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Entire-leaf Goldenweed - Pyrrocoma integrifolia
Other Names:
Haplopappus integrifolius
Native Species
Global Rank:
G4
State Rank:
S4
(see State Rank Reason below)
C-value:
4
Agency Status
USFWS:
USFS:
BLM:
External Links
State Rank Reason (see State Rank above)
Pyrrocoma integrifolia commonly occurs in southwest Montana and adjacent counties.
- Details on Status Ranking and Review
Range Extent
ScoreF - 20,000-200,000 sq km (~8,000-80,000 sq mi)
Area of Occupancy
ScoreE - 26-125 4-km2 grid cells
Number of Populations
ScoreD - 81 - 300
Number of Occurrences or Percent Area with Good Viability / Ecological Integrity
ScoreD - Some (13-40) occurrences with excellent or good viability or ecological integrity
Environmental Specificity
ScoreC - Moderate. Generalist or community with some key requirements scarce
Threats
ScoreD - Low
CommentThreat category includes: Invasive non-native/alien species/diseases. Plants are palatable to sheep, but this is assumed to not be a threat to populations.
General Description
Stems ascending, 7–50 cm, glabrate to sparsely villous. Leaf blades oblanceolate to narrowly elliptic, entire, 3–15 cm long, glabrous, becoming sessile above. Heads radiate, solitary or few, reduced in size below; involucre hemispheric, 1–2 cm high; phyllaries in 2 to 3 series, oblanceolate, ciliate, green above. Rays 18 to 45; ligules 7–18 mm long. Disk corollas 6–10 mm long. Achenes 5–7 mm long, glabrous (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Species Range
Montana Range
Range Descriptions
Native
Range Comments
Endemic to southwest MT, adjacent ID and WY (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 105
(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
- Literature Cited AboveLegend:
View Online Publication- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.- Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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