Espostoa huanucoensis
Kakteen Südamerika 4: 1435 (-1436). 1981
Family
Cactaceae
Genus
Species
Espostoa huanucoensis
Author
H.Johnson ex F.Ritter
Chinese genus
老乐柱属
Chinese name
-
DescriptionEdit description
Habit
It is a shrubby cactus species branching at the base, reaching up to 2-3 m tall.
Seeds
Very small, black and shining.
Description
Espostoa huanucoensisSN|6772]]SN|12852]] is a shrubby, tubular growing cactus well adapted to high altitudes. It is closely related to Espostoa lanataSN|12852]]SN|6772]] and often considered merely a variant of it. The most striking feature of this species is the warm “woolly coat” it possesses, which serve to protect it from the harsh sun common to its native habitat. More precisely the dense woolly bristles benefit the plant by reducing sun exposure and by trapping a layer of air next to the cactus body. This helps to cool the plant in the summer and keep it warm in the winter.
Cephalium
Covering 5-8 ribs, 1-2 m long, with white hairs 5-7 mm long.
Flowers
White, nocturnal, funnelform, nearly hidden by the wool, 5,5-7 cm long.
Blooming Season
Late spring, early summer.
Spines
All radials 30-40, bright golden yellow, needle-like, 0,5-1 cm long.
Ribs
17-25, low rounded, separated by linear furrows, 5-7 mm high.
Stem
Cylindrical, erect or diverging, green, 6-10 cm in diameter.
Fruits
Top shaped, near spherical 2-3,5 cm long, green or purplish-red, very juicy, sweet and edible.
Areoles
With yellowish brown felt almost concealed by white or yellowish hairs and spines. The hairs are neatly brushed, cunningly concealing the sharp spines that are a trap to the unwary.