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Montana Field Guide

Montana Field Guides

Orange Agoseris - Agoseris aurantiaca

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Native Species

Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

External Links

 
General Description
Perennial 6–60 cm. Leaves oblanceolate, 5–35 cm long, entire, dentate, or with pinnate, linear lobes. Herbage glabrous to sparsely villous. Involucre 1–3 cm high; phyllaries lanceolate, in 2 to 4 indistinct series, green or purple-spotted, glabrate to villous. Rays orange to pink; ligules 6–12 mm long. Pappus 6–15 mm long. Achene body 5–9 mm long; beak 3–7 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are varieties aurantiaca or carnea (Rydb.) Lesica.

Species Range
Present
 


Range Comments
BC to QC, south to CA, AZ and NM (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 10

(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

References
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Citation for data on this website:
Orange Agoseris — Agoseris aurantiaca.  Montana Field Guide.  .  Retrieved on , from