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Nuttall's Scrub Oak

Quercus dumosa

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Leather Oak

Quercus durata

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Leather Oak

Quercus durata var. durata

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Engelmann Oak

Quercus engelmannii

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Garry's Oak

Quercus garryana

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Garry's Oak

Quercus garryana var. breweri

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Oregon White Oak

Quercus garryana var. garryana

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Black Oak

Quercus kelloggii

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Valley Oak

Quercus lobata

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Desert Oak

Quercus palmeri

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Santa Cruz Island Oak

Quercus parvula

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Santa Cruz Island Oak

Quercus parvula var. parvula

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Shreve Oak

Quercus parvula var. shrevei

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Island Oak

Quercus tomentella

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Grey Oak

Quercus turbinella

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Interior Live Oak

Quercus wislizeni

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Interior Live Oak

Quercus wislizeni var. frutescens

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Interior Live Oak

Quercus wislizeni var. wislizeni

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California Plumseed

Rafinesquia californica

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New Mexico Plumseed

Rafinesquia neomexicana

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Alisma Leaved Buttercup

Ranunculus alismifolius

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California Buttercup

Ranunculus californicus

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Desert Buttercup

Ranunculus cymbalaria

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Smooth Buttercup

Ranunculus glaberrimus

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Lobb's Buttercup

Ranunculus lobbii

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Western Buttercup

Ranunculus occidentalis

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Little Sur Coffeeberry

Rhamnus californica 'Little Sur'

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Spiny Redberry

Rhamnus crocea

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Hollyleaf Redberry

Rhamnus ilicifolia

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Hairyleaf Redberry

Rhamnus pilosa

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California Milkwort

Rhinotropis californica

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Sierra Milkwort

Rhinotropis cornuta

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Sierra Milkwort

Rhinotropis cornuta var. cornuta

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Ledge Stonecrop

Rhodiola integrifolia

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Western Azalea

Rhododendron occidentale var. paludosum

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Sonoma Azalea

Rhododendron occidentale var. sonomense

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Fragrant Sumac

Rhus aromatica

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skunk bush

Rhus aromatica var. trilobata

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Lemonade Berry

Rhus integrifolia

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Sugar Bush

Rhus ovata

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Bitter Gooseberry

Ribes amarum

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Golden Currant

Ribes aureum

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Golden Currant

Ribes aureum var. aureum

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Golden Currant

Ribes aureum var. gracillimum

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Hillside Gooseberry

Ribes californicum var. hesperium

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Wax Currant

Ribes cereum

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Wax Currant

Ribes cereum var. cereum

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Spreading Gooseberry

Ribes divaricatum

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Straggly Gooseberry

Ribes divaricatum var. pubiflorum

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White Flowering Currant

Ribes indecorum

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Whitestem Gooseberry

Ribes inerme

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Whitestem Gooseberry

Ribes inerme var. inerme

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Whitestem Gooseberry

Ribes inerme var. klamathense

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Chaparral Currant

Ribes malvaceum

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Christy Ridge Chaparral Currant

Ribes malvaceum 'Christy Ridge'

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Dancing Tassles Currant

Ribes malvaceum 'Dancing Tassels'

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White chaparral currant

Ribes malvaceum 'Rana White'

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Rinconada Rose Chaparral Currant

Ribes malvaceum 'Rinconada Rose'

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Chaparral Currant

Ribes malvaceum var. viridifolium

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Ortega Beauty Chaparral Currant

Ribes malvaceum var. viridifolium 'Ortega Beauty'