Robert W. Freckmann Herbarium University of Wisconsin - Stevens Point

FAMILY GUIDE to TREES

UNDER CONSTRUCTION

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Select all characters you know (no minimum) and press SEARCH. The more choices, the more precise the results. If you do not find what you are looking for, try again eliminating those traits for which you are unsure. The results will be a list of all families that contain species with selected traits occurring in Wisconsin. To search again without loosing the original choices, use the browser's BACK button. To clear the choices, press Reset.

LIST OF CHARACTERS for BROADLEAF TREES

Other resources:
Trees of Wisconsin: UW-Green Bay Trees including Gymnosperm Key
Identifying Trees of Michigan - Dichotomous Key (Michigan State University Forestry Extension)

Leaves
Leaves opposite
Leaves alternate
Leaves simple (1 per leaf stem)
Leaves compound (>1 per leaflet stem)

Inflorescences (flower clusters)
Large and distinct

Pea-like

Catkin a dense spike or racemr bearing many small flowers Small clusters along stem
Large clusters- long, round or flat

Compound Leaf arrangements
3 leaflets

Palmate leaflets

Pinnate (> 3 per leaves stem)

Fruit (seed container, i.e. Pea pod)
Fruit a capsule (in a container - as pod or nutlet)
Fruit a nut (large, hard shell)
Fruit fleshy (berry, drupe, pome)
Fruit cluster of free seeds (not enclosed in a container)
Fruit catkin (see flower above)
Fruits with wings, spines or hooks

Fruit with 1 seed (i.e. Cherry)
Fruit with more than 1 seeds (i.e. Apple)

Leaf edges

Lobed

Smooth Toothed

Seeds (i.e. Pea)
Seeds with wings
Seeds with hairs for dispersal by wind

Bark
Smooth
Peeling or shaggy
With horizontal lines or dots

Thorns
Thorns

Vascular Plants

Plants of Wisconsin

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