Figure 1.

The floating aquatic plant Greater Duckweed, Spirodela polyrhiza (a) and a late birth‐order mother producing a regular frond as her first daughter (from the right), and a dense overwintering “turion” frond (from the left), as her second daughter (b). The regular daughter frond is producing a turion granddaughter. Under the same conditions, an early birth‐order mother of the same genotype would produce only regular fronds