A dichotomouys key is used to identify a plant.
1a. Leaves are spiny........................Pinus taeda
1b. Leaves are broad.................. Go to 2
2a. Single leaf...........................Go to 3
2b. Many leaves........................Go to 4
3a. Leaf edge is smooth...............Cornus florida
3b. Lead edge is rough.................Ulmus americana
4a. Leaflet edges are smooth........Albizia julibrissin
4b. Leaflet edges are rough..........Juglans nigra
A plant has mnay broad leaves with rough edges. What type of plant is this?
A.) juglans nigra
B.) albizia julibrissin
C.) pinus taeda
D.) cornus florida