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Ferocactus emoryi
Ferocactus emoryi (Engelm.) Orcutt
Emory's Barrel Cactus, Coville's Barrel, Sonoran Barrel
Cactaceae (Cactus Family)
Synonym(s): Ferocactus covillei
USDA Symbol: FEEM
USDA Native Status: L48 (N)
Ferocactus emoryi is quite common in Sonora, Mexico, but has the most limited range of the three large barrel cacti in the US, found only in a small area of far south Arizona, centered on Organ Pipe Cactus National Monument, extending northwards only to the vicinity of Ajo. The plant is easily distinguished since unlike the other two barrels, Ferocactus cylindraceus and Ferocactus wislizeni (which also occur in parts of this area), there are no thin radial spines, only thick, reddish central spines, bearing tiny transverse ridges. The longest (up to 4 inches) points straight out, curves downwards and is somewhat hooked at the end, while the others, numbering 5 to 9, are also strong, between 2 and 3 inches in length. Spine clusters have a notch above each areole, and are borne on 21 to 32 protruding ribs.
Like most barrel cacti, the fruit of Ferocactus emoryi are large and yellow, but in contrast to the other two Arizona species, flowers are red, both the petals and the interior. They bloom in late summer.
Description provided courtesy of The American Southwest.
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Plant Characteristics
Duration: PerennialHabit: Cactus/Succulent
Breeding System: Flowers Bisexual
Fruit Type: Berry
Size Notes: Up to about 8 feet tall.
Bloom Information
Bloom Color: Red , YellowBloom Time: Jun , Jul , Aug , Sep
Bloom Notes: Usually red, inner tepals occasionally yellow.
Distribution
USA: AZNative Distribution: Small area of south Arizona, from Ajo southwards.
Native Habitat: Desert flats, scrubland and hillsides, to 4,000 feet elevation.
Web Reference
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Webref 15 - The American Southwest (1994) John Crossley
Additional resources
USDA: Find Ferocactus emoryi in USDA PlantsFNA: Find Ferocactus emoryi in the Flora of North America (if available)
Google: Search Google for Ferocactus emoryi
Metadata
Record Modified: 2023-02-10Research By: DEW