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Montana Field Guide

Montana Field Guides

Slender Trefoil - Lotus tenuis

Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

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General Description
Taprooted perennial with a branched crown. Stems simple or branched, ascending to prostrate, 15–60 cm. Herbage glabrous to sparsely strigose. Leaves sessile, with 5 oblanceolate leaflets, 5–15 mm long. Inflorescence a long-pedunculate few-flowered umbel subtended by a trifoliolate bract. Flowers yellow, sometimes red-tinged; calyx tube 2–3 mm long with linear sepals 1–3 mm long; banner 6–10 mm long; keel 8–12 mm long. Legume 2–4 cm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Throughout much of N. America; native to Eurasia (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Roadsides, fields, pastures; plains, valleys. Introduced for forage and to stabilize road banks (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Slender Trefoil — Lotus tenuis.  Montana Field Guide.  .  Retrieved on , from