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Montana Field Guide

Montana Field Guides

Payson's Whitlow-grass - Draba paysonii


Global Rank: G5
State Rank: SNR

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

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General Description
Mat-forming perennial. Stems simple, 1–5 cm. Basal leaves oblanceolate, 3–8 mm long, entire. Stem leaves lacking. Vestiture of dense, tangled, stalked branched hairs and long simple and branched hairs and cilia. Petals yellow, 3–4 mm long. Fruit ovate, ascending, 3–9 mm × 2–5 mm, pubescent with simple or forked hairs; style 0.4–1 mm long; lower pedicels 1–4 mm long. (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are varieties paysonii and treleasii (O.E. Schulz) C.L. Hitchc.

Species Range
Present
 


Range Comments
AK south to CA, UT and WY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 4

(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, sparsely vegetated soil of exposed ridges, slopes; montane to alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Payson's Whitlow-grass — Draba paysonii.  Montana Field Guide.  .  Retrieved on , from