Echinocereus weinbergii

Echinocereus weinbergii is a species of Echinocereus.

Background
Very stout, usually simple, at first globose, becoming conical, at least in cultivation, 13 cm. in diameter; more or less undulate; areoles elliptic, approximate; radial spines 9 to 12, pectinate, 3 to 12 mm. long, at first white or rose but in age yellowish; central spines none; flowers diurnal, 3.6 cm. broad, rose-colored; inner perianth-segments in several series, 1.5 to 3 cm. long, 4 to 5 mm. broad, lanceolate; fruit not known.