Iridaceae
5 genera
18 species
9 subspecies and varieties
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Scientific name
Common name
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Crocosmia ×crocosmiiflora
Origin: Introduced from South Africa
Crocus ×stellaris
Origin: Introduced (garden origin)
Crocus tommasinianus
Origin: Introduced from southeast Europe
Crocus vernus
Origin: Introduced
Iris foetidissima
Origin: Introduced from Europe
Iris germanica
Origin: Introduced from southern Europe
Iris missouriensis
Origin: Native
Iris pseudacorus
Origin: Introduced from Eurasia
Iris sibirica
Origin: Introduced
Iris tenax
Distribution: ccurring west of the Cascades crest in Washington;
Origin: Native
Sisyrinchium bellum
Origin: Native
Sisyrinchium littorale
Origin: Native
Sisyrinchium sarmentosum
Origin: Native