Aphanostephus ramosissimus var. humilis

(Bentham) B. L. Turner & Birdsong

Phytologia 45: 501. 1980

Synonyms: Aphanostephus arizonicus A. GrayAphanostephus humilis (Bentham) A. Gray
Basionyms: Leucopsidium humile Bentham
Treatment appears in FNA Volume 20. Treatment on page 353.
Plants 6–15 cm. Involucres 4.7–7.5 mm. Ray florets 26-–35. Cypselae (1.1–)1.4–1.6 mm; pappi 0 or minutely ciliate rings 0.1–0.2 mm, sometimes nearly smooth. 2n = 8.

Phenology: Flowering Apr–Jun(–Oct).
Habitat: Sand and gravel bars, limestone soils, Larrea flats, mesquite savannas, roadsides, disturbed sites
Elevation: 700–1600 m

Distribution

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Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Tamaulipas, Zacatecas).

Discussion

References

None.

Lower Taxa

No lower taxa listed.