2.  Blade ◦ Flat expanding part of leaf  Bud ◦ Growing tip of stem  Leaflet ◦ Blade of a compound leaf  Leaf scar ◦ Mark where leaf WAS attached.

3.  Node ◦ Place on stem where leaf is attached  Petiole ◦ Leaf stalk  Sessile ◦ Leaf or leaflet withOUT a stalk  Veins ◦ Vascular tissue of leaf (think your own veins).

5.  Adherent ◦ Grown together  Alternate ◦ Leaf arrangement, leaflet offset from one side to the other side  Compound leaf ◦ Has two or more distinct leaves or leaflets  Opposite ◦ Leaflets are directly across from each other

6.  Palmate ◦ Veins or leaflets spreading from a common center  Pinnate ◦ Arranged on two sides  Whorl ◦ Three or more leaves arising at the same node

10.  Acute ◦ Sharp, pointed  Awl shaped ◦ Tapering to a sharp point  Cordate ◦ Heart shaped  Elliptical ◦ Rounded about equally at each end

11.  Entire or smooth ◦ Margin without teeth or lobes, widest below middle  Lanceolate ◦ Long and narrow with wider base  Linear ◦ Long and narrow WITH parallel margins  Oblong ◦ At least twice as long as wide

12.  Obovate ◦ Broadest above the middle  Ovate ◦ Egg shaped, broadest below the middle  Serrate ◦ Has teeth, think saw blade  Undulate ◦ Has a wavy edge

15.  Aromatic ◦ Pleasant smelling  Ciliate ◦ Margin (edge) has hairs  Conifer ◦ Doesn’t lose leaves each year (has cones)  Deciduous ◦ Sheds all leaves each year  Samara ◦ Type of winged fruit

17.  Trees of Wisconsin Trees of Wisconsin ◦ http://www.uwgb.edu/biodiversity/herbarium/trees /tree_list_by_common.htm  Leaf ID Leaf ID ◦ http://www.uwsp.edu/cnr/leaf/Treekey/tkframe.ht m  Tree Leaf ID Tree Leaf ID ◦ http://www.fw.vt.edu/dendro/forsite/key/page1.ht m

19.  Includes Birches, Alders, and Hazelnuts  Simple alternate serrated leaves  Used for some woodwork- veneers and cabinets  Pulp and some twigs used for wintergreen  Fire starting  Examples- Paper Birch, Yellow Birch.

21.  Includes- Beeches, Chestnuts, and OAKS  Most have simple alternate leaves  Produces a nut or an acorn  Oaks- divided into two groups  Red and White Oaks.

23.  Mostly pointed lobed leaves  Acorns bitter with inside of shells having hair  Examples- Red Oak and Pin Oak (deep lobes).

25.  Mostly rounded lobed leaves  Acorns are sweet with inside of shells hairless  Examples- White Oak and Bur Oak (acorn shells are fringed, leaves slightly larger).

27.  Examples- American Elm, Slippery Elm, and Chinese Elm (introduced)  Leaves are simple, alternate and serrated  Pinnately veined, short stemmed  Often lopsided base  Fruit a Samara.

29.  Includes Maples and Box Elders  Paired winged seeds (helicopters).

30.  Examples- Sugar, Red, and Silver Maple  Leaves opposite  Leaves palmately lobed and veined.

32.  Pinnate Compound leaves  Pinnate veins.

34.  Examples- White, Green, and Black Ash  Almost always opposite and pinnately compound  Difficult for exact ID  Fruit is a Samara with a single wing.

36.  Consists of Willows, Poplars and Aspens  Leaves simple, alternate, deciduous  Dioecious- separate male and female trees.

37.  Examples- Black, Peachleaf, Sandbar, and Pussy Willow  Weeping Willow is an introduced species  Leaves usually longer than wide  Single bud cover  Exact identification is difficult.

39.  Examples- Cottonwood, Balsam Poplar, Quaking Aspen  Broad, alternate leaves with long stems  Serrated (toothed)  Multiple scale covers.  Rapid growth with soft wood.

41.  Includes Walnuts, Hickories  Leaves are alternate and pinnately compound  Wood highly valued.

42.  Examples- Black Walnut, Butternut  Fruit (nut) when ripens husk does not split  Shell corrugated  Chambered pith  Many leaflets.

44.  Examples- Bitternut hickory, Pecan (not abundant naturally in the area)  Few leaflets  Husk splits when ripe  Shell smooth  Pith solid.

46.  Contains Apple, Cherry, Plum, Peach, Pear…  and Mountain Ash.

48.  Contains plants such as clover and alfalfa as well as Acacia trees and Honeylocusts.

50.  Contains Basswoods.

52.  Buckthorn  Dogwood  Olive  Catalpa  Honeysuckle

55.  Contains: Pines (hard and soft), Larches (Tamaracks), Spruces, Hemlocks, Douglas Firs, and True Firs  Leaves evergreen- except Larches are deciduous  Leaves needle like or linear; singular, in bundles, or in brushlike clusters.  Fruit in the form of a woody cone.

56.  Example- White Pine  Needles are usually in bundles of 5 (occasionally 1-4)  Sheath on needles is shed  Cones are usually stalked and scales do NOT have prickles.

58.  Examples- Red Pine (Norway), Jack Pine, Lodgepole Pine, and Ponderosa Pine  Needles are usually in bundles of 2 or 3 (occasionally 5-8)  Sheath stays on needles  Cones usually with thick woody scales with prickles.

60.  Example- Tamarack  Deciduous  Soft, flat needles grow in clusters  Cones.5 to 2 inches long, grow UPRIGHT, stay attached for several years.

62.  Examples- Black Spruce, White Spruce, Blue Spruce  Sessile, rigid, and often prickly needles  Needles often have a square cross section  Needles are singular on woody peg like base  Cones are pendant (hang down) with light woody scales.

64.  Example- Eastern Hemlock  Needles usually flat  Cone hangs from tip of branch.

66.  Example- Douglas Fir, Fraser Fir  Needle with a petiole  Small, Raised leaf scar  Flat needles  Pendant cones with bracts.

68.  Example- Balsam Fir  Sessile Needles  Needle lacks petiole  Silvery lines on underside of needle  Needle flattened  Branch has round depressed leaf scars  Cone is UPRIGHT and disintegrates as it matures.

70.  Examples- Cedar, Cypress, Junipers  Scalelike foliage  Most of the trees in this family have aromatic wood.

71.  Example- White Cedar (foliage used for tea and bark for vitamin C), Western Redcedar  Have flattened branchlets.

73.  Examples- Common Juniper, Eastern Red cedar  Have rounded branchlets and may be awl like (pointed)  Cones are semi fleshy and often blue or reddish-brown,.2 inches in diameter (berries).

75.  Similar to Junipers but with large woody cone.