AskDefine | Define panicle

Dictionary Definition

panicle n : compound raceme or branched cluster of flowers

User Contributed Dictionary

English

Noun

  1. A compound raceme.

See also

Extensive Definition

A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers (and fruit) attached along the secondary branches (in other words, a branched cluster of flowers in which the branches are racemes).
This type of inflorescence is largely characteristic of grasses like oat and crabgrass, as well as other plants such as pistachio and mamoncillo. Botanists use the term paniculate in two ways: "having a true panicle inflorescence" as well as "having an inflorescence with the form but not necessarily the structure of a panicle".
A corymb is similar to a panicle with the same branching structure, but with the lower flowers having longer stems, thus giving a flattish top superficially resembling an umbel. Many species in the Maloideae, such as hawthorns and rowans, produce their flowers in corymbs.
A thyrse is a compact panicle having an obscured main axis and cymose subaxes, making its paniculate nature hard to discern. Many Ceanothus species have thyrsiform inflorescences, notably Ceanothus thyrsiflorus.

Note

panicle in Catalan: Panícula
panicle in Czech: Lata
panicle in German: Rispe
panicle in Spanish: Panícula
panicle in Esperanto: Paniklo
panicle in French: Panicule
panicle in Lithuanian: Šluotelė
panicle in Dutch: Pluim (bloeiwijze)
panicle in Polish: Wiecha
panicle in Portuguese: Panícula
panicle in Russian: Метёлка
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