Cereus catamarcensis
Dict. Hort. [Bois] 1: 471. 1896 This name is unresolved, but some data suggest that it is synonymous with Eriosyce strausiana (K.Shum.) Katt. in syn.
Family
Cactaceae
Genus
Species
Cereus catamarcensis
Author
F.A.C.Weber in Bois
Chinese genus
天轮柱属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Central Spines
1 to 8 longer and stouter (approx 30-40 mm long) similar in colour and shape to the radials.
Description
Eriosyce strausianaSN|18]]SN|18]], known in older description under the name Pyrrhocactus strausianusSN|25]]SN|25]], is a solitary or slowly clumping cactus with very strong spines. Flowers grow up at the top. Two subspecies are recognized, the nominate form and subsp. pachacoensis (Rausch) Ferryman.
Roots
Fibrous from a short tap root.
Flowers
3-4 cm long, 3,5-5 cm in diameter. Apical, broad funnel-form, straw coloured to dirty amber-yellow . Pericarpel and floral tube with wool and bristles.
Ribs
12 to14 in adult specimens. Obtuse and somewhat notched.
Stem
Globose to to sub-globose or cylindrical as it becomes old, up to 20 cm tall and 8-15 cm in width, dark green to olive green.
Radial Spines
8 to 14 about 25-30 mm long, Mostly curved upward, subulate, base swollen, dark greyish-black or dark horn coloured with black tips. Young spines are almost black (with a dark purple base), while older ones turn grayish.
Fruits
Only about 7-10 mm long, egg-shaped, greenish with thin wall, opening at maturity from a basal pore.
Areoles
Oval, woolly and hairy when young (with yellowish felt), later naked.