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Glase, Terry

Eriogonum umbellatum var. majus

Eriogonum umbellatum Torr. var. majus Hook.

Subalpine Sulfur Flower, Sulfur-flower Buckwheat

Polygonaceae (Buckwheat Family)

Synonym(s): Eriogonum heracleoides var. subalpinum, Eriogonum subalpinum, Eriogonum umbellatum ssp. majus, Eriogonum umbellatum var. subalpinum

USDA Symbol: ERUMM

USDA Native Status: L48 (N), CAN (N)

From the Image Gallery

21 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Root Type: Tap
Inflorescence: Umbel
Fruit Type: Achene
Size Notes: Prostrate to spreading, compact mats, 10-45(-50) x 20-80(-100) cm. (Webref 3).
Leaf: Leaves in loose rosettes; blade oblanceolate to elliptic, (0.3-)0.5-2(-4) x 0.3-1(-1.5) cm, densely whitish-, greenish-, or reddish-lanate abaxially, glabrous and olive green to bright green adaxially, margins plane. (Webref 3).
Flower: Flowers 3-7(-9.5) mm; perianth cream. (Webref 3).

Bloom Information

Bloom Color: White
Bloom Time: Jun , Jul , Aug , Sep

Distribution

USA: CO , ID , MT , UT , WA , WY
Canada: AB , BC
Native Habitat: Sandy to gravelly flats, slopes and ridges, mixed grassland and sagebrush communities, oak, aspen, and montane to subalpine conifer woodlands, mountain meadows, or in alpine tundra. (Webref 3).

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Eriogonum umbellatum var. majus in USDA Plants
FNA: Find Eriogonum umbellatum var. majus in the Flora of North America (if available)
Google: Search Google for Eriogonum umbellatum var. majus

Metadata

Record Modified: 2023-05-01
Research By: Joseph A. Marcus

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