Combination search
Looking for commercially available native plant species suitable to your state or region, try the Recommended Species page.
| scientific name | common name(s) | image gallery |
| Helianthemum dumosum | Bushy Frostweed Bushy Rockrose Bushy Rush-rose | |
| Heteranthera dubia | Grassleaf Mudplantain Water Stargrass | |
| Helenium flexuosum | Purplehead Sneezeweed Purple-head Sneezeweed | |
| Helianthus giganteus | Giant Sunflower | |
| Helianthus grosseserratus | Sawtooth Sunflower | |
| Heliopsis helianthoides | Smooth Oxeye Oxeye Sunflower False Sunflower | |
| Heliopsis helianthoides var. helianthoides | Smooth Oxeye | |
| Hedeoma hispida | Rough False Pennyroyal | |
| Helianthus hirsutus | Hairy Sunflower Rough Sunflower | |
| Helianthus ×kellermanii | Sunflower | |
| Helianthus ×laetiflorus | Cheerful Sunflower | |
| Helianthus maximiliani | Maximilian Sunflower Max Sunflower | |
| Heracleum maximum | Common Cowparsnip Cow Parsnip | |
| Helianthus mollis | Ashy Sunflower Downy Sunflower | |
| Heliomeris multiflora | Showy Goldeneye | |
| Heliomeris multiflora var. multiflora | Showy Goldeneye Showy False Goldeneye | |
| Hepatica nobilis | Hepatica | |
| Hepatica nobilis var. acuta | Sharplobe Hepatica Sharp-lobed Hepatica Mountain Hepatica | |
| Hepatica nobilis var. obtusa | Roundlobe Hepatica Round-lobed Hepatica Liverleaf | |
| Helianthus pauciflorus | Stiff Sunflower Prairie Sunflower | |
| Helianthus pauciflorus ssp. subrhomboideus | Stiff Sunflower | |
| Helianthus petiolaris | Prairie Sunflower Plains Sunflower | |
| Helianthus petiolaris ssp. petiolaris | Prairie Sunflower | |
| Helianthemum propinquum | Creeping Frostweed Low Frostweed | |
| Hedeoma pulegioides | American False Pennyroyal | |
| Heteranthera reniformis | Kidneyleaf Mudplantain Kidney-leaf Mud-plantain | |
| Helianthus salicifolius | Willowleaf Sunflower Willow-leaved Sunflower | |
| Hexastylis shuttleworthii | Largeflower Heartleaf Shuttleworth's Ginger | |
| Helianthus strumosus | Paleleaf Woodland Sunflower Paleleaf Sunflower Woodland Sunflower | |
| Heterotheca subaxillaris | Camphorweed Camphor Weed | |
| Helianthus tuberosus | Jerusalem Artichoke Sunchoke | |
| Heuchera villosa | Hairy Alumroot | |
| Heuchera villosa var. villosa | Hairy Alumroot | |
| Hieracium canadense | Canadian Hawkweed | |
| Hieracium canadense var. canadense | Canadian Hawkweed | |
| Hieracium gronovii | Queendevil | |
| Hieracium kalmii | Kalm's Hawkweed | |
| Hieracium kalmii var. fasciculatum | Canadian Hawkweed | |
| Hieracium kalmii var. kalmii | Kalm's Hawkweed | |
| Hieracium marianum | Maryland Hawkweed | |
| Hieracium paniculatum | Allegheny Hawkweed | |
| Hieracium scabrum | Rough Hawkweed | |
| Hieracium scabrum var. scabrum | Rough Hawkweed | |
| Hieracium venosum | Rattlesnakeweed Rattlesnake Weed | |
| Hippuris vulgaris | Common Mare's-tail | |
| Houstonia caerulea | Azure Bluet Quaker Ladies Bluets | |
| Houstonia canadensis | Canadian Summer Bluet | |
| Hottonia inflata | American Featherfoil Featherfoil | |
| Houstonia longifolia | Longleaf Summer Bluet Pale Bluets | |
| Honckenya peploides | Seaside Sandplant | |
| Honckenya peploides ssp. robusta | Seaside Sandplant | |
| Houstonia purpurea | Venus's Pride Large Houstonia Woodland Bluets Purple Bluets Mountain Bluets | |
| Houstonia purpurea var. calycosa | Venus' Pride Purple Bluets | |
| Houstonia purpurea var. purpurea | Venus' Pride Large Purple Bluets | |
| Huperzia appalachiana | Appalachian Firmoss Appalachian Fir-clubmoss Appalachian Clubmoss | |
| Huperzia ×bartleyi | Bartley's Clubmoss Bartley's Firmoss Clubmoss Hybrid Rock Fir-moss | |
| Humulus lupulus var. pubescens | Common Hop | |
| Huperzia selago | Alpine Clubmoss Fir Clubmoss Mountain Clubmoss Mountain Firmoss Northern Fir-moss | |
| Huperzia selago var. selago | Alpine Clubmoss Fir Clubmoss Mountain Clubmoss Mountain Firmoss Northern Fir-moss | |
| Hypericum adpressum | Creeping St. John's-wort | |
| Hydrocotyle americana | American Marshpennywort Water-pennywort | |
| Hypericum ascyron | Great St. John's-wort Giant St. John's-wort | |
| Hypericum boreale | Northern St. John's-wort | |
| Hydrastis canadensis | Goldenseal | |
| Hydrophyllum canadense | Broad-leaved Waterleaf Broadleaf Waterleaf Bluntleaf Waterleaf Blunt-leaved Waterleaf Maple-leaf Waterleaf Maple-leaved Waterleaf Canadian Waterleaf Canada Waterleaf Fool's Seal | |
| Hypericum canadense | Lesser Canadian St. John's-wort | |
| Hybanthus concolor | Eastern Greenviolet Green Violet | |
| Hypericum denticulatum | Coppery St. John's-wort | |
| Hypericum dissimulatum | Disguised St. John's-wort | |
| Hypericum ellipticum | Pale St. John's-wort | |
| Hypericum gentianoides | Orangegrass Pineweed | |
| Hypericum gymnanthum | Claspingleaf St. John's-wort | |
| Hypoxis hirsuta | Common Goldstar Yellow Star-grass Eastern Yellow Star-grass | |
| Hypericum majus | Large St. John's-wort | |
| Hypericum mutilum | Dwarf St. John's-wort | |
| Hypericum punctatum | Spotted St. John's-wort | |
| Hydrocotyle ranunculoides | Floating Marshpennywort Floating Marsh-Pennywort Floating Marsh Pennywort Floating Pennyroyal | |
| Hylotelephium telephioides | Allegheny Stonecrop | |
| Hydrocotyle umbellata | Manyflower Marsh-pennywort Many-flowered Marsh-pennywort Marsh Pennywort Water Pennywort Money Plant | |
| Hydrocotyle verticillata | Whorled Marshpennywort | |
| Hydrocotyle verticillata var. fetherstoniana | Whorled Marshpennywort Water-pennywort Saltpond Pennywort | |
| Hydrophyllum virginianum | Virginia Waterleaf Eastern Waterleaf Shawnee Salad | |
| Hydrophyllum virginianum var. virginianum | Eastern Waterleaf Virginia Waterleaf | |
| Impatiens capensis | Jewelweed Orange Jewelweed Spotted Touch-me-not | |
| Impatiens pallida | Pale Touch-me-not Yellow Jewelweed | |
| Ionactis linariifolius | Flaxleaf Whitetop Aster Stiff Aster Flaxleaf Aster | |
| Ipomoea lacunosa | Whitestar White Morning-glory Pitted Morningglory Small White Morning Glory | |
| Ipomoea pandurata | Man Of The Earth Wild Potato Wild Sweet Potato Manroot | |
| Ipomopsis rubra | Standing Cypress Texas Plume Red Texas Star Red Gilia | |
| Iris prismatica | Slender Blue Iris Slender Blue Flag Coastal Iris | |
| Iris verna | Dwarf Violet Iris Vernal Iris Dwarf Iris | |
| Iris versicolor | Harlequin Blueflag Northern Blue Flag Large Blue Iris | |
| Iris verna var. smalliana | Dwarf Violet Iris Mountain Vernal Iris | |
| Iris virginica | Virginia Iris Great Blue Flag Southern Blue Flag | |
| Iris virginica var. shrevei | Shreve's Iris Virginia Iris Southern Blue Flag Blue Flag | |
| Iris virginica var. virginica | Virginia Iris Blue Flag Iris | |
| Isoetes engelmannii | Engelmann's Quillwort Appalachian Quillwort | |
| Isoetes lacustris | Lake Quillwort Merlin's-grass | |
| Isotria medeoloides | Small Whorled Pogonia Green Fiveleaf Orchid | |
| Isoetes tenella | Spiny-spore Quillwort | |
| scientific name | common name(s) | image gallery |
