Greenfinch Roundleaf Alumroot
Heuchera cylindrica 'Greenfinch'
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Red Bud Roundleaf Alumroot
Heuchera cylindrica 'Red Bud'
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Southern Hawkweed
Hieracium argutum
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James' Galleta
Hilaria jamesii
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Common Mares Tail
Hippuris vulgaris
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Leather Root
Hoita macrostachya
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Round Leaved Psoralea
Hoita orbicularis
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Heermann's Tarweed
Holocarpha heermannii
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San Joaquin Tarweed
Holocarpha obconica
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Pitgland Tarweed
Holocarpha virgata
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Whitecrown
Holozonia filipes
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Meadow Barley
Hordeum brachyantherum
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Meadow Barley
Hordeum brachyantherum ssp. brachyantherum
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California Meadow Barley
Hordeum brachyantherum ssp. californicum
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Wedge Leaf Horkelia
Horkelia cuneata
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Ramona Horkelia
Horkelia truncata
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Big Deervetch
Hosackia crassifolia var. crassifolia
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Meadow Birdsfoot Trefoil
Hosackia pinnata
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Floating Marsh Pennywort
Hydrocotyle ranunculoides
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California Waterleaf
Hydrophyllum occidentale
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Columbia Cutleaf
Hymenopappus filifolius
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Cooper's Rubberweed
Hymenoxys cooperi
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Tinker's Penny
Hypericum anagalloides
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Baker's Wild Hollyhock
Iliamna bakeri
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Lava-aster
Ionactis alpina
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Scarlet Gilia
Ipomopsis aggregata
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Bridge's Gilia
Ipomopsis aggregata ssp. bridgesii
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Ballhead Ipomopsis
Ipomopsis congesta
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Manybranched Ipomopsis
Ipomopsis polycladon
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Slenderleaf Skyrocket
Ipomopsis tenuifolia
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Tuolumne Iris
Iris hartwegii ssp. columbiana
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Long Tubed Iris
Iris macrosiphon
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Mt. Madonna Ground Iris
Iris macrosiphon 'Mt. Madonna'
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Longtube Iris
Iris tenuissima
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Slender Tubed Iris
Iris tenuissima ssp. purdyiformis
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Longtube Iris
Iris tenuissima ssp. tenuissima
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Satan's Goldenbush
Isocoma menziesii var. diabolica
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Sierra Valley Mousetail
Ivesia aperta
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Arizona Whitefeather
Ivesia arizonica
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Rock Mousetail
Ivesia saxosa
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Jamesia
Jamesia americana
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Ramm's Madia
Jensia rammii
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Coast Jepsonia
Jepsonia parryi
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Southern California Black Walnut
Juglans californica
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Baltic Rush
Juncus balticus
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Hairstemmed Rush
Juncus capillaris
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Soft Rush
Juncus effusus
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Corkscrew Rush
Juncus effusus 'Spiralis'
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Kellogg's Dwarf Rush
Juncus kelloggii
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Mexican Rush
Juncus mexicanus
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Wrinkled Rush
Juncus rugulosus
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Poverty Rush
Juncus tenuis
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Blue Dart Slender Rush
Juncus tenuis 'Blue Dart'
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Torrey's Rush
Juncus torreyi
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Inch-high Rush
Juncus uncialis
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Irisleaf Rush
Juncus xiphioides
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California Juniper
Juniperus californica
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Western Juniper
Juniperus occidentalis
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Utah Juniper
Juniperus osteosperma
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Yellow Bush Penstemon
Keckiella antirrhinoides