Haworthia blackburniae flowers

The inflorescence of Haworthia blackburniae grows on a simple, cylindrical peduncle, reaching about 22 cm in height. There are erect, keeled bracts below the pedicels, longer than them and clasping the pedicel bases. There are also membranous, sterile bracts lower down on the stem.

About 14 white flowers spiral in a raceme of 12 cm long, the peduncle dark in picture. The funnel-shaped, slightly curved perianth is compressed at the base with brown keels along the centre of each white, free segment. The flower is laterally symmetrical or zygomorphic and about 15 mm long. The lobes of the lower lip segments recurve more than on the upper segments.

The six stamens are of two lengths, included in the corolla tube. The pale green, ovoid ovary is tipped with a curved style less than 1,5 mm long and ending in a head-like stigma.

Flowering happens in about the second half of spring (Vlok and Schutte-Vlok, 2015; Scott, 1985; iNaturalist).