http://www.w3.org/ns/prov#value | - Leaves mostly opposite and decussate, sometimes whorled, subopposite, or alternate, often bearing large multicellular glands on the petiole or lamina (usually the abaxial surface or margin) or both; lamina simple, mostly entire (rarely lobed), the margin never truly toothed but sometimes pseudodentate or ciliate at the location of marginal glands or stout bristle-like hairs.
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