Pectis papposa var. grandis

D. J. Keil

Brittonia 26: 32. 1974.

Treatment appears in FNA Volume 21. Treatment on page 228. Mentioned on page 229.

Plants 5–30 cm. Leaves 20–60 mm. Peduncles 10–40 mm. Phyllaries 5–8 mm. Ray corollas 5–8 mm. Disc florets 12–24(–34); corollas 3–5 mm. Cypselae 3–5.5 mm; disc pappi 2.5–4 mm. 2n = 24.


Phenology: Flowering Jun–Dec.
Habitat: Deserts, desert grasslands, dry woodlands, roadsides
Elevation: 1000–2000 m

Distribution

V21-550-distribution-map.gif

Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila).

Discussion

Variety grandis is restricted for the most part to the Chihuahuan Desert with outlying populations in central Arizona. It often grows with Pectis angustifolia var. angustifolia in trans-Pecos Texas, especially on roadsides; occasional hybrids have been noted.

Selected References

None.

Lower Taxa

None.