Eriosyce robusta

	Eriosyce curvispina var. robusta (Syn: Horridocactus robustus)	CACTUS ART NURSERY Cultivation and Mail Sale of Cacti and Succulents.

E. robusta (ex: Horridocactus robustus)

Description: Eriosyce robusta is a spherical plants usually solitary characterized by relatively short but very strong and thick spines.
It is one of the the innumerable form of Eriosyce curvipina that is among of the most wide-spread of the Eriosyce species. Plant belonging to this taxon are variable in appearance.
Stem: Globular, up to 15 cm.
Spines: Short but very strong and thick, stiff greyish-brown spines whit darker tip, young spines are brownish while older one became greyish.
Flowers: Flowers are about 4 cm in diameter usually yellowish-greenish with reddish midribs. (but redder flowers are also reported)

Cultivation: It is a summer grower species. Easy to cultivate but somewhat rot prone if kept in a non ventilated place. Require a very fast draining drying soil, water regularly in summer, but do not overwater.
Needs a full sun exposure (or light shade) Good heat tolerance. Hardy to at least -5°C ( but probably can tolerate - 10° C for brief periods)

Propagation: Usually propagated from Seeds. (seldom produces offsets)

Photo of conspecific taxa, varieties, forms and cultivars of plants belonging to the Eriosyce straussiana complex (This taxon has lots of synonyms (like most Eriosyce), with several controversial varieties and subspecies):

E. straussiana
E. curvispina
E. curvispina var. combarbensis (E. curvispina)
E. curvispina var. santiagoensis (E. curvispina)
E. curvispina (form pejerrejes) (E. curvispina)
E. engleri (E. curvispina engleri)
E. robusta (E. curvispina)

Family: Cactaceae (Cactus Family)

Scientific name: Eriosyce curvispina var. robusta (Ritter) Kattermann

Conservation status: Listed in CITES appendix 2.

Subgenus: Horridocactus

Origin: Maule (VII región) to Choapa (IV Región) in the north. Ocoa, Pichidangui, (Parque Nacional La campana, Reserva Mundial de la Biósfera) Type locality: Valparaíso.

Habitat: Rocky outcrop on costal terraces and cliffs.

Synonyms:

Eriosyce curvispina (Bertero ex Colla) Kattermann,
Succ. Pl. Res. 1:117. 1994
Horridocactus robustus (F. ritter) Backeberg 1962 Not validly published

Horridocactus robustus (F.Ritter) Y.Ytô

Pyrrhocactus robustus Ritter
Succulenta, 39 : 25, 1960

Neochilenia robusta (Ritt.) backeb.
Die cactaceae, 6 : 3781, 1962

Pyrrhocactus horridus v. robustus (F. Ritter) F. Ritter,
Kakteen in Südamerika, 3: 947-948: 1980

Eriosyce curvispina ssp.curvispina 'robusta'

Neoporteria coimasensis var. robusta

Neoporteria robusta

Neoporteria subgibbosa var. robusta

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