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Montana Field Guide

Montana Field Guides

Tweedy's Ivesia - Ivesia tweedyi

Status Under Review
Native Species

Global Rank: G4
State Rank: SNR
C-value:


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Stems 5–20 cm. Leaves basal and few cauline; the blade glabrous to glandular-puberulent, 3–8 cm long; leaflets obovate, deeply lobed, 4–8 mm long. Flowers: hypanthium cup-shaped, 2–3 mm long; sepals 2–4 mm long; petals barely shorter than the sepals. Fruit ca. 2 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Endemic to eastern WA, ID and MT. Known from Mineral County (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(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 rock outcrops, grasslands; subalpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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Citation for data on this website:
Tweedy's Ivesia — Ivesia tweedyi.  Montana Field Guide.  .  Retrieved on , from