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Scientific Name Common Name(s) Plant Category Image
Polygonum pennsylvanicum Pennsylvania smartweed, Pink knotweed Wildflowers
Pontederia cordata Pickerel weed, Pickerelweed Herbs, Native Plants, Perennials, Water Garden, Wildflowers
Pontederia cordata alba White pickerel weed Wildflowers
Porteranthus trifoliatus Bowman's root, Mountain indian physic Wildflowers
Potentilla canadensis Dwarf cinquefoil Wildflowers
Potentilla recta Rough-fruited cinquefoil Wildflowers
Potentilla tridentata Three-toothed cinquefoil Wildflowers
Prenanthes altissima Rattlesnake root, Tall white lettuce Wildflowers
Prunella vulgaris Heal all Wildflowers
Pycnanthemum incanum Hoary mountain mint, Hoary mountain-mint, Mountain mint Herbs, Native Plants, Perennials, Wildflowers
Pycnanthemum muticum Short-toothed mountain mint Wildflowers
Pycnanthemum spp. Perennials, Wildflowers
Pycnanthemum tenuifolium Narrow-leafed mountain mint Wildflowers
Pyrola elliptica Shinleaf Wildflowers
Pyrola rotundifolia Round-leafed pyrola Wildflowers
Ranunculus carolinianus Carolina buttercup Poisonous Plants, Wildflowers
Ratibida pinnata Gray-headed coneflower Wildflowers
Rhexia virginica Meadow beauty Perennials, Wildflowers
Rudbeckia fulgida Black-eyed Susan, Orange coneflower Herbs, Native Plants, Perennials, Wildflowers
Rudbeckia hirta Black-eyed Susan, Gloriosa daisy Annuals, Herbs, Perennials, Wildflowers
Rudbeckia laciniata Cutleaf coneflower, Green headed coneflower, Green-Head coneflower Herbs, Native Plants, Perennials, Wildflowers
Rudbeckia maxima Cabbage-leaf coneflower, Large coneflower, Swamp coneflower Wildflowers
Rudbeckia subtomentosa Native Plants, Perennials, Wildflowers
Rudbeckia triloba Brown-Eyed Susan Native Plants, Perennials, Wildflowers
Ruellia caroliniensis Wild petunia Wildflowers