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Sign image. Vo, S. 108. US Botanic Garden Conservatory: Medicinal Plants exhibit, GGI Gardens Project 2016.
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Habit image. Vo, S. 108. US Botanic Garden Conservatory: Medicinal Plants exhibit, GGI Gardens Project 2016.
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Close-up image. Vo, S. 108. US Botanic Garden Conservatory: Medicinal Plants exhibit, GGI Gardens Project 2016.
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Photograph of Ephedra viridis.
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Ephedra tweedieana (Ephedraceae) based on Pace 539 from Argentina. Photo by P. Acevedo.