Echinocereus

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Echinocereus
Echinocereus fasciculatus
Scientific classification
Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Caryophyllales Family: Cactaceae Subfamily: Cactoideae Tribe: Pachycereeae Genus: Echinocereus Engelm.
Species
Echinocereus acifer Echinocereus adustus Echinocereus apachensis Echinocereus barthelowanus Echinocereus bonkerae Echinocereus boyce-thompsonii Echinocereus brandegeei Echinocereus chloranthus Echinocereus cinerascens Echinocereus coccineus Echinocereus ctenoides Echinocereus dasyacanthus Echinocereus engelmannii Echinocereus enneacanthus Echinocereus fasciculatus Echinocereus fendleri Echinocereus knippelianus Echinocereus ledingii Echinocereus milleri Echinocereus nicholii Echinocereus nivosus Echinocereus pacificus Echinocereus papillosus Echinocereus pectinatus Echinocereus pentalophus Echinocereus polyacanthus Echinocereus salm-dyckianus Echinocereus scheeri Echinocereus reichenbachii Echinocereus rigidissimus Echinocereus russanthus Echinocereus stramineus Echinocereus triglochidiatus Echinocereus viridiflorus Echinocereus websterianus

Echinocereus is a genus of ribbed, usually small to medium-sized cylindrical cacti, comprising about 50 species from the southern United States and Mexico. They are commonly known as hedgehog cacti, though the term also applies for Pediocactus. The flowers are usually large, and the fruit are edible. Most Echinocereus species prefer full sun. Several of the species are cold-hardy, tolerating temperatures as low as -23°C / -10°F in dry conditions.

The genera Morangaya G.D.Rowley and Wilcoxia Britton & Rose have been brought into synonymy with Echinocereus.

Echinocereus viereckii	Echinocereus viereckii	Echinocereus amoenus	Echinocereus acifer
Echinecereus lauii	Echinocereus pentalophus (DE CANDOLLE) HORT.F.A. HAAGE ssp. procumbens (ENGELMANN) BLUM et LANGE	Echinocereus enneacanthus	Echinocereus fendleri [this is actually a Coryphantha species]

[edit] References

• Fischer, Pierre C. 70 Common Cacti of the Southwest. City unknown: Southwest Parks and Monuments Association, 1989.
• Freeman, Davi (2004). Cactiguide.com. Retrieved May 6th, 2005.
• Ohr, Martina & Andreas (2005). Echinocereus Online. Retrieved May 7th, 2005.
• Anderson, Miles (1998). The Ultimate Book of Cacti and Succulents. ISBN 1 85967 460 7. Lorenz Books.