Week 7 Keyed Trees
Identification Key
Tree: Kurrajong (Brachychiton populneus)
Key to Group: 1' (Leaves usually <8 in long, not sword-shaped; leaves simple or compound; leaf veins parallel/netted)
2' (Tree is a confier or broad-leaved tree, not a palm; leaves arise from branches)(
3' (Leaf blades broad and flattened -mostly angiosperm)
5' (Leaves simple (with undivided blades, deeply lobed leaves are still simple)
8' (Leaves attached alternately (1 per node))
9' (Leaf tip pointed or rounded, not notched or truncate)
13 (leaves margin smooth (without teeth or lobes), wavy or not) - Group 8
Group 8 - Trees with alternate, simple, smooth leaves
1' (Flower clusters not resembling bottlebrushes)
3' (Leaves not phyllodes)
4' (Most leaves 3/4 in. wide or greater)
16' (Tree without milky white sap)
18' (Leaves unscented)
19' (Leaves without translucent dots)
23' (Leaves not heart-shaped)
24' (Leaf underside green, light0green, or rust-colored)
27' (Leaf underside surface smooth to the touch)
29' (Leaf upper surface smooth to touch)
30' (Leaf stalks, young leaves, and branchlets hairless)
31 (Leaf stalk swollen at tip where attached to leaf blade)
Species - Brachychiton populneus
Tree 2: Blue Jacaranda (Jacaranda mimosifolia)
Key to group: 1' (Leaves usually <8 in. long, not sword-shaped; leaves simple or compound)
2' (Tree is a conifer or brad-leaved tree, not a palm)
3' (Leaf blades broad and flattened - mostly angiosperms)
5 (Leaves compound (divided into leaflets))
6' (Leaves pinnately or bipinnately compound)
7 (Leaves attached oppositely (2 per node) - Group 5
Group 5 - Trees with pinnately and bipinnately compound, opposite leaves
1 ( Leaves bipinnately compound (twice divided))
2 (Leaves with > 10 pairs of primarily leaflets) - Jacaranda
Species - Jacaranda mimosifolia
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