Echinocereus grandis

Echinocereus grandis is a species of Echinocereus.

Background
Stems usually single or in small clusters, sub-cylindric, 1 to 4 dm. high, 8 to 12 cm. in diameter; ribs 21 to 25, low; areoles large, longer than broad, about 1 cm. apart; spines dull white or cream-colored: rather short and stiff, the radials 15 to 25, the centrals 8 to 12, often in 2 rows; flowers 5 to 6 cm. long, unusually narrow, with a short limb; ovary and flower-tube densely clothed with clusters of pale, straw-colored spines intermixed with white hairs; outer perianth-segments white, with a green medial line; inner perianth-segments narrow, 1.5 cm. long, white with green bases; filaments green; style white; stigma-lobes green; fruit densely spiny.