UW Burke Herbarium species comparison

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Eriogonum jamesii

Eriogonum marifolium

marum-leaf wild buckwheat, mountain buckwheat
Habit Dioecious perennial with a strong taproot and trailing to weakly ascending branches up to 3 dm. long.
Leaves

Leaves alternate, numerous, 2-4 cm. long, the blade rhombic to obovate-oblanceolate, grayish-woolly beneath, tapered to a slender petiole.
Flowers

Inflorescence a 3- to 7-rayed umbel, from subcapitate to 5 cm. broad, subtended by a whorl of 3-7 linear-lanceolate bracts;

involucres broadly top-shaped, woolly, 3 mm. long, the 5 teeth 0.5 mm. long;

perianth pale to deep yellow, glabrous, 3 mm. long, with a stipitate base 0.5 mm. long;

filaments bearded on the lower half.
Fruits

Achene exceeding the perianth.

Eriogonum jamesii

Eriogonum marifolium
Flowering time June-August
Habitat Gravelly flats in lodgepole and ponderosa pine forests to alpine ridges and talus slopes.
Distribution
[WildflowerSearch map]
[BONAP county map]
Reported from east of the Cascades crest in Washington, but no specimens seen; central Washington to California, east to northwestern Nevada.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Review Group 1 in Washington (WANHP)
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. microtheca, E. niveum, E. nudum, E. ovalifolium, E. pyrolifolium, E. sphaerocephalum, E. strictum, E. thymoides, E. umbellatum, E. vimineum
Subordinate taxa
E. marifolium var. marifolium
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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