| Publication Type: | Book Chapter |
| Year of Publication: | 2006 |
| Authors: | D. K. Trock |
| Editor: | Editorial Committee of Flora of North America , |
| Book Title: | Flora of North America |
| Volume: | 19 |
| Pagination: | 492-494 |
| Publisher: | Oxford University Press |
| City: | New York, NY |
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