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| 1. |
what is vexillary aestivation |
| Answer» Aestivation or estivation refers to the positional arrangement of the parts of a flower within a flower bud before it has opened.Vexilary aestivation is a mode of aestivation in which one large upper petal folds over, and covers, the other smaller petals, as in most papilionaceous plants. | |