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Ancistrocactus megarhizus


Common Name(s): Fishhook Cactus, Root Cactus, Twisted-Rib Cactus
Synonym(s): Echinocactus scheeri, Ancistrocactus scheeri, Ferocactus scheeri, Pediocactus scheeri, Echinocactus megarhizus, Sclerocactus scheeri
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Subfamily: Cactoideae
Tribe: Cacteae
Distribution: Tamaulipas - Mexico (North America)
Habit: Globose-Cylindrical
Flower: PinkEncounterability: Rare
Original Description: The Cactaceae 4 p.4 - Britton & Rose (1920)
Solitary or in clusters of 3 or 4; plant body nearly globular or a little elongated, 5 to 8 cm high, usually solitary, from large and fleshy roots; ribs spiral, divided into dark-green tubercles, 4 to 5 cm high; radial spines 20 or more, pectinate, at first pale yellow, in age white; in seedlings the spines pubescent; central spines usually 4, the 3 upper similar to the radials, although a little stouter and in young areoles not easily distinguished from them, the lower central spines stout and strongly hooked, 15 mm long; flowers not seen; fruit green, suggesting that of a Coryphantha, clavate, bearing a few naked scales near top; seed black, smooth, shining.
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Ancistrocactus megarhizus
A. megarhizus
Picture taken at: Juergen Menzel's Private Collection

Photographer: Juergen Menzel
Ancistrocactus megarhizus
A. megarhizus
Picture taken at: Juergen Menzel's Private Collection

Photographer: Juergen Menzel
Ancistrocactus megarhizus
A. megarhizus
Picture taken at: Private Collection -Baku city, Azerbaijan

Photographer: Ilham Alekperov

*Currently 1 of 1 known species are represented on CactiGuide.com.


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