Brickellia microphylla var. microphylla

Synonyms: Brickellia microphylla var. watsonii Brickellia watsonii
Treatment appears in FNA Volume 21. Treatment on page 503. Mentioned on page 504.

Stems viscid to glandular-villous. Peduncles viscid to glandular-villous. Involucres 8–12 mm. Florets 15–28(–34). 2n = 18.


Phenology: Flowering Jul–Oct.
Habitat: Dry rocky places, canyon walls, sand dunes, washes
Elevation: 1200–2400 m

Distribution

V21-1279-distribution-map.gif

Ariz., Calif., Colo., Idaho, Nev., Oreg., Utah, Wash., Wyo., Mexico.

Discussion

Brickellia watsonii, more recently recognized as B. microphylla var. watsonii, is distinguished by its tomentose-puberulent, often gland-dotted indument (contrasted with the villous to glandular-villous indument of var. microphylla), and heads with ca. 18 flowers (versus 15–34 in var. microphylla); such distinctions have proved to be weakly substantiated, at best.

Selected References

None.

Lower Taxa

None.

Randall W. Scott +
(Nuttall) A. Gray +
Bulbostylis microphylla +
Ariz. +, Calif. +, Colo. +, Idaho +, Nev. +, Oreg. +, Utah +, Wash. +, Wyo. +  and Mexico. +
1200–2400 m +
Dry rocky places, canyon walls, sand dunes, washes +
Flowering Jul–Oct. +
Smithsonian Contr. Knowl. +
Illustrated +
Brickellia microphylla var. watsonii +  and Brickellia watsonii +
Brickellia microphylla var. microphylla +
Brickellia microphylla +
variety +