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 ritteri Buining (1960) |
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Habitat |
Peru
Amazon - Cajamaraca
valley of the Rio Marañón, underneath of 900 m (2950 ft) altitude
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Description |
named after Friedrich Ritter
tree shaped branched, to 4 m (13.1 ft) tall, shoots to 7 cm (2.7 in) Ø, dark-green
ribs 18–22, with crosswise furrows
areoles white
hairs 2–3 cm (0.8–1.2 in) long, thin, partly distant, yellowish or white
1 central spine, to 2 cm (0.8 in) long, red-brown, on older plants full dark
cephalium lateral at the crown, dense like a fur, yellowish
flowers to 8 cm (3.1 in) long, white |
Synonyms |
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CITES |
Appendix II |
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