Corymb


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 such as oat and crabgrass,[1] 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.

Notes

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