Acanthocalycium thionanthum

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http://cactusgarden.ru/gallery/image.raw?type=orig&id=811

Acanthocalycium thionanthum
(Spegazzini) Backeberg 1935

  • – Echinopsis thionantha – (Spegazzini) Werdermann 1931
    – Echinocactus thionanthus – Spegazzini 1905,
    – Lobivia thionantha – (Spegazzini) Britton & Rose 1922,
    – Echinocactus chionanthus – Spegazzini 1905,
    – Lobivia chionantha – (Spegazzini) Britton & Rose 1922,
    – Echinopsis chionantha – (Spegazzini) Werdermann 1931,
    – Acanthocalycium chionanthum – (Spegazzini) Backeberg 1935
    – Acanthocalycium griseum –  Backeberg 1963, not validly published
    – Acanthocalycium brevispinum – F. Ritter 1964,
    – Echinopsis brevispin (F. Ritter) – H. Friedrich & G. D. Rowley 1974
    – Acanthocalycium catamarcense = F. Ritter 1980

Plants usually solitary, globose to short cylindrical, dark green to gray-green, to 12 cm (4.7 in) high and 10 cm (3.9 in) in diameter. Ribs 9-15, round, slightly notched and tuberculate. Areoles elliptical. Spines awl shaped, gray with dark tips, 1-1.5 cm (0.4-0.6 in) long. Central spines 1—4, sometimes absent. Radial spines 5-10. Flowers somewhat bell shaped, bright yellow to red to white, to 4.5 cm (1.8 in) long and in diameter; pericarpels and floral tubes with dark, spine-tipped scales and brown to white hairs and bristles. Fruits globose, dehiscent, hard, to 1 cm (0.4 in) in diameter.

Distribution: Salta, Argentina.

References: Anderson E.F. - The Cactus Family 

 

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