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scientific name | common name(s) | image gallery |
Hemizonia congesta ssp. vernalis | Hayfield Tarweed | |
Hemizonia fasciculata | Clustered Tarweed | |
Hemizonia fitchii | Fitch's Spikeweed Fitch's Tarweed | |
Hemizonia floribunda | Tecate Tarweed | |
Hemizonia kelloggii | Kellogg's Tarweed | |
Hemizonia lobbii | Threeray Tarweed | |
Hemizonia paniculata | San Diego Tarweed | |
Henrya insularis | Island Renegade | |
Hepatica nobilis | Hepatica | |
Hepatica nobilis var. acuta | Sharplobe Hepatica Sharp-lobed Hepatica Mountain Hepatica | |
Hepatica nobilis var. obtusa | Roundlobe Hepatica Round-lobed Hepatica Liverleaf | |
Heracleum maximum | Common Cowparsnip Cow Parsnip | |
Herbertia lahue | Prairie Nymph Herbertia | |
Herbertia lahue ssp. caerulea | Prairie Nymph Herbertia | |
Herissantia crispa | Bladder Mallow Bladder-mallow Bladdermallow Curly Herissantia | |
Hermannia pauciflora | Hierba del Soldado Santa Catalina Burstwort | |
Hermannia texana | Texas Burstwort Mexican Mallow | |
Hesperaloe funifera | Giant Hesperaloe New Mexico False Yucca Samandoce | |
Hesperaloe parviflora | Red Yucca Coral Yucca Red-flowered False Yucca Redflower False Yucca Yellow Yucca Hummingbird Yucca Samandoque | |
Hesperaloe parviflora var. engelmannii | Engelmann's False Yucca Red Hesperaloe Red Yucca | |
Hesperaloe parviflora var. parviflora | Red Hesperaloe Red Yucca Redflower False Yucca | |
Hesperevax acaulis | Dwarf Evax Stemless Dwarf Cudweed Stemless Dwarf-Cudweed | |
Hesperevax acaulis var. acaulis | Stemless Dwarf Cudweed Stemless Dwarf-Cudweed Stemless Evax | |
Hesperevax acaulis var. ambusticola | Fire Evax Stemless Dwarf Cudweed Stemless Dwarf-Cudweed | |
Hesperevax acaulis var. robustior | Big Evax Robust Evax Stemless Dwarf Cudweed Stemless Dwarf-Cudweed | |
Hesperevax caulescens | Dwarf Dwarf Cudweed Dwarf Dwarf-Cudweed Hogwallow Starfish | |
Hesperevax sparsiflora | Erect Dwarf Cudweed Erect Dwarf-Cudweed Erect Evax Few Flowered Evax | |
Hesperevax sparsiflora var. brevifolia | Seaside Evax Short-leaved Evax Shortleaf Dwarf-Cudweed | |
Hesperevax sparsiflora var. sparsiflora | Erect Dwarf Cudweed Erect Dwarf-Cudweed Few Flowered Evax | |
Hesperocallis undulata | Desert Lily Desert-lily Ajo Lily | |
Hesperochiron californicus | California Hesperochiron | |
Hesperochiron pumilus | Dwarf Hesperochiron | |
Hesperocnide sandwicensis | Hawaii Stinging-nettle Hawaii Stingingnettle | |
Hesperocnide tenella | Western Nettle Western Stinging Nettle Western Stinging-nettle Western Stingingnettle | |
Hesperocyparis abramsiana | Santa Cruz Cypress | |
Hesperocyparis abramsiana var. abramsiana | Santa Cruz Cypress | |
Hesperocyparis abramsiana var. butanoensis | Santa Cruz Cypress | |
Hesperocyparis arizonica | Arizona Cypress Cedro Blanco | |
Hesperocyparis bakeri | Modoc Cypress Baker Cypress | |
Hesperocyparis forbesii | Tecate Cypress | |
Hesperocyparis glabra | Arizona Cypress Cuyamaca Cypress Piute Cypress Smooth Arizona Cypress | |
Hesperocyparis goveniana | Gowen Cypress | |
Hesperocyparis macnabiana | Macnab's Cypress | |
Hesperocyparis macrocarpa | Monterey Cypress | |
Hesperocyparis nevadensis | Paiute Cypress Piute Cypress | |
Hesperocyparis pigmaea | Pygmy Cypress | |
Hesperocyparis sargentii | Sargent Cypress Sargent's Cypress | |
Hesperocyparis stephensonii | Cuyamaca Cypress | |
Hesperodoria salicina | Willow Glowweed | |
Hesperodoria scopulorum | Evening-daisy Grand Canyon Glowweed | |
Hesperolinon adenophyllum | Glandular Dwarf Flax Glandular Dwarf-flax Glandular Western Flax | |
Hesperolinon bicarpellatum | Two Carpellate Western Flax Two-carpeled Dwarf-flax Two-carpellate Western Flax Twocarpel Dwarf Flax Twocarpel Dwarf-flax | |
Hesperolinon breweri | Brewer's Dwarf Flax Brewer's Dwarf-flax Brewer's Western Flax | |
Hesperolinon californicum | California Dwarf Flax California Dwarf-flax California Western Flax | |
Hesperolinon clevelandii | Allen Springs Dwarf Flax Allen Springs Dwarf-flax Allen Springs Western Flax | |
Hesperolinon congestum | Marin Dwarf Flax Marin Dwarf-flax Marin Western Flax | |
Hesperolinon didymocarpum | Lake County Dwarf Flax Lake County Dwarf-flax Lake County Western Flax | |
Hesperolinon disjunctum | Coast Range Dwarf Flax Coast Range Dwarf-flax Coast Range Western Flax | |
Hesperolinon drymarioides | Drymaria Dwarf-flax Drymaria-like Western Flax Drymary Dwarf Flax Drymary Dwarf-flax | |
Hesperolinon micranthum | Common Dwarf Flax Small Flower Western Flax Small Flowered Dwarf Flax Smallflower Dwarf-flax Threadstem Flax | |
Hesperolinon sharsmithiae | Sharsmith's Western Flax Sharsmith's Dwarf Flax | |
Hesperolinon spergulinum | Slender Dwarf Flax Slender Dwarf-flax Slender Western Flax | |
Hesperolinon tehamense | Paskenta Grade Dwarf Flax Paskenta Grade Dwarf-flax Tehama County Western Flax Tehama Dwarf-flax | |
Hesperomannia arborescens | Lanai Island-Aster | |
Hesperomannia arbuscula | Maui Island-Aster | |
Hesperomannia lydgatei | Kauai Island-Aster | |
Hesperostipa comata | Needle And Thread Needle-and-thread | |
Hesperostipa comata ssp. comata | Needle And Thread | |
Hesperostipa comata ssp. intermedia | Intermediate Needle And Thread | |
Hesperostipa curtiseta | Shortbristle Needle And Thread Western Porcupine Grass | |
Hesperostipa neomexicana | New Mexico Feathergrass | |
Hesperostipa spartea | Porcupinegrass Porcupine Grass | |
Hesperoyucca newberryi | Chaparral Yucca Grand Canyon Quixote Plant Newberry's Yucca Our Lord's Candle | |
Hesperoyucca whipplei | Our Lord's Candle Chaparral Yucca Foothill Yucca Quixote Yucca | |
Heteranthera dubia | Grassleaf Mudplantain Water Stargrass | |
Heteranthera limosa | Blue Mudplantain Blue Mud Plantain | |
Heteranthera mexicana | Mexican Mudplantain Mexican Mud-plantain | |
Heteranthera multiflora | Bouquet Mudplantain Bouquet Mud-plantain Multiflowered Mud-plantain | |
Heteranthera peduncularis | Egret Mudplantain Egret Mud-plantain | |
Heteranthera reniformis | Kidneyleaf Mudplantain Kidney-leaf Mud-plantain | |
Heteranthera rotundifolia | Roundleaf Mudplantain Round-leaf Mud-plantain | |
Heterocodon rariflorum | Rareflower Heterocodon Few Flowered Heterocodon Western Pearlflower | |
Heterodraba unilateralis | Ladies'-tongue Mustard Ladiestongue Mustard | |
Heteromeles arbutifolia | Toyon California Christmasberry Christmasberry California Holly Hollywood | |
Heteromeles arbutifolia var. arbutifolia | Christmas Berry Toyon | |
Heteromeles arbutifolia var. cerina | Christmas Berry Toyon | |
Heteromeles arbutifolia var. macrocarpa | Christmas Berry Toyon | |
Heteropogon contortus | Tanglehead | |
Heteropogon melanocarpus | Sweet Tanglehead | |
Heterosperma pinnatum | Wingpetal | |
Heterotheca barbata | Spokane False Goldenaster Spokane Goldenaster | |
Heterotheca camporum | Lemonyellow False Goldenaster Golden Aster | |
Heterotheca camporum var. camporum | Lemonyellow False Goldenaster Golden Aster | |
Heterotheca camporum var. glandulissimum | Lemonyellow False Goldenaster | |
Heterotheca canescens | Hoary False Goldenaster Gray Golden-aster | |
Heterotheca fulcrata | Rockyscree False Goldenaster | |
Heterotheca fulcrata var. amplifolia | Rockyscree False Goldenaster | |
Heterotheca fulcrata var. arizonica | Arizona False Goldenaster | |
Heterotheca fulcrata var. fulcrata | Rockyscree False Goldenaster | |
Heterotheca fulcrata var. senilis | Rockyscree False Goldenaster | |
scientific name | common name(s) | image gallery |