1.
Peucephyllum schottii
A. Gray in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 74. 1859.
Leaves
5—20(—50) × 1—2 mm.
Peduncles
8—25 mm, glabrous or stipitate-glandular.
Disc corollas
6.5—8.5 mm.
Cypselae
3.2—4 mm;
pappus elements
2—6 mm.
2
n
= 40.
Flowering spring (following rains). Desert scrubs, soils from granitics, limestones, sandstones, volcanics; -50—1400 m; Ariz., Calif., Nev., Utah; Mexico (Baja California, Baja California Sur, Sonora).
