Xerophyte

Central Spines

1 hooked.

Description

Sclerocactus uncinatusSN|3479]]SN|3479]] (more often listed under its old name Glandulicactus uncinatusSN|3474]]SN|3474]]) is a solitary cylindrical cactus. Three subspecies are recognized, the nominate form, subsp. crassihamatus (F.A.C.Weber) N.P.Taylor and subsp. wrightii (Engelm.) N.P.Taylor .

Areolar Glands

Dome-shaped.

Flowers

Broadly funnel-form-campanulate, diurnal, dull pink to dark red, or russet or brownish purple to almost black, 2-4 cm long, up to 3 cm in diameter.

Blooming Season

In spring.

Ribs

Approx.13, strongly crenate.

Stem

Up to 20 cm tall, 8 cm in diameter.

Radial Spines

7 or 8 reddish straight ones, but the abaxial radial spines are consistently hooked, too.

Fruits

Showy red.

Areoles

Elongated on sexually mature plants.