adventitious - structures or organs developing in an unusual position, as roots originating on the stem, aerial roots - roots occurring above ground or water, apical meristem - undifferentiated, actively dividing tissues growing at the tips of shoots and roots, axil - the point of the upper angle formed between the axis of a stem and any part (usually a leaf) arising from it, bud - undeveloped shoot or flower, bulb - an underground bud with thickened fleshy scales, as in the onion, caudex - the persistent often woody base of a herbaceous perennial, cladode - under cladophyll, a stem with the form and function of a leaf, corm - a short, solid vertical underground stem with thin papery leaves, fibrous roots - a root system with all of the branches approximately equal thickness, as in the grasses and many other monocots, herb - a plant without a persistent above-ground woody stem, stems dying backing to the ground at the end of the growing season, internode - the portion of the stem between two internodes, leaf scar - the scar remaining on a twig after a leaf falls, lenticels - a slightly raised, somewhat corky, often lens shaped area on the surface of a young stem [or older...stem], node - the position in the stem where leaves or branches originate, prop roots - adventitious roots arising from lower nodes and providing support to a stem, rhizome - a horizontal underground stem, root - the portion of the plant axis lacking nodes and leaves and usually found below ground, shoot - one of the two organ systems of a plant; a young stem or branch, shrub - a woody plant, with several stems, that is shorter than a typical tree, stolon - an elongate, horizontal stem creeping along the ground and rooting at the nodes or at the tip and giving rise to a new plant, taproot - the main root axis from which smaller root branches arise; as in most dicots, thorn - a stiff, woody, modified stem with a sharp point, tree - a large woody plant, usually with a single main stem or trunk, tuber (root) - thickened root modified for food storage, tuber (stem) - the thickened portion of a rhizome bearing nodes and buds; an underground stem modified for food storage, vascular bundle scars - the scar from a cluster or group of vascular tissues,

Vegetative Morphology - General

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