Identification Test - Tree Descriptions 3

Front 1

leaves coarsely double toothed, perfect white flowers in clusters on short shoots, prominent thorns

Back 1

Rosaceae (Rose)
Crataegus douglasii
Black hawthorn

Front 2

sharp thorn-like spur shoots, fruit green to yellowish and red pomes (press H)

Back 2

Rosaceae (Rose)
Malus fusca
Pacific crab apple

Hint 2

Front 3

leaves alternate & slightly fuzzy on underside, 1-2 glands at leaf base, large sharp buds and prominent lenicels (press H), bright red fruit

Back 3

Rosaceae (Rose)
Prunus emarginata
Bitter cherry

Hint 3

buds & twig

Front 4

2 distinctive glands on petiole near blade of leaf, buds large & sharp, prominent lenicels (press H)

Back 4

Rosaceae (Rose)
Prunus virginiana
Choke cherry

Hint 4

Front 5

alternate pinnately compound leaves, large buds covered in white wooly hair (press H)

Back 5

Rosaceae (Rose)
Sorbus aucuparia
European mountain ash

Hint 5

Front 6

alternate compound leaves with no terminal leaflet, thorns smooth/sharp and branched, no terminal buds, large (15-40 cm) pods that are flat and twisted (press H) one per stalk

Back 6

Caesalpinaceae (Cassia)
Gleditsia triacanthos
Honey locust
bonus picture: BAD ASS THORNS

Hint 6

Front 7

pinnately compound leaves with terminal leaflet, seed pods 7-10 cm that are flat with several on central stalk (press H)

Back 7

Fabaceae (Pea)
Robinia pseudoacacia
Black Locust

Hint 7

Front 8

mature leaves shiny almost parallel to midvein and distinct peripheral vein, buds club shaped, fruit a capsule that is pear shaped

Back 8

Myrtaceae (Myrtle)
Eucalytpus pauciflora
Snow Gum

Front 9

wavy leaf margin, prominent lenticels, fruit is bright red drupe in cluster

Back 9

Cornaceae (Dogwood)
Cornus nuttallii
Western flowering dogwood

Hint 9

Front 10

prominent veins (make "grooves" in leaf), fruit is berry-like drupe

Back 10

Rhamnaceae (Buckthorn)
Rhamnus purshiana
Cascara

Front 11

large palmately compound leaves, big terminal buds that are sticky, fruit is spiny capsule with large pale spot and not pointed (press H)

Back 11

Hippocastanaceae (Horse-chestnut)
Aesculus hippocastanum
Horse chestnut

Hint 11

Front 12

palmate opposite leaves with roundish shape, fruit is double samara with ~180° split (press H)

Back 12

Aceraceae (Maple)
Acer circinatum
Vine maple

Hint 12

Front 13

palmate double toothed opposite leaves, buds slightly stalked, wrinkled seed case and usually small angle on samaras (press H)

Back 13

Aceraceae (Maple)
Acer glabrum var. douglasii
Douglas maple

Hint 13

Front 14

large leafs with 5 lobes/irregular/opposite arrangement, seedcase hairy/swollen angle ~60-90° (press H)

Back 14

Aceraceae (Maple)
Acer macrophyllum
Bigleaf maple

Hint 14

Front 15

leaves pinnately compound/opposite and highly variable, twigs covered with grey waxy powder that rubs off easily, buds infrapetiolar, small (<45°) angle on samara

Back 15

Aceraceae (Maple)
Acer negundo
Manitoba maple

Front 16

Back 16

Aceraceae (Maple)
Acer rubrum
Red maple

Front 17

opposite leaves palmate with deep sinuses and sharp teeth, pale underside of leaf, ~90° angle on samaras (press H)

Back 17

Aceraceae (Maple)
Acer saccharinum
Silver maple

Hint 17

Front 18

leaf lobes with long tips and opposite, fruits have plump seedcase and ~60° angle between wings (press H)

Back 18

Aceraceae (Maple)
Acer saccharum
Sugar maple

Hint 18

Front 19

leaves pinnately compound and opposite, buds blunt/dark and 4 sided pyramids, fruits a single samara

Back 19

Oleaceae (Olive)
Fraxinus americana
White ash

Hint 19

Front 20

large cordate leaves arranged in whorls, fruit is a LONG cylindrical capsule that is not a bean (press H)

Back 20

Bignoniaceae (Trumpet-creeper)
Catalpa speciosa
Northern catalpa

Hint 20