rhipidium


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rhipidium

[ri′pid·ē·əm]
(botany)
A fan-shaped inflorescence with cymose branching in which branches lie in the same plane and are suppressed alternately on each side.
References in periodicals archive ?
A rhipidium is a (cymously) built partial inflorescence in which the prophyll of a lateral axis subtends a new lateral axis, each axis ending in a flower.
This phenomenon has also been explained by recaulescence, so that the "spikelet" is seen as a sympodial inflorescence unit resembling a rhipidium (e.