogonum thymoides by the involucre lobes; E. thymoides has erect lobes, E. douglasii, reflexed to spreading lobes.
Flowering time May-July May-June
Habitat Sagebrush or juniper flats to ponderosa pine forests, often on lithosol. Sand, gravel or clay slopes and flats, grassland, and shrub-steppe.
Distribution
Occurring east of the Cascades crest in Washington, chiefly in the central region; Washington to California, east to Idaho and Nevada.
[WildflowerSearch map]
[BONAP county map]
Collected once (1884) in Yakima County in Washington and now considered extirpated; southeastern Oregon to southwestern Idaho, south to Baja California, Mexioca and east to New Mexico.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Presumed extirpated in Washington (WANHP)
Sibling taxa
E. baileyi, E. cernuum, E. codium, E. compositum, 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. marifolium, E. microtheca, E. niveum, E. nudum, E. ovalifolium, E. pyrolifolium, E. sphaerocephalum, E. strictum, E. thymoides, E. umbellatum, E. vimineum
Subordinate taxa
E. douglasii var. douglasii
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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