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Lance-leaved Goldenweed - Pyrrocoma lanceolata
Other Names:
Haplopappus lanceolatus
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Native Species Global Rank :
G4?
State Rank :
S3S4
(see State Rank Reason below)
C-value :
4
Agency Status USFWS :
USFS :
BLM :
External Links
State Rank Reason (see State Rank above)
Pyrrocoma lanceolata is widely scattered from southwest to northeast Montana. It grows in moist to wet meadows in the plains, valleys, and montane areas. In southwest Montana plants appear to share characteristics with P. uniflora plants. More information on this plant's locations, population sizes, and threats are needed.
Details on Status Ranking and Review
Range Extent
Score F - 20,000-200,000 sq km (~8,000-80,000 sq mi)
Area of Occupancy
Score D - 6-25 4-km2 grid cells
Number of Populations
Score C - 21 - 80
Number of Occurrences or Percent Area with Good Viability / Ecological Integrity
Score B - Very few (1-3) occurrences with excellent or good viability or ecological integrity
Environmental Specificity
Score C - Moderate. Generalist or community with some key requirements scarce
Threats
Score D - Low
Comment Threat category includes: Invasive non-native/alien species/diseases.
General Description
Stems ascending, 10–40 cm, glabrate to sparsely villous. Leaf blades linear-oblanceolate to oblanceolate, spiny-dentate to entire, 2–10 cm long, glabrate. Heads 3 to 8, rarely solitary, radiate; involucre hemispheric, 7–10 mm high; phyllaries in 3 to 4 series, lanceolate, pointed, white below, green above, ciliate to villous. Rays 18–45; ligules 5–11 mm long. Disk corollas 4–7 mm long. Achenes 3–5 mm long, sericeous (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX ).
Our plants are variety
lanceolata .
Species Range
Montana Range
Range Descriptions
Native
Range Comments
AB, SK south to CA, UT CO andTX (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX ).
Observations in Montana Natural Heritage Program Database
Number of Observations: 29
(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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