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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