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Montana Field Guide

Montana Field Guides

Henderson's Wavewing - Cymopterus longilobus

Status Under Review

Global Rank: GNR
State Rank: S3

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

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General Description
Acaulescent with a woody, branched caudex covered in stiff, old petioles. Herbage glabrous. Leaves with long petioles, swollen basally; blades 2–10 cm long, linear-lanceolate in outline, bipinnate; ultimate segments linear, well-separated, 2–5 mm long. Umbels solitary; peduncles 2–30 cm long, erect; rays unequal, 5–30 mm long; involucral and involucel bracts linear, 5–10 mm long. Flowers yellow; sepals scarious-margined, ca. 1 mm long. Mericarps glabrous, elliptic, 3–6 mm long; ribs nearly plane, 1–1.5 mm wide; oil tubes 1 to 5 per interval (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Beaverhead and Carbon counties; MT south to NV, UT and NM (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Talus and stony soil of open slopes; subalpine 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:
Henderson's Wavewing — Cymopterus longilobus.  Montana Field Guide.  .  Retrieved on , from