Mojave Fissurewort
Halimolobos jaegeri
Calscape.org
Calscape.org
Niles' Harmonia
Harmonia doris-nilesiae
Calscape.org
Guggolz's Harmonia
Harmonia guggolziorum
Calscape.org
Hall's Harmonia
Harmonia hallii
Calscape.org
Nodding Harmonia
Harmonia nutans
Calscape.org
Stebbins' Harmonia
Harmonia stebbinsii
Calscape.org
Palmer's Grapplinghook
Harpagonella palmeri
Calscape.org
Sierra Starwort
Hartmaniella sierrae
Calscape.org
White Bog Hastingsia
Hastingsia alba
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Siskiyou Hastingsia
Hastingsia serpentinicola
Calscape.org
Brickell Goldenbush
Hazardia brickellioides
Calscape.org
Guadalupe Hazardia
Hazardia cana
Calscape.org
Northern Island Haplopappus
Hazardia detonsa
Calscape.org
Orcutt's Bristleweed
Hazardia orcuttii
Calscape.org
Sawtooth Goldenbush
Hazardia squarrosa
Calscape.org
Saw Toothed Goldenbush
Hazardia squarrosa var. grindelioides
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Hazardia squarrosa var. obtusa
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Hazardia squarrosa var. squarrosa
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Serpentine Bristleweed
Hazardia stenolepis
Calscape.org
Whitney's Bristleweed
Hazardia whitneyi
Calscape.org
Hazardia whitneyi var. discoidea
Calscape.org
Hazardia whitneyi var. whitneyi
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Prickleleaf
Hecastocleis shockleyi
Calscape.org
Drummond's False Pennyroyal
Hedeoma drummondii
Calscape.org
California False Pennyroyal
Hedeoma nana
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California Mock Pennyroyal
Hedeoma nana ssp. californica
Calscape.org
Common Sneezeweed
Helenium autumnale
Calscape.org
Bigelow's Sneezeweed
Helenium bigelovii
Calscape.org
Coastal Sneezeweed
Helenium bolanderi
Calscape.org
Sneezeweed
Helenium puberulum
Calscape.org
California Helianthella
Helianthella californica
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California Helianthella
Helianthella californica var. californica
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Nevada Helianthella
Helianthella californica var. nevadensis
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Shasta Helianthella
Helianthella californica var. shastensis
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Diablo Helianthella
Helianthella castanea
Calscape.org
Sunflower
Helianthus annuus
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Claremont Sunshine Sunflower
Helianthus annuus 'Claremont Sunshine'
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Serpentine Sunflower
Helianthus bolanderi
Calscape.org
California Sunflower
Helianthus californicus
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Cusick's Sunflower
Helianthus cusickii
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Slender Sunflower
Helianthus gracilentus
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Newhall Sunflower
Helianthus inexpectatus
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Showy Sunflower
Helianthus niveus
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Algodones Dunes Sunflower
Helianthus niveus ssp. tephrodes
Calscape.org
Nuttall's Sunflower
Helianthus nuttallii
Calscape.org
Nuttall's Sunflower
Helianthus nuttallii ssp. nuttallii
Calscape.org
Los Angeles Sunflower
Helianthus nuttallii ssp. parishii
Calscape.org
Prairie Sunflower
Helianthus petiolaris
Calscape.org
Gray Desert Sunflower
Helianthus petiolaris ssp. canescens
Calscape.org
Showy Goldeneye
Heliomeris multiflora
Calscape.org
Nevada Goldeneye
Heliomeris multiflora var. nevadensis
Calscape.org
Phlox Heliotrope
Heliotropium convolvulaceum
Calscape.org
Morning-glory Heliotrope
Heliotropium convolvulaceum var. californicum
Calscape.org
Seaside Heliotrope
Heliotropium curassavicum
Calscape.org
Heliotrope
Heliotropium curassavicum var. occulatum
Calscape.org
Seaside Heliotrope
Heliotropium curassavicum var. oculatum
Calscape.org
Hemieva ranunculifolia
Calscape.org
Gnome Plant
Hemitomes congestum
Calscape.org
Opposite-leaved Tarweed
Hemizonella minima
Calscape.org
Hayfield Tarweed
Hemizonia congesta