Bisnaga macrodisca
Sukkulenty 1(2): 29. 1999
Family
Cactaceae
Genus
Species
Bisnaga macrodisca
Author
(Mart.) Doweld
Chinese genus
-
Chinese name
-
Primary
Accepted
DescriptionEdit description
Central Spines
1 to 4 (of which one longer and pointing downward), up to 3,5 cm long, stouter and flatter than the radials, often banded.
Description
Ferocactus macrodiscusSN|4317]]SN|4317]] is a medium sized barrel cactus with a depressed-globose stem and blue-green epidermis. Growth from seed is quite rapid and plants will flower when only a few cm across. Flowers are white with pinkish-purple striped petals. Two subspecies are recognized, the nominate form and subsp. septentrionalis (J.Meyrán) N.P.Taylor.
Flowers
Obconic,, 3-4(-5) cm long and about 3-4 cm in diameter. Inner perianth-segments linear-oblong, acute bright purple/pink with pale margins. Stamens and style included.
Blooming Season
From early spring into summer.
Spines
Yellow or red and curved.
Ribs
(13-)16 to 21(-35), somewhat flattened, sometimes acute on the margin, somewhat depressed at the distant areoles.
Stem
Solitary, flat, depressed-globose, or disc-shaped up to 10 cm tall and 30-45 cm in diameter (but up to nearly 60 in some cases).
Radial Spines
6 to 8, more or less curved backward, 2-3 cm long.
Fruits
Nearly spherical, to 4 x 3 cm, red.
Areoles
5 to 10 mm long with yellow felt sunken in notches in the ribs.