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Montana Field Guide

Montana Field Guides

Rayless Alkali Aster - Symphyotrichum ciliatum
Other Names:  Brachyactis ciliata, Aster brachyactis


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

External Links






 
General Description
Taprooted annual. Stems erect, usually branched, 5–70 cm. Herbage glabrate; leaf margins sparsely retrorse-scabrous. Leaves cauline, linear, entire, petiolate below, 1–12 cm long. Inflorescence open leafy-paniculate with suberect branches. Involucre hemispheric, 5–10 mm high; phyllaries glabrous, linear-lanceolate, nearly equal, green, white-margined below, mucronate. Rays absent. Disk flowers ca. 14, filiform, white to pink; corollas 2–4 mm long; style well exserted. Achenes obovoid, 2- to 4-nerved, purplish, ca. 2 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
North-temperate N. America and Eurasia (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 5

(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
Vernally wet margins of ponds, lakes, streams, tolerant of saline conditions; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Rayless Alkali Aster — Symphyotrichum ciliatum.  Montana Field Guide.  .  Retrieved on , from