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  2. Glossary of leaf morphology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_leaf_morphology

    leaf tip: Tapering to a long point in a concave manner acute: leaf tip or base: Pointed, having a short sharp apex angled less than 90° apiculate: apiculatus: leaf tip: Tapering and ending in a short, slender point aristate: aristatus: leaf tip: Ending in a stiff, bristle-like point asymmetrical: whole leaf: With the blade shape different on ...

  3. Glossary of botanical terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_botanical_terms

    A long, tapering point, especially the apex of an acuminate leaf. acuminate Tapering gradually to a point, with concave sides approaching the point. [13] Contrast acute and mucronate. See also Leaf shape. acute 1. Sharply pointed, but not drawn out, with straight sides approaching the point. [13] Contrast acuminate. See also Leaf shape. 2.

  4. Glossary of plant morphology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_plant_morphology

    Bundle scar – a small mark on a leaf scar indicating a point where a vein from the leaf was once connected to the stem. Caudex – the hard base produced by herbaceous perennials, which serves in overwintering the plant. Caulescent – with a distinctive stem. Cauliflora – with the flowers and fruit on the stem, or trunk, as in Saraca ...

  5. Leaf - Wikipedia

    en.wikipedia.org/wiki/Leaf

    One leaf, branch, or flower part attaches at each point or node on the stem, and leaves alternate direction—to a greater or lesser degree—along the stem. Basal Arising from the base of the plant. Cauline Attached to the aerial stem. Opposite Two leaves, branches, or flower parts attach at each point or node on the stem.

  6. Thorns, spines, and prickles - Wikipedia

    en.wikipedia.org/wiki/Thorns,_spines,_and_prickles

    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.

  7. Cataphyll - Wikipedia

    en.wikipedia.org/wiki/Cataphyll

    The stems of Athrotaxis are covered with small flat pointed leaves called "scale leaves" or "cataphylls".. In plant morphology, a cataphyll (sometimes also called a cataphyllum [1] or cataphyll leaf [2]) is a reduced, small leaf. [3]

  8. Arctostaphylos pungens - Wikipedia

    en.wikipedia.org/wiki/Arctostaphylos_pungens

    Arctostaphylos pungens, with the common name pointleaf manzanita, is a species of manzanita.It is native to the Southwestern United States and to northern and central Mexico, where it grows in chaparral and woodland habitats, and on desert ridges.

  9. Phyllotaxis - Wikipedia

    en.wikipedia.org/wiki/Phyllotaxis

    With an opposite leaf arrangement, two leaves arise from the stem at the same level (at the same node), on opposite sides of the stem. An opposite leaf pair can be thought of as a whorl of two leaves. With an alternate (spiral) pattern, each leaf arises at a different point (node) on the stem. Distichous leaf arrangement in Clivia