By Andrew massyn (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons (https://upload.wikimedia.org/wikipedia/commons/7/78/Gladiolus_undulatus_Large_White_Afrikaner_Bain%27s_Kloof_Dec_13_%285%29.jpg)
Wild gladiolus
Gladiolus undulatus
This plant has upright, flat, pointed, strap-like leaves and grows up to 1.5m tall. Found on damp mountain slopes of granite and sandstone and near stream banks.