Alisma Leaved Buttercup
Ranunculus alismifolius
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Plantainleaf Buttercup
Ranunculus alismifolius var. alismellus
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Plantainleaf Buttercup
Ranunculus alismifolius var. alismifolius
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Ranunculus alismifolius var. hartwegii
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Ranunculus alismifolius var. lemmonii
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Anderson's Buttercup
Ranunculus andersonii
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Common Water-crowfoot
Ranunculus aquatilis
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Ranunculus aquatilis var. aquatilis
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Hairleaf Water Buttercup
Ranunculus aquatilis var. diffusus
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Carter's Buttercup
Ranunculus bonariensis
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Carter's Buttercup
Ranunculus bonariensis var. trisepalus
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California Buttercup
Ranunculus californicus
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Ranunculus californicus var. californicus
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Ranunculus californicus var. cuneatus
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Sacramento Valley Buttercup
Ranunculus canus
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Ranunculus canus var. canus
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Ranunculus canus var. ludovicianus
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Desert Buttercup
Ranunculus cymbalaria
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Eschscholtz's Buttercup
Ranunculus eschscholtzii
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Eschscholtz's Buttercup
Ranunculus eschscholtzii var. eschscholtzii
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Eschscholtz's Buttercup
Ranunculus eschscholtzii var. oxynotus
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Ranunculus eschscholtzii var. suksdorfii
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Yellow Water Buttercup
Ranunculus flabellaris
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Buttercup
Ranunculus flammula
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Greater Creeping Spearwort
Ranunculus flammula var. flammula
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Ranunculus flammula var. ovalis
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Smooth Buttercup
Ranunculus glaberrimus
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Elliptical Buttercup
Ranunculus glaberrimus var. ellipticus
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Sagebrush Buttercup
Ranunculus glaberrimus var. glaberrimus
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Gorman's Buttercup
Ranunculus gormanii
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Delicate Buttercup
Ranunculus hebecarpus
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Frog's-bit Buttercup
Ranunculus hydrocharoides
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Waterfall False Buttercup
Ranunculus hystriculus
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Lobb's Buttercup
Ranunculus lobbii
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Macoun's Buttercup
Ranunculus macounii
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Western Buttercup
Ranunculus occidentalis
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Ranunculus occidentalis var. dissectus
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Ranunculus occidentalis var. howellii
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Western Buttercup
Ranunculus occidentalis var. occidentalis
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Ranunculus occidentalis var. ultramontanus
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Straightbeak Buttercup
Ranunculus orthorhynchus
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Bloomer's Buttercup
Ranunculus orthorhynchus var. bloomeri
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Straightbeak Buttercup
Ranunculus orthorhynchus var. orthorhynchus
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Ranunculus orthorhynchus var. platyphyllus
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Popular Buttercup
Ranunculus populago
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Low Spearwort
Ranunculus pusillus
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Cursed Buttercup
Ranunculus sceleratus
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Cursed Buttercup
Ranunculus sceleratus var. multifidus
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Woodland Buttercup
Ranunculus uncinatus