Search Field Guide
Advanced Search
Montana Field Guide

Montana Field Guides

Lava Aster - Ionactis alpina
Other Names:  Aster scopulorum


Global Rank: G5
State Rank: S4
* (see State Rank Reason below)

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

External Links






State Rank Reason (see State Rank above)
Numerous collections from a large number of counties in western Montana. This plants high elevation habitat is probably currently secure. Regionally endemic.
 
General Description
Perennial from a branched caudex. Stems sterile and fertile, erect, 4–15 cm. Herbage scabrous with pubescent to tomentose stems. Leaves cauline sessile, lanceolate to oblanceolate, entire, 3–12 mm long. Inflorescence a solitary head; peduncles villous. Involucre turbinate, 7–11 mm high; phyllaries linear, villous, glandular, keeled, scarious-margined. Rays 7 to 21, blue; ligules 6–15 mm long. Disk flowers yellow; corolla 5–7 mm long. Pappus in 2 series. Achenes linear-obovoid, 5–6 mm long, sericeous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
OR to MT south to CA, NV and UT (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 26

(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
Sagebrush steppe, dry grasslands, often in sandy soil; valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
Login Logout
Citation for data on this website:
Lava Aster — Ionactis alpina.  Montana Field Guide.  .  Retrieved on , from