Desert Night-Blooming Cereus
Desert Night-Blooming Cereus7 locationsPlant
.: sirena :.
Jul 16 2010
Tohono Chul Bloom Night
Featured Detail Photo mini map Featured Full Photo.: Alston_Neal :.
Jan 12 2014
Maricopa Mtns NE side
ID1577 URL
Magnoliophyta - Flowering plant
FamilyCactaceae - Cactus
Elevation1000 - 3500
Prime BloomWhite
BloomsJun - Jul
Images Bing, Google

Peniocereus greggii

Peniocereus greggii is a cactus species native to Arizona, New Mexico, Texas (USA); and Chihuahua, Coahuila, Durango, Sonora, and Zacatecas (Mexico). Common names include Arizona queen of the night, nightblooming cereus and Reina de la noche. The species name greggii honors Josiah Gregg (1806 – 1850), a merchant, explorer, naturalist, and author of the American Southwest and Northern Mexico.

Peniocereus greggii with fruit in Sahuarita, Arizona.
This cactus has stems about 1/2-1 inch wide with 6-9 edges. Its flowers are white, up to 30 centimetres in diameter with a scent redolent of vanilla. The flowers open after sundown, closing and wasting after a few hours. By 9 am the next day they are gone. They usually bloom one night a year in June or July. In any given area, they all bloom at the same time. They look dead during the rest of the year. They have a large tuber that tastes a bit like a potato. They tend to be ubiquitous throughout the higher sonoran desert area around Tucson. See "A Natural History of the Sonoran Desert published by the Arizona Sonora Desert Museum, pg 197.

Tohono Chul in Tucson, Arizona has the largest private collection of Sonoran Desert native Night-blooming Cereus - Peniocereus greggii. Each summer this botanical garden/museum hosts "Bloom Night," the one night each summer it is predicted the greatest number of cereus flowers will be in bloom, opening from 6pm until midnight to allow guests to stroll the grounds and view the flowers.

Source: Wikipedia
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Plants of Arizona   Pg# 168 Sonoran Desert Wildflowers   Pg# 0
Arizona Flora   Pg# 0 Undecided Book   Pg# 0
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