a dichotomousys key is used to identify a plant.

Based on the dichotomous key you provided, a plant with "mant leaves" and "rough edges" would lead us to:

1. You go to 4 because it has "mant leaves."
2. Since the leaflet edges are rough, it corresponds to:

Juglans nigra (Black Walnut).

Yes, based on the dichotomous key you provided, a plant with "mant leaves" (presumably you meant "many leaves") and "rough edges" would indeed lead to Juglans nigra.

Here’s the reasoning again:

1. Since the plant has many broad leaves, you go to step 4.
2. Within step 4, if the leaflet edges are rough, it identifies as Juglans nigra.

If there are any discrepancies or if you meant something else by "mant leaves," please clarify, and I’d be happy to assist further!