Index of plants by genus
Species | Common Name | Family |
Halesia tetraptera | Carolina Silverbell | Styracaceae |
Hamamelis virginiana | American Witchhazel | Hamamelidaceae |
Helenium autumnale | Sneezeweed | Asteraceae |
Helianthemum canadense | Longbranch Frostweed | Cistaceae |
Helianthus angustifolius | Narrow-leaved Sunflower | Asteraceae |
Helianthus decapetalus | Thin-leaved Sunflower | Asteraceae |
Helianthus divaricatus | Woodland Sunflower | Asteraceae |
Helianthus grosseserratus | Sawtooth Sunflower | Asteraceae |
Helianthus microcephalus | Small-headed Sunflower | Asteraceae |
Helianthus mollis | Downy Sunflower | Asteraceae |
Helianthus occidentalis | Western Sunflower | Asteraceae |
Helianthus tuberosus | Jerusalem Artichoke | Asteraceae |
Heliopsis helianthoides | False Sunflower | Asteraceae |
Hepatica acutiloba | Sharp-lobed Hepatica | Ranunculaceae |
Hepatica americana | Round-lobed Hepatica | Ranunculaceae |
Heracleum maximum | Cow Parsnip | Apiaceae |
Heuchera americana | Common Alumroot | Saxifragaceae |
Heuchera richardsonii | Prairie Alumroot | Saxifragaceae |
Hieracium paniculatum | Panicled Hawkweed | Asteraceae |
Hieracium scabrum | Rough Hawkweed | Asteraceae |
Hieracium venosum | Rattlesnake Weed | Asteraceae |
Houstonia caerulea | Little Bluet | Rubiaceae |
Houstonia longifolia | Long-leaved Bluet | Rubiaceae |
Houstonia purpurea | Large Bluet | Rubiaceae |
Hudsonia ericoides | Pine-barren False Heather | Cistaceae |
Hudsonia tomentosa | Sand False Heather | Cistaceae |
Huperzia appressa | Mountain Firmoss | Lycopodiaceae |
Huperzia lucidula | Shining Firmoss | Lycopodiaceae |
Hydrangea arborescens | Wild Hydrangea | Saxifragaceae |
Hydrangia quercifolia | Oakleaf Hydrangea | Saxifragaceae |
Hydrophyllum canadense | Canada Waterleaf | Hydrophyllaceae |
Hydrophyllum virginianum | Virginia Waterleaf | Hydrophyllaceae |
Hylocomium splendens | Stairstep Moss | Hylocomiaceae |
Hypericum ascyron ssp. pyramidatum | Great St. John's Wort | Hypericaceae |
Hypericum canadense | Canadian St. John's Wort | Hypericaceae |
Hypericum densiflorum | Bushy St. John's Wort | Hypericaceae |
Hypericum denticulatum | Coppery St. John's Wort | Hypericaceae |
Hypericum ellipticum | Pale St. John's Wort | Hypericaceae |
Hypericum gentianoides | Orange-grass | Hypericaceae |
Hypericum kalmianum | Kalm's St. John's Wort | Hypericaceae |
Hypericum majus | Greater Canada St. John's Wort | Hypericaceae |
Hypericum mutilum | Dwarf St. John's Wort | Hypericaceae |
Hypericum prolificum | Shrubby St. John's Wort | Hypericaceae |
Hypericum punctatum | Spotted St. John's Wort | Hypericaceae |
Hypericum stragulum | Low St. John's Wort | Hypericaceae |
Hypopitys monotropa | Yellow Pine-sap | Ericaceae |
Hypopitys lanuginosa | Hairy Pine-sap | Ericaceae |
Hypoxis hirsuta | Yellow Star Grass | Amaryllidaceae |
Hystrix patula | Bottlebrush Grass | Poaceae |
© 2004-2009 Michael Hough