Xanthisma texanum var. drummondii

(Torrey & A. Gray) A. Gray

Smithsonian Contr. Knowl. 3(5): 98. 1852.

IllustratedEndemic
Basionym: Centauridium drummondii Torrey & A. Gray Fl. N. Amer. 2: 246. 1842
Synonyms: Xanthisma texanum subsp. drummondii (Torrey & A. Gray) Semple
Treatment appears in FNA Volume 20. Treatment on page 386. Mentioned on page 385.

Bodies mostly ovate (3.5–8 × 2.5–5 mm distal to widest point), apices acute to acuminate, flared distally, ovate portion 3.5–8 × 2.5–5 mm (distal to widest point). 2n = 8, phyllaries abruptly expanded distal to stalks.


Phenology: Flowering spring–fall.
Habitat: Prairies, open woods, pastures, and roadsides
Elevation: 200–1000 m

Discussion

Variety drummondii was attributed to Arizona by J. T. Kartesz and C. A. Meacham (1999); if true, it would be an apparent introduction.

Selected References

None.

Lower Taxa

None.
Ronald L. Hartman +
(Torrey & A. Gray) A. Gray +
Centauridium drummondii +
Okla. +  and Tex. +
200–1000 m +
Prairies, open woods, pastures, and roadsides +
Flowering spring–fall. +
Smithsonian Contr. Knowl. +
Illustrated +  and Endemic +
Xanthisma texanum subsp. drummondii +
Xanthisma texanum var. drummondii +
Xanthisma texanum +
variety +