Scorpioid (inflorescence). Circinately coiled while in bud.
Scurf. Small bran-like scales on the epidermis.
Scymitar-shaped (leaf). Curved with a flat-triangular section, the straighter edge the thickest.
Seed. The ripened ovule, consisting of the embryo and its proper coats.
Segment. One of the parts of a leaf or other like organ that is cleft or divided.
Sepal. A division of a calyx.
Septicidal (capsule). Dehiscing through the partitions and between the cells.
Septum. Any kind of partition.
Serrate. Having teeth pointing forward.
Serrulate. Finely serrate.