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Gray Ghost Organ Pipe, Pitayo
Scientific Name: Stenocereus pruinosus (Otto) Buxbaum
Synonym: Rathbunia pruinosa, Cereus edulis, Lemaireocereus pruinosus, Echinocactus pruinosus, Ritterocereus pruinosus, Cereus pruinosus
Family: Cactaceae
Gray Ghost Organ Pipe, Pitayo (Stenocereus  pruinosus) Recommended Temperature Zone:
USDA: 10

Frost Tolerance: takes little frost

Sun Exposure: Full sun

Origin: South-central Mexico (Chiapas, Puebla)

Growth Habits: Columnar, branching close to the base, up to 20 feet tall (6 m), accasionally with trunk; 5 or 6 prominent ribs; areoles up to 1.6 in. apart (4 cm); 1 (to 4) grayish central spine, up to 1.2 in. long (3 cm); 5-9 grey radials with browner tips

Watering Needs: Little to moderate water

Propagation: Cuttings

Stem covered with white powder.

Gray Ghost Organ Pipe, Pitayo (Stenocereus  pruinosus)

As Lemaireocereus pruinosus in Britton and Rose's The Cactaceae

Blooming Habits:
Small white, slightly pinkish, night blooming flowers in spring, 2.4 to 3.6 inches long (6-9 cm). The tube areoles are with brownish wool. The ovoid fruit has spines when immature, 2.4 to 2.8 inches long (6-7 cm). It is red when mature. The seeds are yellowish brown with a rough surface.

Fruiting Habits:

Check for Field Collection numbers at Ralph Martin's Site

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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