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 |
| Hulsea vestita ssp. parryi | Parry's Alpinegold Parry's Sunflower | |
| Hulsea vestita ssp. pygmaea | Pygmy Alpinegold Pygmy Hulsea | |
| Hulsea vestita ssp. vestita | Pumice Alpinegold Pumice Hulsea | |
| Hypericum anagalloides | Tinker's Penny | |
| Hydrophyllum capitatum | Ballhead Waterleaf Dwarf Waterleaf | |
| Hydrophyllum capitatum var. alpinum | Alpine Waterleaf Alpine Breeches | |
| Hymenoxys cooperi | Cooper's Rubberweed | |
| Hypericum concinnum | Goldwire | |
| Hymenoxys cooperi var. canescens | Cooper's Bitterweed Cooper's Rubberweed | |
| Hymenoxys cooperi var. cooperi | Cooper's Bitterweed Cooper's Rubberweed | |
| Hydrophyllum fendleri | Fendler's Waterleaf | |
| Hydrophyllum fendleri var. albifrons | White Waterleaf Fendler's Waterleaf White Fendler's Waterleaf | |
| Hymenopappus filifolius | Fineleaf Hymenopappus | |
| Hymenopappus filifolius var. eriopodus | Fineleaf Hymenopappus Hairy Podded Columbia Cutleaf | |
| Hymenopappus filifolius var. lugens | Columbia Cutleaf Fineleaf Hymenopappus | |
| Hymenopappus filifolius var. megacephalus | Fineleaf Hymenopappus Large Headed Columbia Cutleaf | |
| Hymenopappus filifolius var. nanus | Dwarf Columbia Cutleaf Fineleaf Hymenopappus | |
| Hymenoxys hoopesii | Owl's-claws Orange Sneezeweed | |
| Hymenoxys lemmonii | Lemmon's Goldflower Lemmon's Rubberweed Lemmon’s Bitterweed | |
| Hymenothrix loomisii | Loomis' Thimblehead | |
| Hypericum mutilum | Dwarf St. John's-wort | |
| Hydrophyllum occidentale | Western Waterleaf Squaw-lettuce Waterleaf | |
| Hymenoxys odorata | Bitter Rubberweed | |
| Hydrocotyle prolifera | Whorled Marshpennywort | |
| Hydrocotyle ranunculoides | Floating Marshpennywort Floating Marsh-Pennywort Floating Marsh Pennywort Floating Pennyroyal | |
| Hypericum scouleri | Scouler's St. John's-wort | |
| Hypericum scouleri ssp. scouleri | Scouler's St. John's-wort Scouler's St. Johnswort Scouler’s St. John’s Wort | |
| Hydrophyllum tenuipes | Pacific Waterleaf | |
| Hydrocotyle umbellata | Manyflower Marsh-pennywort Many-flowered Marsh-pennywort Marsh Pennywort Water Pennywort Money Plant | |
| Hydrocotyle verticillata | Whorled Marshpennywort | |
| Hydrocotyle verticillata var. verticillata | Whorled Marshpennywort Water-pennywort Pennywort Money-plant | |
| Hymenothrix wrightii | Wright's Thimblehead | |
| Idahoa scapigera | Oldstem Idahoa Flatpod | |
| Iliamna bakeri | Baker's Globe Mallow Baker's Wild Hollyhock Baker’s Globemallow | |
| Iliamna latibracteata | California Globe Mallow California Wild Hollyhock | |
| Impatiens noli-tangere | Western Touch-me-not | |
| Ionactis alpina | Lava Ankle-aster Lava Aster | |
| Ipomopsis aggregata | Scarlet Gilia Scarlet Standing-cypress Skyrocket Skunkflower | |
| Ipomopsis aggregata ssp. bridgesii | Scarlet Gilia Bridge's Gilia Scarlet Skyrocket | |
| Ipomopsis aggregata ssp. formosissima | Scarlet Gilia Skyrocket | |
| Ipomopsis arizonica | Arizona Ipomopsis Arizona Skyrocket | |
| Ipomopsis congesta ssp. congesta | Ballhead Ipomopsis Ball Headed Gilia Manyflowered Gilia | |
| Ipomopsis congesta ssp. montana | Ballhead Ipomopsis Many Flowered Gilia Mountain Ballhead Gilia Mountain Ballheaded Gilia | |
| Ipomopsis congesta ssp. palmifrons | Ballhead Ipomopsis Ballhead Gilia Shrub Gilia | |
| Ipomopsis effusa | Baja California Ipomopsis Baja Skyrocket | |
| Ipomoea lacunosa | Whitestar White Morning-glory Pitted Morningglory Small White Morning Glory | |
| Ipomopsis polycladon | Manybranched Ipomopsis Manybranched Gilia Branching Gilia Sprawling Skyrocket | |
| Ipomopsis tenuifolia | Slenderleaf Skyrocket Slender-leaf Skyrocket Slender Leaved Ipomopsis Slender-leaved Ipomopsis | |
| Ipomopsis tenuituba | Slendertube Skyrocket | |
| Ipomopsis tenuituba ssp. tenuituba | Slendertube Skyrocket Slender-tube Skyrocket | |
| Iris bracteata | Siskiyou Iris | |
| Iris chrysophylla | Yellowleaf Iris | |
| Iris douglasiana | Douglas Iris Mountain Iris Western Iris | |
| Iris fernaldii | Fernald's Iris | |
| Iris hartwegii | Rainbow Iris Sierra Iris | |
| Iris hartwegii ssp. australis | Rainbow Iris Sierra Iris Southern Hartweg's Iris | |
| Iris hartwegii ssp. columbiana | Rainbow Iris Sierra Iris Tuolumne Iris | |
| Iris hartwegii ssp. hartwegii | Rainbow Iris Hartweg's Iris Sierra Iris | |
| Iris hartwegii ssp. pinetorum | Hartweg's Yellow Pine Iris Rainbow Iris Sierra Iris | |
| Iris innominata | Del Norte County Iris | |
| Iris macrosiphon | Bowltube Iris Ground Iris | |
| Iris missouriensis | Rocky Mountain Iris Western Blue Flag | |
| Iris munzii | Munz's Iris | |
| Iris purdyi | Purdy's Iris | |
| Iris tenax | Toughleaf Iris Tough-leaf Iris Oregon Iris | |
| Iris tenuissima | Longtube Iris | |
| Iris tenax ssp. klamathensis | Klamath Iris Orleans Iris | |
| Iris tenuissima ssp. purdyiformis | Longtube Iris Purdy's Iris Slender Iris Slender Tubed Iris | |
| Iris tenuissima ssp. tenuissima | Longtube Iris Slender Iris | |
| Iris thompsonii | Thompson's Iris | |
| Isoetes tenella | Spiny-spore Quillwort | |
| Ivesia aperta | Sierra Valley Mousetail | |
| Ivesia aperta var. aperta | Sierra Valley Ivesia Sierra Valley Mousetail | |
| Ivesia aperta var. canina | Dog Valley Ivesia Sierra Valley Mousetail | |
| Ivesia argyrocoma | Silver-hair Ivesia Silver-haired Ivesia Silverhair Mousetail | |
| Ivesia arizonica | Rock Whitefeather | |
| Ivesia arizonica var. arizonica | Arizona Whitefeather Yellow Ivesia Yellow Purpusia | |
| Iva axillaris | Povertyweed | |
| Ivesia baileyi | Bailey's Ivesia | |
| Ivesia baileyi var. baileyi | Bailey's Ivesia | |
| Ivesia baileyi var. beneolens | Bailey's Ivesia Owyhee Ivesia | |
| Ivesia callida | Tahquitz Ivesia Tahquitz Mousetail | |
| Ivesia campestris | Field Ivesia Field Mousetail Kaweah Ivesia | |
| Ivesia gordonii | Gordon's Ivesia | |
| Iva hayesiana | San Diego Marsh Elder San Diego Povertyweed | |
| Ivesia jaegeri | Jaeger's Mousetail Jaeger’s Ivesia | |
| Ivesia kingii | Alkali Ivesia Ash Meadows Ivesia King's Mousetail King’s Ivesia | |
| Ivesia longibracteata | Castle Crags Ivesia Longbract Mousetail | |
| Ivesia lycopodioides | Clubmoss Ivesia Clubmoss Mousetail | |
| Ivesia lycopodioides ssp. lycopodioides | Clubmoss Ivesia Clubmoss Mousetail | |
| Ivesia lycopodioides ssp. megalopetala | Big-petaled Ivesia Clubmoss Mousetail Rock Creek Ivesia | |
| Ivesia lycopodioides ssp. scandularis | Clubmoss Ivesia Clubmoss Mousetail White Mountains Ivesia | |
| Ivesia muirii | Granite Mousetail Muir’s Ivesia | |
| Ivesia paniculata | Ash Creek Ivesia Ash Creek Mousetail | |
| Ivesia patellifera | Kingston Mountain Mousetail Kingston Mountains Ivesia | |
| Ivesia pickeringii | Pickering’s Ivesia Silky Mousetail | |
| Ivesia pygmaea | Dwarf Ivesia Dwarf Mousetail | |
| Ivesia santolinoides | Sierra Ivesia Sierra Mousetail Silver Mousetail | |
| Ivesia saxosa | Rock Five Finger Rock Ivesia Rock Mousetail | |
| Ivesia sericoleuca | Plumas Ivesia Plumas Mousetail | |
| scientific name | common name(s) | image gallery |
