Plants in this section are small, bushy shrubs which grow to a height of up to 1 m (3 ft), have thick, fleshy, leaves which are triangular in cross-section.

Importantly, their sepals have down-turned, tufts of hair which surround the floral cup.

[4] Schauer did not provide an etymology for Catocalypta but in Ancient Greek, kato means "down below"[5]: 279  and kalyptos means "covered",[5]: 181  probably referring to the tufts of hair covering the floral cup.

[1] When Alex George reviewed the genus in 1991 he retained Meissner's description.

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