Cereus poselgeri
Contr. U.S. Natl. Herb. 3: 398. 1896
Family
Cactaceae
Genus
Species
Cereus poselgeri
Author
(Lem.) J.M.Coult.
Chinese genus
天轮柱属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Seeds
Black 1,5 mm.
Description
Shrubby, scarcely branched, initially erect, later sprawling or clambering.
Roots
Tuberlike, contrarily to Echinocereus kroenleinii, the underground storage organ similar to dahlia tubers is not capable of producing new shoots. Those sprout out only from the main cut stem. Each plant can have up to 8 tubers, 10-20 mm in diameter, with a length of 60-100 mm. The colour is light brown in youth, later dark brown.
Note
It apparently looks like some Peniocereus species. However the flowers, fruits, and seeds of Echinocereus poselgeri are characteristic for Echinocereus, somewhat comparable to those of Echinocereus reichenbachi.
Flowers
Pink Rose/Mauve Magenta (Pink-Purple).
Blooming Season
Late Spring/Early Summer.
Spines
Tan-greyish white; 1 central up to 9 mm long, enlarged at its base, 4mm long; 8-15 straight radials, 4,5mm long, closely appressed (except at the stem tip)
Ribs
6-10.
Stem
Very tall and slender, dark coloured up to 1.2 m long and 2 cm in diameter.
Fruits
Ovoidal 20 mm Long, 10-15 mm Ø, dark green to brownish, pulp white