Do plant leaves give utility signals?

I am focusing on broad leaf plants.

Virginia Great Dismal Swamp

baccharis

Greater Virgina

azalea

buttercup

basswood?

crossvine?

water oak

red oak?

Star Looking Family

cranesbill

Virginia Introduced Plants

Acuba

Virginia star cilantro cousin

Virginia wild cilatro meadow

neverdie?

rutabaga?

non native wax myrtle (bay berry)?

ginko?

sycamore

Japanese maple?

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