Oxalis acetosella
Illustration by Mary Vaux Walcott. North American Wild Flowers. Washington, 1925.
Cestrum alternifolium
Illustration by Nikolaus Joseph Jacquin’s. Plantarum Rariorum Horti Schoenbrunnensis. Viena, 1797.
Iris missouriensis
Illustration by Mary Vaux Walcott. North American Wild Flowers. Washington, 1925.
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