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Montana Field Guide

Montana Field Guides

Giant blazingstar - Mentzelia laevicaulis


Global Rank: G4G5
State Rank: S3S4
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

External Links






State Rank Reason (see State Rank above)
Widely, though sporadically distributed across Montana. Usually not abundant where found.
 
General Description
Usually biennial. Stems branched, 20–80 cm. Leaves oblanceolate and petiolate below to lanceolate and sessile above, 4–12 cm long, deeply lobed to serrate. Flowers light yellow with pinnatifid bracts below the hypanthium, nocturnal; sepals 2–3 cm long; petals 5, lanceolate, 3–6 cm long. Capsule broadly cylindric, 2–4 cm long; seeds flattened, broadly winged, horizontal in several columns (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
BC, MT south to CA, UT and CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 3

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Sparsely vegetated soil of steep slopes, roadsides; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Giant blazingstar — Mentzelia laevicaulis.  Montana Field Guide.  .  Retrieved on , from