Corolla arrangement in bud (aestivation)

Flora of Australia Glossary — Vascular Plants

Compiled by A. McCusker

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aestivation: the arrangement of sepals and petals or their lobes in an unexpanded flower bud. cf. vernation.

convolute: of the arrangement of corolla lobes in a bud, a form of imbricate aestivation in which each segment has one edge overlapping the adjacent segment, like a furled umbrella.

imbricate: of perianth parts, having the edges overlapping in the bud. cf. valvate.

valvate: of perianth parts, meeting edge to edge in the bud, not overlapping. cf. imbricate.