Dieteria canescens var. aristata

(Eastwood) D. R. Morgan & R. L. Hartman

Sida 20: 1397. 2003.

Endemic
Basionym: Aster canescens var. aristatus Eastwood Proc. Calif. Acad. Sci., ser. 2, 6: 296. 1896
Synonyms: Machaeranthera canescens var. aristata (Eastwood) B. L. Turner Machaeranthera rigida Greene
Treatment appears in FNA Volume 20. Treatment on page 400. Mentioned on page 398, 399.

Annuals or biennials. Stems 1+, erect, stipitate-glandular, sometimes also canescent, rarely glabrous; branches divaricate to ascending. Mid and distal leaf blades linear-lanceolate to linear (lengths 4+ times widths). Peduncles equaling or longer than involucres. Involucres campanulate to broadly turbinate, 6–10 mm. Phyllaries in 3–6 series, appressed, spreading, or reflexed, apices sparsely to moderately stipitate-glandular, rarely canescent. Ray florets pistillate, fertile. Cypselae sparsely to moderately appressed-hairy. 2n = 8.


Phenology: Flowering Aug–Sep.
Habitat: Grasslands, sagebrush scrublands, pinyon-juniper woodlands, pine-oak woodlands, often in washes and streambeds
Elevation: 1000–2700 m

Distribution

V20-917-distribution-map.gif

Ariz., Colo., N.Mex., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
David R. Morgan +
(Eastwood) D. R. Morgan & R. L. Hartman +
Aster canescens var. aristatus +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
1000–2700 m +
Grasslands, sagebrush scrublands, pinyon-juniper woodlands, pine-oak woodlands, often in washes and streambeds +
Flowering Aug–Sep. +
Machaeranthera canescens var. aristata +  and Machaeranthera rigida +
Dieteria canescens var. aristata +
Dieteria canescens +
variety +