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E. robusta (ex: Horridocactus robustus)
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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)
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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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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 over-water.
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):
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