Hort 231: Partial Review for the FINAL ID Lab Exam (link to Midterm Review; link to Exams page)

Hort 231 Species Comparisons
Ash
Mahonia
Birch
Maple
Cotoneaster
Oak
Dogwood
Spirea
Hawthorn
Viburnum


Final ID Self-Quiz
Links to photos at the Oregon State University Dept. of Horticulture. Landscape Plants web site.
To see if you are correct: look for the name of the photo in the URL for the link. 
The first 2 letters of the name are the first 2 letters of the genus, the next 2 letters are the first 2 letters of the specific epithet;
any subsequent letters indicate the rest of the name, such as a cultivar or subspecies.
For example, <http://www.orst.edu/dept/ldplants/images/mane5.htm> shows a picture of Mahonia nervosa.
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53
54 55
56 57 58 59 60
61 62
63
64
65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80


More Species Comparisons
From: Oregon State Univ., Dept. of Horticulture, Landscape Plants web site.
Mahonia leaves
American elm vs. zelkova leaf


Winter Twigs, Fruit, or Buds
Click "Show Matches" to see photos of many Hort 231 plants and others from:
Winter Twig Identification (WTU Herbarium Image Collection, Burke Museum).
They also have great photos of leaves, plants, flowers, etc.
Click the following links to go directly to images of twigs of specific plants.
Acer circinatum
Acer glabrum Ailanthus altissima Amelanchier alnifolia
Gleditsia triacanthos
Larix sp.
Cornus sericea Elaeagnus angustifolia
Robinia pseudoacacia
Betula occidentalis
Rosasp.
Rhus glabra
Populus tremuloides
Clematis sp. Platanus sp. Holodiscus discolor

Virginia Lohr , Professor, E-mail: lohr@wsu.edu
Department of Horticulture
Washington State University
Pullman, Washington 99164-6414 U.S.A.
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Page updated March 11, 2014