Yucca madrensis Gentry

Soco Yucca.
The Agave Family in Sonora, Agr. Handbook No. 399,
U. S. Dept. Agr. 159. 1972.

Type: GENTRY 21209, Sierra Charuco, along the Sonora-Chihuahua boundary, Mexico, in pine-oak forest, alt. 4,500-5,000 feet, Sept. 9, 1965 (If. & old dried inflorescence). No. 2557499. US.

Other representative material studied.

fh 0604, Barranca del Cobre, 2,100 m,
fh 0606, La Concha, 2,150 m.
S 2, Casogachic, Sierra Monterde, 1,600 m,
type locality area near Rio Mayo, 2,100 m.
S 3, Areponapuchi, 2,100 m,
S 4, El Divisador, 2,200 m.
S = fieldnumber of R. SCHUMACHER

Yucca madrensis

Yucca madrensis, fh 0604, Baranca del Cobre
2,100m. in open woodland