Glossary of Botanical Terms:
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equitant: of leaves, folded longitudinally with the two inner surfaces (representing the upper leaf surface) fused except towards the base where it clasps another leaf on the opposite side of the stem; one margin represents the leaf keel and the lamina is vertically orientated; as in Iris. Leaf arrangement, Fig. 2 E; cross section through equitant arrangement Fig. 11 B.
Fig. 2. Leaf Arrangement. A, alternate; B, alternate and 2-ranked; C, opposite; D, opposite and decussate; E, equitant; F, whorled; G, pseudowhorled; H, imbricate; I, basal; J, fascicled.
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