Big-pod Mariposa Lily - Calochortus eurycarpus
(see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
Numerous recent reports from 7 counties. Tends to grow at high elevations, where its habitat is probably secure.
Stem 15–60 cm. Leaf blade linear to linear-lanceolate, 2–10 mm wide. Bracts 1–4 cm long. Flowers 1 to 3; sepals yellowish, 15–30 mm long; petals white or purplish, 3–4 cm long; inner surface sparsely hairy with a purple, flattened-hemispheric mark 4–6 mm above the fringed bullet-shaped gland; anthers oblong. Capsule ellipsoid, erect, 2–3 cm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Easily distinguished from C. bruneaunis and C. nuttallii by the arched, but not circular gland on the petals. Also, it has broader ovaries and fruits (orbicular to oblong) than either of these two species or its other local look-alike, C. gunnisonii (ovaries and fruits linear).
WA to MT south to NV and WY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Most often in subalpine meadows. In Montana, this species decends to the valleys. In either case, it prefers open areas and in Montana, it grows in well-drained soil.
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.