USA, Arizona, Maricopa County, Maricopa County: Grown in cultivation at Desert Botanical Garden, Phoenix, N 33 deg 27' 33'', W 111 deg 56' 35'', 1200 ft., 366 m: accession number 1991 0209 0104; native to grounds at DBG.
33.459167 -111.943056
33d 27m 33s N; 111d 56m 35s W
365 metros
1200ft.
Tall columnar cactus, stem color blue-gray green or yellow-green; spines missing on lower part of cactus, gray or brown on upper part; flowers collected mid-afternoon, flower diameter 57-63 mm, length 135-143 mm, outer perianth green or pale green with wide green midstripe and blush of red at tips, inner perianth white, flowers start closing as soon as they hit the ground; stigma lobe number 8-11, color cream.