Lewis J. Clark

1907 – 1974

• Field guide to wild flowers of field and slope in the Pacific Northwest
• Field guide to wild flowers of forest and woodland in the Pacific Northwest
• Field guide to wild flowers of the mountains in the Pacific Northwest
• Lewis Clark's Field guide to wild flowers of marsh and waterway in the Pacific Northwest
• Lewis Clark's field guide to wild flowers of the arid flatlands in the Pacific Northwest
• Lewis Clark's Field guide to wild flowers of the sea coast in the Pacific Northwest
• Wild flowers of British Columbia
• Wild Flowers of Field & Slope in the Pacific Northwest (Lewis Clark's Field Guide To...)
• Wild flowers of the Pacific Northwest
• Wild flowers of the Pacific Northwest, from Alaska to Northern California
• Wild Flowers of the Sea Coast
• Wildflowers of Forest & Woodland in the Pacific Northwest (Lewis Clark's Field Guide To...)