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Leaf shape varies between orchid species and genera. The description of leaf shape is generalised and subjective. Leaves on a plant can vary in shape and size and between individuals. Users should take a relatively broad interpretation of leaf shape. When leaf margins are crinkled/wavy the leaf shape is best determined when flattened.
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Linear/ensiform: long and narrow with margins more or less parallel, the tip usually pointed. |
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Lanceolate: longer than wide, widest toward the base, the apex tapered to a point. |
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Falcate: uniformly curved (sickle-shaped). |
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Ovate: like a longitudinal section through an egg - broader below the middle. |
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Deltate: with three sides and broadest below the middle (triangular). |
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Cordate: shaped like a heart, broadest toward the base with incurved basal margins. |
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Elliptic: oval and flat in a plane, broadest at the middle and tapered to each end. |
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Oblong: broad with margins straight and parallel. |
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Orbicular: circular or nearly so (round). |
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Obovate/spathulate: like a longitudinal section through an upside down egg - broader above the middle. Resembling a spoon or spatula. |
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Reniform: shaped like a kidney, generally wider than long with incurved basal margins. |
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Terete: like a slender, tapering cylinder, and more or less circular in any cross section. |