Streptocarpus vandeleurii flowers

The strongly evening-scented flowers of Streptocarpus vandeleurii grow in large clusters of up to 36 flowers on a peduncle up to 30 cm long. Many flowers open simultaneously. The five-lobed, green calyces are small at the back of the corolla tubes.

The long-tubular, two-lipped flower is white or creamy white with a faint yellowish patch at the base of its lower lip. The upper lip of the laterally symmetrical flower comprises two smallish lobes, the lower lip three slightly bigger ones.

In picture the styles are exserted from the flowers, positioned close to the upper lip, while the stamens are included, not seen.

Flowering happens in summer.

Pollination is probably largely done by moths.

The long fruit capsules twist as they dehisce when ripe, conforming to the generic name meaning twisted fruit. The small seeds fly away on the wind (Van Wyk and Malan, iNaturalist; http://pza.sanbi.org).