| . | Scientific Name | Common Name | Family | Origin |
| 1 | Berberis thunbergii | Japanese barberry | Berberidaceae | Japan |
| 2 | Corylus avellana 'Contorta' | Harry Lauder’s walking stick | Betulaceae | England |
| 3 | Quercus alba | White oak | Fagaceae | Eastern U.S. |
| 4 |
Quercus gambelii | Gambel oak | Fagaceae | Eastern N. America |
| 5 |
Quercus palustris | Pin oak | Fagaceae | Eastern U.S. |
| 6 | Quercus robur | English oak | Fagaceae | Eurasia, N. Africa |
| 7 |
Quercus rubra | Red oak | Fagaceae | Eastern N. America |
| 8 | Ginkgo biloba | Ginkgo | Ginkgoaceae | E. China |
| 9 | Cotoneaster apiculatus | Cranberry cotoneaster | Rosaceae | Western China |
| 10 |
Cotoneaster horizontalis | Rockspray cotoneaster | Rosaceae | Northern Asia |
| 11 |
Cotoneaster lucidus | Hedge cotoneaster | Rosaceae | Northern Asia |
| 12 |
Kerria japonica | Japanese kerria | Rosaceae | China and Japan |
| 13 |
Photinia melanocarpa | Black chokeberry | Rosaceae | Eastern N. America |
| 14 |
Physocarpus sp. | Ninebark | Rosaceae | North America, WA |
| 15 | Styrax japonicus | Japanese snowbell | Styracaceae | China and Japan |
Plants repeated from Hort 232:
| R1 | Abies lasiocarpa | Subalpine fir | Pinaceae | Western U.S.; WA |
| R2 | Pinus contorta | Lodgepole pine | Pinaceae | Western N. America; WA |
Move to Hort 231 Plant List:
| #1 | #2 | #3 | #4 |
|
| #6 | #7 | #8 | #9 | #10 |