Vexillary or papilionaceous aestivation in pea and bean flowers involves five petals: a large standard overlapping two lateral wings, which overlap two small anterior keels.
Vexillary or papilionaceous aestivation in pea and bean flowers involves five petals: a large standard overlapping two lateral wings, which overlap two small anterior keels.
| Text | In pea and bean flowers, there are five petals, the largest (standard) overlaps the two lateral petals (wings) which in turn overlap the two smallest anterior petals (keel); this type of aestivation is known as vexillary or papilionaceous. |
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