Xerophyte

Central Spines

None.

Seeds

Brown.

Description

Mammillaria polyedraSN|33807]]SN|33807]] is a low growing cactus, solitary at first, later branching to form colonies or cushions. It can only be identified when in flowers, because in its vegetative state it is difficult to separate from other species in the polyedra group.

Tubercles

12 mm long, pyramidal, flattened dorsally, 6- or 7-angled, pointed with latex; axils of tubercles with wool and bristles.

Flowers

Inconspicuous, pink or reddish, to 25 mm long. Inner perianth-segments short-acuminate. Anthers white. Style white, longer than the stamens. Stigma-lobes 8, greenish

Stem

Globose to short cylindrical or somewhat thicker above, deep green, to 30 cm high, 10-12 cm in diameter.

Radial Spines

4-6, ascending, straight, short, brownish yellow or greyish with purplish tips, 6-25 mm long, upper ones longest and strongest.

Fruits

Wide, club shaped, red.