Xerophyte

Central Spines

1 (or 2), robust, awl-like.

Seeds

1.3-1,4 mm large, cap-like, rough.

Note

This member of the Cactaceae family was given this name in honour of Prof. Dr. Erich Werdermann.

Flowers

Usually emerging from the top of the plant rather than at lower regions of stems. When numerous forming a ring around the apex. White about 20-22 cm long.

Spines

The spines looks like a mix of Trichocereus taquimbalensisSN|8725]]SN|8725]] and Trichocereus terscheckiiSN|8750]]SN|8746]], hardly distinguishable as radial and central, between 5 and 10 cm long, straw-coloured, yellowish brown or horn coloured.

Ribs

About 10, later increasing to 14 or more, 2 cm high.

Stem

Trunks to 1 m high and 65 cm in diameter, branches arising apically, more or less erect up to 15 cm thick very dark green.

Radial Spines

8.

Fruits

Spherical 3.5-4 cm in diameter with many white or black hairs.

Areoles

2.5 cm apart.