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Montana Field Guide

Montana Field Guides

Geyer's Bulbil Onion - Allium geyeri var. tenerum

Native Species

Global Rank: G4G5T3T5
State Rank: S3?

Agency Status
MNPS Threat Rank:

External Links

General Description
Bulbs narrowly ovoid, often clustered; outer coat fibrous, net-like. Scapes terete, 10–50 cm. Leaves 2 or 3, channeled, 1–3 mm wide, persistent. Umbel hemispheric or narrower, with a mixture of flowers and ovoid bulbils 3–6 mm long; pedicels 5–12 mm long; bracts 2 or 3, ovate, acute to apiculate. Flowers white to pink; tepals 5–7 mm long; ovary with small crests adjacent to the style; stamens included. Seed surface minutely roughened (adapted from Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Variety tenerum is easily distinguished from the typical variety by the presence of bulbils in the inflorescence.

Range Comments
BC and AB south through OR, NV, AZ and NM and all of the Rocky Mountain states (Kartesz 2009).

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Citation for data on this website:
Geyer's Bulbil Onion — Allium geyeri var. tenerum.  Montana Field Guide.  .  Retrieved on , from