Echinocereus papillosus

Echinocereus papillosus is a species of Echinocereus.

Background
More or less cespitose, rather dark green, decumbent or ascending, 5 to 30 cm. long, 2 to 4 cm. in diameter; ribs 6 to 10, prominent, strongly tubercled; radial spines acicular, spreading, about 7, white to yellowish, 1 cm. long or less; central spine solitary, acicular, porrect, 12 mm. long or more; flowers large, a to 12 cm. broad, yellow with a reddish center, with rather few perianth-segments 4 to 6 cm. long, oblong-spatulate, acuminate, more or less serrate; scales on ovary red, spreading; fruit not known. Distributed in Western Texas.