| title | media type | ISBN-13 | year of publication |
|---|
| Field Guide to the Wild Orchids of Texas | Paperback | 978-0-8130-3159-0 | 2008 |
| Fringed Orchids in Your Pocket: A Guide to Native Platanthera Species of the Continental United States and Canada | Map | 978-1-58729-812-7 | 2009 |
| Grass-pinks and Companion Orchids in Your Pocket: A Guide to the Native Calopogon, Bletia, Arethusa, Pogonia, Cleistes, Eulophia, Pteroglossaspis, and | Pamphlet | 978-1-58729-700-7 | 2008 |
| Grass-pinks and Companion Orchids in Your Pocket: A Guide to the Native Calopogon, Bletia, Arethusa, Pogonia, Cleistes, Eulophia, Pteroglossaspis, and ... United States and Canada | Map | 978-1-58729-699-4 | 2008 |
| Ladies'-tresses in Your Pocket: A Guide to the Native Ladies'-tresses Orchids, Spiranthes, of the United States and Canada | " | 978-1-58729-656-7 | 2008 |
| Lady's-slippers in Your Pocket: A Guide to the Native Lady's-slipper Orchids, Cypripedium, of the United States and Canada | Pamphlet | 978-1-58729-655-0 | 2008 |
| The Wild Orchids of North America, North of Mexico | Hardcover | 978-0-8130-2571-1 | 2003 |
| The Wild Orchids of North America, North of Mexico | Paperback | 978-0-8130-2572-8 | 2003 |
| Twayblades and Adder's-mouth Orchids in Your Pocket: A Guide to the Native Liparis, Listera, and Malaxis Species of the Continental United States and Can | Map | 978-1-58729-702-1 | 2008 |
| Wild Orchids of Florida: With References to the Atlantic and Gulf Coastal Plains | Paperback | 978-0-8130-2933-7 | 2006 |
| Wild Orchids of Florida: with References to the Atlantic and Gulf Coastal Plains | " | 978-0-8130-2439-4 | 2001 |
| Wild Orchids of the Canadian Maritimes and Northern Great Lakes Region | " | 978-0-8130-2911-5 | 2006 |
| Wild Orchids of the Northeastern United States: A Field Guide | " | 978-0-8014-8341-7 | 1997 |
| Wild Orchids of the Northeast: New England, New York, Pennsylvania, and New Jersey | " | 978-0-8130-3034-0 | 2007 |
| Wild Orchids of the Pacific Northwest and Canadian Rockies | " | 978-0-8130-2900-9 | 2006 |
| Wild Orchids of the Prairies and Great Plains Region of North America | Turtleback | 978-0-8130-2975-7 | 2006 |
| Wild Orchids of the Southeastern United States, North of Peninsular Florida | Paperback | 978-0-8130-2749-4 | 2004 |
| Woodland and Bog Rein Orchids in Your Pocket: A Guide to Native Platanthera Species of the Continental United States and Canada | Map | 978-1-58729-862-2 | 2010 |