>Why don’t more plants evolve towards the “grass” strategy? Fun story!!! Seagrasses are like whales, in that their ancestors lived on land, and now they live c

>Why don’t more plants evolve towards the “grass” strategy? Fun story!!! Seagrasses are like whales, in that their ancestors lived on land, and now they live completely submerged. Seagrasses are nowhere closely related to grasses. Quote: 'They just… both did that.' They're at least three, maybe four distinct 'back to the sea' events in the seagrasses, with distinct lineages that went back separately, but show convergent loss of genes. Most seagrasses look a lot like grasses, bringing me back to OP's 'grass strategy' - under water it's a very successful strategy!