School of Life Sciences, The Chinese University of Hong Kong
[Term Definitions:]
A sharp-pointed, hardened structure from the vascular or woody part of leaf, stipule, root or branch. e.g. Cactaceae, Arecaceae.
School of Life Sciences, The Chinese University of Hong Kong
A sharp-pointed, hardened structure from the vascular or woody part of leaf, stipule, root or branch. e.g. Cactaceae, Arecaceae.
