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Montana Field Guide

Montana Field Guides

Prairie Sunflower - Helianthus petiolaris


Global Rank: G5
State Rank: S4

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

External Links






 
General Description
Taprooted annual. Stems erect, often branched, 15–60 cm. Herbage appressed- hispid. Leaves alternate; blades entire to serrate, lanceolate, 2–8 cm long. Involucres 12–30 across; phyllaries lanceolate, hispid, ciliate, 7–14 mm long. Ray ligules 10–25 mm long. Disk corollas 4–7 mm long, lobes often deep red. Achenes 3–5 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Throughout temperate N. America (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 53

(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
Disturbed soil of grasslands, 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:
Prairie Sunflower — Helianthus petiolaris.  Montana Field Guide.  .  Retrieved on , from