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A branch, also called a ramus in botany, is a stem that grows off from another stem, or when structures like veins in leaves are divided into smaller veins. [ 1 ] History and etymology
Acrocarpous – produced at the end of a branch. Acutangular – a stem that has several longitudinally running ridges with sharp edges. Adventitious buds – a bud that arises at points on the plant other than at the stem apex or leaf axil. Alate – having wing-like structures, usually on the seeds or stems, as in Euonymus alata.
The stem of a plant, especially a woody one; also used to mean a rootstock, or particularly a basal stem structure or storage organ from which new growth arises. Compare lignotuber. caudiciform Stem-like or caudex-like; sometimes used to mean "pachycaul", meaning "thick-stemmed". caudicle diminutive of caudex.
Branched: Aerial stems are described as being branched or unbranched. Bud: An embryonic shoot with immature stem tip. Bulb: A short vertical underground stem with fleshy storage leaves attached, e.g. onion, daffodil, and tulip. Bulbs often function in reproduction by splitting to form new bulbs or producing small new bulbs termed bulblets.
[1] [2] In its broadest sense, a tree is any plant with the general form of an elongated stem, or trunk, which supports the photosynthetic leaves or branches at some distance above the ground. [3] Trees are also typically defined by height, [ 4 ] with smaller plants from 0.5 to 10 m (1.6 to 32.8 ft) being called shrubs , [ 5 ] so the minimum ...
Compound inflorescences are composed of branched stems and can involve complicated arrangements that are difficult to trace back to the main branch. A kind of compound inflorescence is the double inflorescence, in which the basic structure is repeated in the place of single florets. For example, a double raceme is a raceme in which the single ...
Botany is a natural science concerned with the study of plants.The main branches of botany (also referred to as "plant science") are commonly divided into three groups: core topics, concerned with the study of the fundamental natural phenomena and processes of plant life, the classification and description of plant diversity; applied topics which study the ways in which plants may be used for ...
Idealized structure of lignin from a softwood Lignin is a class of complex organic polymers that form key structural materials in the support tissues of most plants. [ 1 ] Lignins are particularly important in the formation of cell walls , especially in wood and bark , because they lend rigidity and do not rot easily.