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Montana Field Guide

Montana Field Guides

Herbaceous Greenbrier - Smilax lasioneura
Other Names:  Smilax herbacea

Status Under Review
Native Species

Global Rank: G5
State Rank: SNR

Agency Status
MNPS Threat Rank:
C-value: 8

External Links

General Description
Dioecious, rhizomatous, perennial, herbaceous vine. Stems glabrate, ascending or climbing, 30–120 cm; tendrils from the leaf axils. Leaves simple, petiolate, alternate; blades ovate, cordate to truncate, 5–9 cm long, net-veined, glaucous and puberulent beneath. Inflorescence axillary umbels with numerous flowers; peduncles 3–8 cm. Flowers unisexual, star-shaped, green; tepals 6, separate, spreading, oblong, 3–4 mm long; stamens 6, shorter than the tepals, reduced in female flowers; ovary 3-celled, superior; stigmas 3. Fruit a 3- or 6-seeded, blue berry 6–10 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety lasioneura (Hook.) A. DC.

Range Comments
SK to ON south to WY, TX, MS and FL (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 31

(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)


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Citation for data on this website:
Herbaceous Greenbrier — Smilax lasioneura.  Montana Field Guide.  .  Retrieved on , from