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Montana Field Guide

Montana Field Guides

Oval-leaved Buckwheat - Eriogonum ovalifolium


Global Rank: G5
State Rank: S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

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General Description
Perennial, often forming small cushions from a tightly-branched caudex. Flowering stems erect to ascending, tomentose, 2–35 cm, clothed in old leaves at the base. Leaves basal, long-petiolate; the blade 2–20 mm long, oblanceolate to orbicular, tomentose. Inflorescence capitate to rarely umbellate, bracts scale-like; involucres 1 to many per cluster, tomentose, 2–4 mm long with 5 erect lobes. Flowers 2–5 mm long, white, yellow, or rose, cup-shaped; tepals glabrous, the outer much broader than the inner; stamens not exserted. Achenes 2–3 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Plants in MT are varieties ovalifolium, depressum Blank., ochroleucum(Small ex Rydb.) M.E. Peck, pansum Reveal, or purpureum (Nutt.) Dur.

Species Range
Present
 


Range Comments
BC and AB south to CA, AZ,and NM (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 105

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Stony soil of grasslands, steppe, outcrops, exposed ridges and slopes (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Oval-leaved Buckwheat — Eriogonum ovalifolium.  Montana Field Guide.  .  Retrieved on , from