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whole leaf: Diamond-shaped rounded: rotundifolius: leaf tip or base: Circular, no distinct point semiterete: 3-D shape: Rounded on one side and flat on the other sagittate: sagittatus: whole leaf: Arrowhead-shaped with the lower lobes folded, or curled downward spatulate: spathulatus: whole leaf: Spoon-shaped; having a broad flat end which ...
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This image is a derivative work of the following images: Image:Leaf_morphology_no_title.png licensed with GFDL 2006-01-18T20:42:26Z Maksim 2163x1977 (618196 Bytes) La bildo estas kopiita de wikipedia:en. La originala priskribo estas: == Summary == Chart of leaf morphology characteristics. sans title. Created by me, User Debivort January 2006.
Leaf Base Shape: Semiamplexicaul – the leaf base wraps around the stem, but not completely. Leaf Blade Apex: Acuminate – narrowing to a point (a term used for other structures, too). Acute – with a sharp, rather abrupt ending-point. Acutifolius – with acute leaves. Attenuate – tapering gradually to a narrow end. Leaf Blade Margins:
For example, the leaves of pine, oak, and cabbage all look very different, but share certain basic structures and arrangement of parts. The homology of leaves is an easy conclusion to make. The plant morphologist goes further, and discovers that the spines of cactus also share the same basic structure and development as leaves in other plants ...
This is an incomplete list of plants with trifoliate leaves. Trifoliate leaves (also known as trifoliolate or ternate leaves) are a leaf shape characterized by a leaf divided into three leaflets. Species which are known to be trifoliate are listed here.
Costapalmate fronds are shaped like the palm of a hand and have a short midrib or costa. Palmate fronds are also shaped like the palm of the hand, but all ribs or leaflets arise from a central area. A hastula is a flap of tissue borne at the insertion of the blade on the petiole on the upper, lower, or both leaf surfaces [8] [9]
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.