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Montana Field Guide

Montana Field Guides

Green-band Mariposa Lily - Calochortus macrocarpus

Status Under Review
Native Species

Global Rank: G5
State Rank: SU

Agency Status
MNPS Threat Rank:

External Links

General Description
Stem 20–50 cm. Leaf blade 1–2 mm wide, becoming inrolled. Bracts 3–10 cm long. Flowers 1 to 4; sepals 3–6 cm long, purple; petals purple, 3–5 cm long, apiculate; outer surface with a green midvein; inner surface with an ovate, yellow-fringed gland and a crescent-shaped purple mark above; anthers lanceoloid. Capsule spindle-shaped, erect, 4–5 cm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

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

Observations in Montana Natural Heritage Program Database
Number of Observations: 25

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



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


  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Cope, M.G. 1992. Distribution, habitat selection and survival of transplanted Columbian Sharp-tailed Grouse (Tympanuchus phasianellus columbianus) in the Tobacco Valley, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 60 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
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Citation for data on this website:
Green-band Mariposa Lily — Calochortus macrocarpus.  Montana Field Guide.  .  Retrieved on , from