Watsonia vanderspuyae inflorescence

The erect inflorescence of Watsonia vanderspuyae is a many-flowered spike twisting in a spiral along its length. It becomes much taller than the leaves. Small side-branches of additional two-sided spikes may emerge from the base of the inflorescence.

The dark coloured bracts subtending the flowers adhere to the flower bases. The stalk zigzags between flowers up the spike (Bond and Goldblatt, 1984; iNaturalist).