Species Information
Kingdom: Plantae
Phylum: Anthophyta
Class: Dicotyledoneae
Order: Asterales
Family: Asteraceae
Genus: Erigeron
Species: acomanus
Acoma Fleabane - Erigeron acomanus
Image courtesy of New Mexico Rare Plants
393982
Species Extent (New Mexico)
General Description
Taprooted perennial, mat-forming, 10-70 cm in diameter; leaves mostly basal, spreading or ascending, 8-30 in rosettes at ends of caudex branches, oblanceolate to narrowly obovate or spatulate, 8-23 mm long, 2-7 mm wide, round or obtuse at the tip, moderately puberulent on both surfaces; flowering stems erect, 4.5-15 cm tall, bearing 4-10 reduced leaves; heads solitary, pendulous in bud, erect in flower and fruit; involucre 5 mm high; phyllaries 25-38, lanceolatate, 2.5-4 mm long, purplish on the margins; ray flowers 16-30, white, 4.5-9 mm long; disk corollas 2.5-3 mm long, yellowish; achenes somewhat flattened, lightly hirsute; pappus of fine barbellate bristles. Flowers in July.
Status
Global Rank: G1
State Rank: S1
| Rank Metadata | |
|---|---|
| State Rank: S1 | Rank Changed: 11/03/2022 |
| Rank Reviewed: 11/03/2022 | |
| Reason: Should reconsider S1 because the Blue Water Canyon population is a different subspecies distinct from the Thoreau population. Both populations are geographically tiny. If they are ever published as separate infraspecific taxa, they could both be G2T1 S1. (R. Sivinski 2022) |
| Ecological Factors | |
|---|---|
| Specificity: Unknown | Range Extent: <100 square km (less than about 40 square miles) |
| Occurences: 1 - 5 | Population Size: 250 - 1000 individuals |
| Area of Occupancy: N/A | Threat Summary: N/A |
State Status:
Observations in Natural Heritage New Mexico Database
Number of Subpopulations: 5
Number of Mapped Locations: 27
Number of Observations: 85
Observation date range: 09-24-1977 to 05-29-2012
External Links
View More Information about this species at:
NatureServe Explorer
New Mexico Rare Plants Website
Environmental Conservation Online System (ECOS)
NatureServe Explorer
New Mexico Rare Plants Website
Environmental Conservation Online System (ECOS)