Espostoa Britton & Rose (1929)
named after Nicolas E. Esposto
Peruvian botanist on the Escuela Nacional de Agricultura in Lima
columnar cactus, dendriform to bushy, somewhat branched like candelabra, usually dense white hairy
hairs silky, like cobwebs around the plants, on the crown not soft and dense
on the sprout end is an cephalium with whiteish, yellowish or brownish hairs
spines short, thin, white, yellowish or red
flowers about 5 cm (2 in) long, whiteish, at nights, appears on the cephalium
fruits berry like, red, sparse hairy; seeds dull black |
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Distribution |
south America - Ekuador, Peru, Bolivia
steppes and mountains |
Growth period |
many warmness and full sun
only moderate watering, only at warm weather,
moisture at cold weather is dangerous
not watering from above,therewith the hairs stay clean
occasionally spraying with water is to recommend in the evening
to hold the plants clean, is cultivating in a greenhouse recommendable
in midsummer keep the plant dry for a growth rest, main growth period is in spring time and fall |
Winter period |
absolutly dry at 10–14°C (50–57°F), as possible not under 10°C (50°F) |
Substrat |
minerally, nutrient-rich, loose and well-permeable for water
with addition of crushed bricks
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| Espostoa guentheri (Kupper) Eggli (2005) |
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Habitat |
Bolivia
Cochabamba,
Santa Cruz, Chuquisaca -
in the valley of Rio Grande,
at El Oro in 800–1100 m (2624–3609 ft) altitude |
Description |
named after Ernesto Guenther, Valparaiso
columnar cactus, to 2 m (6.5 ft) tall, branching at the base, about 10 cm (3.9 in) Ø, light green
ribs to 27, with slight tubercles, above the areoles with unclear furrows
areoles yellowish-white, felted
young 15, later to 25 spines, to 1.5 cm (0.6 in) long
1 central spine, to 2.2 cm (0.9 in) long
cephalium at the top, reddish-yellow to strong foxy red,
with to 6 cm (2.4 in) long bristles, on the areoles to 4 cm (1.6 in) long, with yellowish-white wool
flowers to 8 cm (3.1 in) long, 3 cm (1.2 in) Ø, self sterile, only 1 night open, yellowish-white,
pericarpel and ovary covered with pink silky wool |
Synonyms |
Cephalocereus guentheri W. Kupper (1931)
Vatricania guentheri (W. Kupper) C. Backeberg (1951)
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CITES |
Appendix II |
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