| 1 | Agalinis | auriculata | Auricled Gerardia | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 2 | Agalinis | decemloba | Sandplain Gerardia | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 3 | Agalinis | maritima var. maritima | Saltmarsh Gerardia | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 4 | Agalinis | obtusifolia | Blunt-lobed Gerardia | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 5 | Agalinis | purpurea | Purple Gerardia | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 6 | Agalinis | setacea | Thread-leaved Gerardia | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 7 | Agalinis | skinneriana | Skinner's Gerardia | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 8 | Agalinis | tenuifolia var. tenuifolia | Slender-leaved Gerardia | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 9 | Aphyllon | uniflorum | One-flowered Broomrape | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 10 | Aureolaria | flava | Smooth Yellow False Foxglove | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 11 | Aureolaria | laevigata | Entire-leaved Yellow False Foxglove | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 12 | Aureolaria | pedicularia | Fern-leaved Yellow False Foxglove | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 13 | Aureolaria | virginica | Downy Yellow False Foxglove | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 14 | Buchnera | americana | American Bluehearts | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 15 | Castilleja | coccinea | Scarlet Indian Paintbrush | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 16 | Conopholis | americana | Bear Corn | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 17 | Epifagus | virginiana | Beechdrops | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 18 | Melampyrum | lineare | Narrow-leaved Cow-wheat | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 19 | Orobanche | minor | Lesser Broomrape | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 20 | Orthocarpus | bracteosus | Rosy Owl's-clover | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 21 | Pedicularis | canadensis | Canadian Lousewort | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 22 | Pedicularis | lanceolata | Swamp Lousewort | Broom-rape Family | Orobanchaceae | Magnoliopsida |
| 23 | Schwalbea | americana | Chaffseed | Broom-rape Family | Orobanchaceae | Magnoliopsida |