panicle

n. loose cluster of flowers (Botany)

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".
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Noun
1. compound raceme or branched cluster of flowers
(hypernym) raceme

(n.)
A pyramidal form of inflorescence, in which the cluster is loosely branched below and gradually simpler toward the end.
  

     pelican