Ferocactus emoryi

Ferocactus emoryi
	Ferocactus emoryi subsp. rectispinus at the botanical garden of Villa Durazzo-Pallavicini, Genova Pegli
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Genus:	Ferocactus
Species:	F. emoryi
Binomial name
	Ferocactus emoryi; (Engelm.) Orcutt
Synonyms
	Echinocactus emoryi; Ferocactus rectispinus; Echinocactus covillei (Britton & Rose) A.Berger; Ferocactus covillei Britton & Rose;

Ferocactus emoryi, known commonly as Emory's barrel cactus, Coville's barrel cactus and traveler's friend, is a barrel cactus in the genus Ferocactus.

Description

Ferocactus emoryi is spherical or cylindrical solitary barrel cactus, light green to glaucous, reaching a diameter of 60–100 centimetres (24–39 in) and a height of 2–2.5 metres (6 ft 7 in – 8 ft 2 in). It has 15 to 30 ribs with tubercles, especially in the juvenile stage. The spines are white to reddish. The central spine is very strong, 4–10 cm long, while the seven to twelve radial spines reach lengths of up to 6 cm. The large and funnel-shaped flowers are usually red or yellow, reach lengths of up to 7.5 centimeters and have a diameter of 5 to 7 centimeters. The fruit is ovoidal, about 5 cm long. The subspecies F.e. rectispinus has been found with center spines as much as ten inches (25 centimeters) in length ^[1] or even thirteen inches (32 centimeters) .^[2] These are the longest spines of any cactus.

Distribution

This species is found in nature in Mexico (Sonora, Sinaloa and Baja California Sur) and in the United States (Arizona).

Habitat

Ferocactus emoryi grows in the desert scrubs, hillsides, rocky slopes and gravely rocky or sandy soils, at an elevation of about 0–1,200 metres (0–3,937 ft) above sea level.

Subspecies

Ferocactus emoryi var. emoryi
Ferocactus emoryi var. rectispinus (Engelm.) N.P.Taylor

References

^ Lindsay, George (March–April 1976). "Baja California Revisited - Part II". Cactus and Succulent Journal. 48 (2): 57.
^ coulter, Dr. John M. (1896). "Preliminary Revision of North American species of Echinocactus, Cereus and Opuntia". Contrib. U.S. National Herbarium. 3: 362.

Flora of North America Editorial Committee, e. 2003. Magnoliophyta: Caryophyllidae, part 1. In Fl. N. Amer.. Oxford University Press, New York.
Tropicos: Ferocactus emoryi
Cactiguide: Ferocactus emoryi
The Plant List.org: Ferocactus emoryi
Desert Tropicals: Ferocactus emoryi Archived 2017-08-18 at the Wayback Machine
Cactus-art.biz: Ferocactus emoryi

External links

Media related to Ferocactus emoryi at Wikimedia Commons

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[1] Lindsay, George (March–April 1976). "Baja California Revisited - Part II". Cactus and Succulent Journal. 48 (2): 57.

[2] ulter, Dr. John M. (1896). "Preliminary Revision of North American species of Echinocactus, Cereus and Opuntia". Contrib. U.S. National Herbarium. 3: 362.

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