The culms of the flowers have curved spines, which are downward curved. There are also very dense hairs on its stem. However, the stem of cotyledon nudiflora also has curved spines, which is 5-15mm long, but there is no villus or few villi on the stem.
The leaves of the flowers are ovate and covered with thick villi. Besides, its top is not very sharp. The leaves of cotyledons are ovate or ovate lanceolate, with no villi on the top, sparse villi on the bottom, and sharp tips on the top.
The flowers of phyllodes are relatively small, usually three in clusters, and the bracts are mostly red. The length of cotyledon is about 2.5-3.5cm, the width is about 2cm, the bracts are purple or magenta.
