====== Value & Tolerance to Competition of Bottomland Hardwoods ======
^Very Intolerant  ^Intolerant          ^ Intermediate    ^Tolerant           ^Very Tolerant         |
^ Highest Value                                                                                 ^^^^|
|Cottonwood       |Cherrybark Oak      |Swamp Chesnut Oak|                   |                      |
|                 |Shumard Oak         |White Oak        |                   |                      |
|                 |White Ash           |Delta Post Oak   |                   |                      |
|                 |American Sycamore   |Green Ash        |                   |                      |
|                 |Sweetgum            |Bald Cypress     |                   |                      |
|                 |Yellow-Poplar       |Pumpkin Ash      |                   |                      |
|                 |Black Walnut        |                 |                   |                      |
^Intermediate Value                                                                             ^^^^|
|                 |Silver Maple        |Bur Oak          |Magnolia           |Hackberry             |
|                 |Nuttall Oak         |Southern Red Oak |                   |Sugarberry            |
|                 |Water Oak           |Pond Cypress     |                   |                      |
|                 |Swamp Tupelo        |Laurel Oak       |                   |                      |
|                 |Pecan               |                 |                   |                      |
|                 |Kentucky Coffeetree |                 |                   |                      |
|                 |Water Tupelo        |                 |                   |                      |
^Low Value                                                                                      ^^^^|
|Willow           |Willow Oak          |Post Oak         |American Elm       |Cedar Elm             |
|                 |Water Hickory       |Overcup Oak      |Winged Elm         |American Beech        |
|                 |River Birch         |Blackgum         |Red Maple          |Hickory spp.          |
|                 |Pin Oak             |Waterlocust      |                   |Red Mulberry          |
|                 |Swamp Cottonwood    |Persimmon        |                   |                      |
|                 |Sweetbay            |                 |                   |                      |
^Weed Species                                                                                   ^^^^|
|                 |Sassafras           |Planertree       |Boxelder           |American holly        |
|                 |                    |Buttonbush       |Privet             |American Hornbeam     |
|                 |                    |                 |Possumhaw          |American hophornbeam  |
|                 |                    |                 |Rough Leaf Dogwood |Hawthorn spp.         |
Source: Adapted from McDermott, 1954b; Putnam, 1951b; Hosner, 1957b; and Putnam et al. 1960.
Regional Silviculture of the United States; Edited by John W. Barrett; The Ronald Press Company, New York.