Astrophytum ornatum f. mirbelii
Kakteen (H. Krainz) Lief. 31-32: C VIe. 1965
Family
Cactaceae
Genus
Species
Astrophytum ornatum f. mirbelii
Author
(Lem.) Krainz in Krainz
Chinese genus
星球属
Chinese name
-
Accepted
DescriptionEdit description
Central Spines
Usually 1 rather larger.
Flowers
At apex, large, lemon-yellow 7-12 cm broad, inner perianth segments broadly oblong, with a broad, more or less serrated apex, tube short woolly, scale on ovary, dark and very narrow.
Ribs
It has 5 to 10 (generally 8) straight or frequently spiralling, rather prominent, strongly compressed, more or less sinuate and crenate .
Stem
The stem is solitary, globose when young, shortly columnar with age, 30 to 120 cm (or more) high, 15-30 cm across, greyish-green to dark-green with dense white flakes in covering more or less uniformly the epidermis.
Radial Spines
5-11 stout, 2-4 cm long usually straight, subulated or ± laterally compressed, amber yellow, later brown and finally grey.
Areoles
1 to 5 cm apart, at first yellowish-white felted, later grabrescent.