The flowers of Sansevieria pearsonii show why the plant was earlier classified among the lilies, a member of the Liliaceae family. After also spending time in the Dracaenaceae or dragon-tree family, it is currently part of Asparagaceae.
Without passports, some plants will keep travelling within the botanical classification system. This happens whenever the Angiosperm Phylogeny Group replaces its APG classification, currently APG III of 2009 with a later version, moving plants in accordance with the growing body of botanical knowledge.
This is progress. It is also progress when people exercise their minds to memorise new information about the changing world they live in.
The flowers of S. pearsonii are small and many, growing from midwinter to early spring in spaced clusters on a sturdy green stem, shorter than the leaves. The flower shape is narrowly tubular with narrow, oblong tepals that shine and recurve; each with a dark line running along its centre to a rounded tip.
Flower colours of this species vary. Some are cream, pale brown or pale blue. The flowers are often open at night, maybe moth pollinated (Germishuizen and Fabian, 1982; Wikipedia; www.zimbabweflora.co.zw).