Cereus nesioticus
Proc. Amer. Acad. Arts xxxviii. 179. Distibution: Galapagos Islands, Ecuador.
Family
Cactaceae
Genus
Species
Cereus nesioticus
Author
K.Schum. ex B.L.Rob.
Chinese genus
天轮柱属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Seeds
Brownish-black, rounded to ellipsoidal, 1-1.5 mm long.
Description
It is a slow-growing, relatively short columnar cactus, densely clumping from the base, densely covered with soft furry spines and grows in clumps to a height of about two 60 cm and up to 2 m wide. New growth is yellow, turning to brown or black, which darkens to gray with age.
Note
Brachycereus nesioticusSN|6108]]SN|6108]] (K. Schum.) Backbg. is most closely related to the Andean (Ecuador) Armatocereus cartwrightianusSN|4801]]SN|4801]] (Britt. & Rose) Backb.
Flowers
Diurnal, narrow funnelform, creamy white from the side of the stems, 6-10 cm long, 2,5-5 cm in diameter. Floral tube with numerous spiny areoles and small scales. The flowers are visible in the early morning hours only opening just before dawn, and normally fade by 7 or 8 in the morning.
Spines
40 or more , 2.5 cm long, unequal, yellowish when young, darkening to brown or black as they ages, radiating, stiff to somewhat flexible, 0.5-5 cm long.
Stem
Cylindrical to prostrate, 10-50 cm (3.9-20 in) high, about 3- 5 cm in diameter with 14-22 ribs
Fruits
Tan-coloured, fleshy at maturity, 1.5-3.5 cm long, 1-1.4 cm in diameter, covered with yellow spines. Flowers remnants persistent.