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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 ...
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.
Leaves are mostly green in color due to the presence of a compound called chlorophyll which is essential for photosynthesis as it absorbs light energy from the Sun. A leaf with lighter-colored or white patches or edges is called a variegated leaf. Leaves can have many different shapes, sizes, textures and colors.
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:
The flowers have seven to nine, often even more, white egg-shaped petals. The sepals are lanceolate. [6] Silene nutans (Nottingham catchfly, Caryophyllaceae) shows ensiform-lanceolate leaves. The slightly rosette-like ground leaves are bigger and of different shape than the sparse, opposite leaves on the stem. [6]
All the "leaves" in this image are bracts. In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis, or cone scale. Bracts are usually different from foliage leaves; they may be of a different size, color, shape, or texture.
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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.