| Geum canadense |
White avens |
Live plant |
| Geum virginianum |
Cream avens |
Live plant |
| Gillenia trifoliata |
Bowman's-root, Mountain indian-physic |
Live plant |
| Glyceria striata var. striata |
Fowl mannagrass |
Live plant |
| Goodyera pubescens |
Downy rattlesnake-plantain |
Live plant |
| Hamamelis virginiana |
Witch hazel, Witchhazel |
Live plant |
| Helenium autumnale |
Common sneezeweed, Autumnale sneezeweed |
Live plant |
| Helenium flexuosum |
Southern sneezeweed |
Live plant |
| Helianthus angustifolius |
Narrow-leaved sunflower |
Live plant |
| Helianthus decapetalus |
Thin-leaved sunflower |
Live plant |
| Helianthus divaricatus |
Woodland sunflower |
Live plant |
| Helianthus giganteus |
Tall sunflower, Giant sunflower |
Live plant |
| Helianthus microcephalus |
Small-headed sunflower |
Live plant |
| Helianthus strumosus |
Pale-leaved sunflower |
Live plant |
| Heliopsis helianthoides |
Oxeye sunflower, Oxeye |
Live plant |
| Hepatica acutiloba |
Sharp-lobed hepatica, Sharp-lobed liverleaf |
Live plant |
| Hepatica americana |
Round-lobed hepatica, Round-lobed liverleaf |
Live plant |
| Heracleum maximum |
Cow-parsnip, Common cow-parsnip |
Live plant |
| Heuchera americana |
American alumroot |
Live plant |
| Heuchera villosa |
Hairy alumroot |
Live plant |
| Hexasepalum teres |
Common buttonweed, Rough buttonweed |
Live plant |
| Hibiscus laevis |
Halberd-leaf rose-mallow, Smooth rose-mallow |
Live plant |
| Hibiscus moscheutos |
Swamp rose-mallow, Eastern rose-mallow, Crimson-eyed rose-mallow |
Live plant |
| Hieracium gronovii |
Hairy hawkweed |
Live plant |
| Hieracium paniculatum |
Panicled hawkweed, Alleghany hawkweed |
Live plant |