| Publication Type: | Book Chapter |
| Year of Publication: | 2006 |
| Authors: | L. E. Urbatsch, Cox P. B. |
| Editor: | Editorial Committee of Flora North America, |
| Book Title: | Flora of North America |
| Volume: | 21 |
| Publication Type: | Book Chapter |
| Year of Publication: | 2006 |
| Authors: | L. E. Urbatsch, Cox P. B. |
| Editor: | Editorial Committee of Flora North America, |
| Book Title: | Flora of North America |
| Volume: | 21 |