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oscar w gupton
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Trees and shrubs of Virginia
Oscar W. Gupton · University Press of Virginia
205 sayfa · 1981
Identification / Pictorial works / Shrubs / Trees / Trees, north america
Wild orchids of the Middle Atlantic States
Oscar W. Gupton · University of Tennessee Press
112 sayfa · 1986
Botany / Identification / Orchids / Pictorial works / Middle atlantic states, guidebooks
Wildflowers of tidewater Virginia
Oscar W. Gupton · University Press of Virginia
208 sayfa · 1982
Identification / Tidewater / Wild flowers
Wildflowers of the Shenandoah Valley and Blue Ridge Mountains
Oscar W. Gupton, Fred C. Swope · University of Virginia Press
224 sayfa · 2002
Wild flowers, united states