Detail of a flower of one of the night-blooming Harrisia jusbertii. The Harrisia cactus
is famed for its large, funnel-
shaped, green throated flowers, from which it derives one of its common name, 'Green Siren'. Note the ruffled inner
petals.
Las Cruces, New Mexico ( June through September) - Flowers open nocturnally.
Ramblin' Cameras Exotic Cactus Gallery