rhizome


rhizome
rhizomatous /ruy zom"euh teuhs, -zoh"meuh-/, adj.
/ruy"zohm/, n. Bot.
a rootlike subterranean stem, commonly horizontal in position, that usually produces roots below and sends up shoots progressively from the upper surface.
[1835-45; < NL rhizoma < Gk rhízoma root, stem, n. of result from rhizoûn to fix firmly, take root, deriv. of rhíza ROOT1]

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Horizontal underground plant stem capable of producing the upward shoot and downward root systems of a new plant.

This capability allows vegetative (asexual) propagation and enables plants to survive an annual unfavourable season underground. In some plants (e.g., water lilies, many ferns, and forest herbs), the rhizome is the only stem of the plant. In such cases, only the leaves and flowers are readily visible.

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▪ plant anatomy
 in botany, horizontal, underground plant stem capable of producing the shoot and root systems of a new plant. This capability allows the parent plant to propagate vegetatively (asexually) and also enables a plant to perennate (survive an annual unfavourable season) underground. In some plants (e.g., water lilies, many ferns and forest herbs), the rhizome is the only stem of the plant. In such cases, only the leaves and flowers are readily visible.

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Universalium. 2010.

Look at other dictionaries:

  • RHIZOME — En morphologie végétale, un rhizome est une tige souterraine garnie de racines adventives, à feuilles réduites à des écailles ou absentes, et terminée par un bourgeon, souvent d’abord horizontal (portion rhizomateuse à sa première année), puis… …   Encyclopédie Universelle

  • Rhizome — Rhi*zome , n. [Gr. ??? the mass of roots (of a tree), a stem, race, fr. ??? to make to root, pass., to take root, fr. ??? a root: cf. F. rhizome.] (Bot.) A rootstock. See {Rootstock}. [1913 Webster] …   The Collaborative International Dictionary of English

  • rhizome — 1832, from Gk. rhizoma mass of tree roots, from rhizoun cause to strike root, from rhiza root, probably from PIE *wrad branch, root (Cf. L. radix root, O.N. rot root, O.E. wyrt plant, herb; se …   Etymology dictionary

  • rhizome — ► NOUN ▪ a horizontal underground plant stem with lateral shoots and adventitious roots at intervals. ORIGIN Greek rhiz ma, from rhiza root …   English terms dictionary

  • rhizome — [rī′zōm΄] n. [ModL rhizoma < Gr rhizōma < rhizousthai, to take root < rhiza,ROOT1] a creeping stem lying, usually horizontally, at or under the surface of the soil and differing from a root in having scale leaves, bearing leaves or… …   English World dictionary

  • rhizome —    by Felicity J.Colman    Rhizome describes the connections that occur between the most disparate and the most similar of objects, places and people; the strange chains of events that link people: the feeling of six degrees of separation , the… …   The Deleuze dictionary

  • rhizome —    by Felicity J.Colman    Rhizome describes the connections that occur between the most disparate and the most similar of objects, places and people; the strange chains of events that link people: the feeling of six degrees of separation , the… …   The Deleuze dictionary

  • Rhizome — Pour les articles homonymes, voir Rhizome (homonymie). Le rhizome d une plante est la partie souterraine et parfois subaquatique (ex : pour l iris pseudacorus) de la tige de certaines plantes vivaces …   Wikipédia en Français

  • Rhizome — This article is about the botanical term. For other uses, see Rhizome (disambiguation). A harvested ginger rhizome …   Wikipedia

  • rhizome — UK [ˈraɪzəʊm] / US [ˈraɪˌzoʊm] noun [countable] Word forms rhizome : singular rhizome plural rhizomes biology a thick plant stem that grows along the ground and produces roots and new plant growth …   English dictionary


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