Xerophyte

Seeds

About 1 mm long and 0.8 mm wide.

Roots

Fibrous.

Note

It has been named after the Dutchman A. J. Brederoo author of numerous articles in cactus and succulents journals.

Flowers

Buds about 15 mm long and 10 mm wide, with grey-brown wool and long brown hair. Flowers funnel-shaped, 6-7 cm long, as well as broad; flower tube green, with grey wool and long brown hair. Tepals broadly lanceolate, 45 mm long and 7 mm wide, shiny yellow with a special metallic shine; outer tepals smaller with a greenish stripe in the outside. Filaments 12 mm long, yellow, the lowermost slightly reddish at the base. Anthers ochre, very rich in pollen. Pistil c. 25 mm long, 1 mm wide, red. Stigma magenta, with 10 lobes, 5 mm long. Ovary 12 mm long and 5 mm wide.

Spines

Soft. radial spines glassy white, very numerous (35-40), spreading, 5-10 mm long; central 6, dark reddish brown, flexible, upright, three of which stronger up to13-18 mm long, the shorter 10 to 12 mm long.

Ribs

20-22, 9-10 mm hight, 2-3 mm wide, slightly twisted.

Stem

Solitary, globose to pyriform, green, 7-10 cm long and 6-8 cm wide. Crown flattened, concave in the centre, about 5 mm deep, concealed by spines.

Fruits

Ovate, yellowish green, 12 mm long and 7 mm wide.

Areoles

Brown, circular, approximately 1.5 mm wide in the upper part of the stem with white wool, about 3 mm apart.