Dendrology - Reproductive Structures

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Last updated 3:51 AM on 9/20/26
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46 Terms

1
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<ul><li><p>Resembles magnolia cone</p></li><li><p>Big samaras w/ pine cone vibes</p></li></ul><p></p>

  • Resembles magnolia cone

  • Big samaras w/ pine cone vibes


Liriodendron tulipifera (tulip-poplar)

2
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<ul><li><p>Large and round</p></li><li><p>Spiny husk w/ 2-3 chestnuts inside</p></li></ul><p></p>

  • Large and round

  • Spiny husk w/ 2-3 chestnuts inside


Castanea dentata (American chestnut)

3
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<ul><li><p>Small cones</p></li><li><p>Grow in clusters</p></li><li><p>Matures in one season</p></li></ul><p></p>

  • Small cones

  • Grow in clusters

  • Matures in one season


Thuja occidentalis (northern white-cedar)

4
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<ul><li><p>Egg-shaped cones</p></li><li><p>2 inches long</p></li><li><p>Semi-serotinous</p></li><li><p>Matures in fall of second season</p></li></ul><p></p>

  • Egg-shaped cones

  • 2 inches long

  • Semi-serotinous

  • Matures in fall of second season


Pinus resinosa (red pine)

5
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<ul><li><p>Cylindrical cones</p></li><li><p>4-8 inches long</p></li><li><p>Matures in two years</p></li></ul><p></p>

  • Cylindrical cones

  • 4-8 inches long

  • Matures in two years


Pinus strobus (eastern white pine)

6
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<ul><li><p>Double samaras</p></li><li><p>Wide-spreading wings</p></li><li><p>Clustered</p></li><li><p><strong><u>Mustache</u></strong></p></li></ul><p></p>

  • Double samaras

  • Wide-spreading wings

  • Clustered

  • Mustache


Acer pensylvanicum (striped maple)

7
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<ul><li><p>Double samaras</p></li><li><p>Pair of round seeds</p></li></ul><p></p>

  • Double samaras

  • Pair of round seeds


Acer saccharum (sugar maple)

8
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<ul><li><p>Double samaras</p></li><li><p>Clustered</p></li><li><p>Reddish wings</p></li></ul><p></p>

  • Double samaras

  • Clustered

  • Reddish wings


Acer rubrum (red maple)

9
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<ul><li><p>Small spiny husk w/ two edible husks</p></li></ul><p></p>

  • Small spiny husk w/ two edible husks


Fagus grandifolia (American beech)

10
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<ul><li><p>Catkin open early spring</p></li></ul><p></p>

  • Catkin open early spring


Betula alleghaniensis (yellow birch)

11
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<ul><li><p>Stubby catkins</p></li><li><p>Monoecious (male + female repro)</p></li></ul><p></p>

  • Stubby catkins

  • Monoecious (male + female repro)


Betula papyrifera (paper birch)

12
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<ul><li><p>Fruit contained in a spiny husk</p></li><li><p>Not edible</p></li></ul><p></p>

  • Fruit contained in a spiny husk

  • Not edible


Aesculus hippocastanum (horse chestnut)

13
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<ul><li><p>Fruit in <u>oval</u> husk</p></li><li><p>Fleshy</p></li></ul><p></p>

  • Fruit in oval husk

  • Fleshy


Juglans cinerea (butternut / white walnut)

14
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<ul><li><p>Round nut in thick green husk</p></li><li><p>Spherical</p></li></ul><p></p>

  • Round nut in thick green husk

  • Spherical


Juglans nigra (black walnut)

15
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<ul><li><p>Cones ¾ inches long</p></li><li><p>Hangs like a pendant</p></li></ul><p></p>

  • Cones ¾ inches long

  • Hangs like a pendant


Tsuga canadensis (eastern hemlock)

16
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<ul><li><p>2-4 inches long</p></li><li><p>Upright, erect cones</p></li></ul><p></p>

  • 2-4 inches long

  • Upright, erect cones


Abies balsamea (balsam fir)

17
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<ul><li><p>Monoecious</p></li><li><p>Mealy drupe the size of a pea</p></li></ul><p></p>

  • Monoecious

  • Mealy drupe the size of a pea


Celtis occidentalis (eastern hackberry)

18
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<ul><li><p>Spherical nut with green-brown husk</p></li><li><p>4 wings tapered to a point</p></li><li><p>1 inch long</p></li></ul><p></p>

  • Spherical nut with green-brown husk

  • 4 wings tapered to a point

  • 1 inch long


Carya cordiformis (bitternut hickory)

19
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<ul><li><p>Acorn</p></li><li><p>High in tannins</p></li><li><p>Mature in 2 years</p></li></ul><p></p>

  • Acorn

  • High in tannins

  • Mature in 2 years


Quercus rubra (northern red oak)

20
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<ul><li><p>Small catkins</p></li></ul><p></p>

  • Small catkins


Alnus incana (speckled alder)

21
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<ul><li><p>Acorn</p></li><li><p>2-4x larger than cap</p></li><li><p>Mature in 1 year</p></li></ul><p></p>

  • Acorn

  • 2-4x larger than cap

  • Mature in 1 year


Quercus alba (white oak)

22
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<ul><li><p>Dioecious</p></li><li><p>Single dry, flattened samara</p></li><li><p>Forms in clusters</p></li></ul><p></p>

  • Dioecious

  • Single dry, flattened samara

  • Forms in clusters


Fraxinus americana (white ash)

23
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<ul><li><p>Acorn</p></li><li><p>Small — ½ - ¾ inches</p></li><li><p>Acorn halfway enclosed by cap</p></li><li><p>Shaggy</p></li></ul><p></p>

  • Acorn

  • Small — ½ - ¾ inches

  • Acorn halfway enclosed by cap

  • Shaggy


Quercus velutina (black oak)

24
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<ul><li><p>Winged nutlet</p></li></ul><p></p>

  • Winged nutlet


Carpinus caroliniana (musclewood / American hornbeam)

25
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<ul><li><p>Spherical pea-sized fruit</p></li><li><p>Attached to a leaf-like bract</p></li></ul><p></p>

  • Spherical pea-sized fruit

  • Attached to a leaf-like bract


Tilia americana (American basswood)

26
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<ul><li><p>Ribbed nutlet w/ flaky wings</p></li><li><p>Resembles hops</p></li></ul><p></p>

  • Ribbed nutlet w/ flaky wings

  • Resembles hops


Ostrya virginiana (ironwood)

27
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<p></p>


Acer negundo (boxelder)

28
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<ul><li><p>Seeds dispersed on fluffy cotton</p></li></ul><p></p>

  • Seeds dispersed on fluffy cotton


Populus deltoides (eastern cottonwood)

29
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<ul><li><p>Cone-shaped capsules</p></li><li><p>Contain many cottony seeds</p></li></ul><p></p>

  • Cone-shaped capsules

  • Contain many cottony seeds


Salix nigra (black willow)

30
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<ul><li><p>Small berries</p></li><li><p>Dark bluish — purple/red</p></li></ul><p></p>

  • Small berries

  • Dark bluish — purple/red


Sambucus spp. (elderberry)

31
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<ul><li><p>Winged samara</p></li></ul><p></p>

  • Winged samara


Fraxinus pennsylvanica (green ash)

32
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<ul><li><p>Acute samaras</p></li></ul><p></p>

  • Acute samaras


Acer saccharinum (silver maple)

33
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<ul><li><p>Small edible catkins</p></li></ul><p></p>

  • Small edible catkins


Comptonia peregrina (sweetfern)

34
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<ul><li><p>Catkins, single or paired</p></li></ul><p></p>

  • Catkins, single or paired


Betula populifolia (gray birch)

35
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<p></p>


Populus tremuloides (quaking aspen)

36
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<ul><li><p>Golden yellow capsule containing scarlet berries</p></li><li><p>Found all along the stem</p></li></ul><p></p>

  • Golden yellow capsule containing scarlet berries

  • Found all along the stem


Celastrus orbiculatus (Asiatic bittersweet)

37
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<p></p>


Prunus pensylvanica (pin cherry)

38
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<ul><li><p>Red or orange-red berry</p></li></ul><p></p>

  • Red or orange-red berry


Lonicera spp. (honeysuckle)

39
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<p></p>


Prunus virginiana (choke cherry)

40
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term image

Prunus serotina (black cherry)

41
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<ul><li><p>Pea-sized black drupe</p></li><li><p>White flowers in the spring</p></li></ul><p></p>

  • Pea-sized black drupe

  • White flowers in the spring


Viburnum acerifolia (maple-leaf viburnum)

42
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<ul><li><p>Small woody capsule that forcefully ejects seeds</p></li></ul><p></p>

  • Small woody capsule that forcefully ejects seeds


Hamamelis virginiana (witch-hazel)

43
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<ul><li><p>Nut enclosed in a husk w/ tubular structure</p></li></ul><p></p>

  • Nut enclosed in a husk w/ tubular structure


Corylus cornuta (beaked hazelnut)

44
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<ul><li><p>Small red or dark blue berries</p></li></ul><p></p>

  • Small red or dark blue berries


Viburnum lantanoides (hobblebush)

45
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<ul><li><p>Drupey oval-shaped red berry</p></li></ul><p></p>

  • Drupey oval-shaped red berry


Berberis spp. (barberry)

46
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<ul><li><p>Catkins</p></li><li><p>Cylindrical column of flowers of the same sex</p></li></ul><p></p>

  • Catkins

  • Cylindrical column of flowers of the same sex


Populus grandidentata (bigtooth aspen)