Xerophyte

Central Spines

2-5, usually 4, stiff, subporrect, acicular, , straight or slightly curved, 3-6.5 mm long, at first pinkish or reddish brown with darker tip, later towards the base.

Seeds

Brown.

Description

Mammillaria albilanataSN|15162]]SN|15150]] subs. reppenhagenii (Mammillaria reppenhageniiSN|15150]]SN|15162]]) is a solitary or more rarely offsetting, cactus species typically so densely spined and woolly in the tubercular axils that the epidermis is almost completely concealed. Each head is surrounded by a complete ring of star-like purple-pink flowers.

Roots

Fibrous.

Tubercles

Pale grey-green, conic, spiralling, firm, about 5 mm in diameter at base, with watery sap (not milky), in 13/21 or 21/34 spirals. Axils with short persistent white wool.

Blooming Season

Late spring onwards (Flowering period in Europe

Stem

Spherical to shortly columnar, elongate or shortly cylindrical, sunken apically, to 9(-15) cm high and about 6 cm in diameter, the apex sunken and filled with white wool.

Radial Spines

(19-)22-23(-26), radiating, setaceous, straight to irregularly curved, the lateral longest, chalky white, 2-3 mm long.

Fruits

Clavate, pink to red.

Areoles

Oval, 2 x1 mm, with copious persistent white wool, the whole 3-4 mm in diameter.