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panicle
A panicle is a much-branched inflorescence. Some authors distinguish it from a compound spike, by requiring that the flowers (and fruit) be pedicellate. The branches of a panicle are often racemes. A panicle may have determinate or indeterminate growth.
This type of inflorescence is largely characteristic of grasses such as oat and crabgrass,〔Technically, the inflorescence unit in a grass is the spikelet, but the arrangement of spikelets may be described as a panicle.〕 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.
==See also==
* Thyrse, a branched inflorescence where the main axis has indeterminate growth, and the branches have determinate growth
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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