Pachycarpus concolor subsp. transvaalensis flowers

The large flowers of Pachycarpus concolor subsp. transvaalensis are shallowly cup-shaped. They grow upright and short-stalked in small clusters, often only two together, at stem tips or from upper leaf axils.

The flower colour varies in different parts of it from greenish to yellow or brown. Behind the broad, tapering corolla lobes, tiny hairy sepals with pointed tips can just be seen. The pale yellow corolla lobes are free down to the flower base, marked with faint and uneven maroon lines along their inner surfaces. Dark maroon corona lobes spread at the base and arch inwards at their tips, around the whitish style head. The diameter of the flowers varies from 2 cm to 4 cm.

Blooming happens almost throughout the year, barring the colder, dry winter months and more in the warmer season (Pooley, 1998; iNaturalist; iSpot; JSTOR).