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Montana Field Guide

Montana Field Guides

Skunkweed - Navarretia squarrosa

Non-native Species

Global Rank: G5
State Rank: SNA
(see State Rank Reason below)

Agency Status
MNPS Threat Rank:

External Links

State Rank Reason (see State Rank above)
Navarretia squarrosa is thought to be exotic in Montana based on its occurrence in other states and the circumstances of where it was found in Montana (sub-irrigated pasture land). It is unknown if the 1981 population has persisted in Montana. A conservation status rank is not applicable (SNA) because this plant is exotic in Montana and is not a suitable target for conservation activities.
General Description
Stems erect, 2–5 cm; ascending lateral branches longer than main stem. Herbage viscid-villous above. Leaves 8–25 mm long with linear lobes, the central one much the longest. Flowers: calyx 5–10 mm long, asymmetrical; corolla white to lavender, shorter than the calyx, tube 3–5 mm long, lobes ca. 1 mm long; style included; stamens not or little exserted. Capsule 2–4 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
BC to CA, NV. One collection from Sanders County (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 2

(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:
Skunkweed — Navarretia squarrosa.  Montana Field Guide.  .  Retrieved on , from