(1) The plants would be stringy, flimsy, not having to develop fiberous strength higher gravity requires.

(2) Leaves would be larger and less numerous.

(3) You might have fewer woody trees and bushes, ecology probably favoring dense fiber over actual wood.

(4) Grasses and low-growing stuff probably wouldn't be much different.

(5) Lower gravity means thinner biosphere. Between that and the tendency to thinner, flimsier growth, your canopy height might not actually change.

1. The plants would be stringy, flimsy, not having to develop fiberous strength higher gravity requires.

2. Leaves would be larger and less numerous.

3. You might have fewer woody trees and bushes, ecology probably favoring dense fiber over actual wood.

4. Grasses and low-growing stuff probably wouldn't be much different.

5. Lower gravity means thinner biosphere. Between that and the tendency to thinner, flimsier growth, your canopy height might not actually change.