Identifying Winter Twigs Prepared by Dennis Deck Terminology - - PowerPoint PPT Presentation

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Identifying Winter Twigs Prepared by Dennis Deck Terminology - - PowerPoint PPT Presentation

Sep 17, 2022 758 likes •1.23k views

Identifying Winter Twigs Prepared by Dennis Deck Terminology http://www.clemson.edu/extfor/publications/bul117/characteristics.htm A Few Terms http://www.cactus-art.biz/note-book/ Dictionary/Dictionary_B/dictionary_bud.htm

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Identifying Winter Twigs

Prepared by Dennis Deck

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Terminology

http://www.clemson.edu/extfor/publications/bul117/characteristics.htm

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A Few Terms

http://www.uwgb.edu/biodiversity/herbarium/ trees/glossary_for_trees01.htm http://www.cactus-art.biz/note-book/ Dictionary/Dictionary_B/dictionary_bud.htm

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Bud Arrangement

Alternate Opposite

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Large Trees

Leaves opposite

  • Bigleaf Maple
  • Oregon Ash

Buds alternate

  • Black Cottonwood
  • Red Alder
  • Oregon Oak
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Bigleaf Maple

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Oregon Ash

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Black Cottonwood

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Red Alder

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Oregon Oak

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Small Trees

Buds opposite

  • Vine Maple
  • Pacific Dogwood

Buds alternate

Armed with Spines

  • Black Hawthorne
  • Black Hawthorne
  • Common Hawthorne

Unarmed

  • Cascara
  • Oregon Crab Apple
  • Bitter Cherry
  • Beaked Hazelnut
  • Birch sp.
  • Willow sp.
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Vine Maple

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Pacific Dogwood

(syn: Western Red Dogwood)

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Cascara

(syn: Chittam, Cascara Buckthorn)

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Beaked Hazelnut

(syn: Western Hazel)

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Bitter Cherry

(syn: Western Cherry )

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Wild Crab Apple

(syn: Pacific Crabapple)

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Western Crabapple

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Black Hawthorne

(syn: Western Hawthorne, Douglas’ Thornapple)

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Common Hawthorn

(syn: Oneseed or European Hawthorn) Introduced, crosses with Black Hawthorn.

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Birch

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Willow

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Tall Shrubs

Leaves opposite

  • Red Elderberry
  • Blue Elderberry

Leaves alternate Leaves alternate

  • Salmonberry
  • Oceanspray
  • Indian Plum
  • Serviceberry
  • Ninebark
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Red Elderberry

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Blue Elderberry

Blue Elderberry

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Salmonberry

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Oceanspray

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Indian Plum

[syn: Osoberry]

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Serviceberry

(syn: Saskatoon)

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Ninebark

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Small Shrubs

Buds opposite

  • Common Snowberry
  • Mock Orange
  • Black Twinberry

Buds alternate

Unarmed

  • Red Huckleberry
  • Red-flowering Currant
  • Spirea
  • Thimbleberry

Buds alternate

Armed with prickles

  • Gooseberry
  • Roses
  • Blackberries
  • Thimbleberry
  • Poison Oak
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Common Snowberry

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Mock Orange

(syn: Lewis’ Mock Orange, Lewis’ Mockorange)

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Black Twinberry

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Gooseberry

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Clustered Wild Rose

Clustered Wild Rose

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Nootka Rose

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Baldhip Rose

(syn: Dwarf or Wood Rose)

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Himalayan Blackberry

Introduced

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Red Huckleberry

Red Huckleberry

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Red-flowering Currant

(syn: Redflower Currant)

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Douglas Spirea

(syn: Hardhack; Rose or Western Spirea)

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Thimbleberry

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Poison Oak

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References

Key to Winter Twigs of the Willamette Valley Handout by Dennis Deck and Ginny Maffitt (2013) Winter Twigs: A Wintertime key to Deciduous Trees and Shrubs of Northwestern Oregon and Western Washington Western Washington Helen Gilkey and Patricia Packard (2001) Winter Twigs of Northwestern Oregon Tryon Creek Park handout by Jean Siddall Winter Twig ID Metro handout