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Scientific Name Common Name(s) Plant Category Image
Solanum dulcamara Bittersweet, Deadly nightshade, European bittersweet, climbing nightshade Poisonous Plants, Vines
Solanum jasminoides Potato vine Vines
Solanum nigrum Black nightshade Poisonous Plants
Solanum pseudocapsicum Jerusalem cherry Perennials, Poisonous Plants
Solanum tuberosum Potato, irish potato, white potato Poisonous Plants
Solenostemon pumilus AKA Coleus pumilis, Trailing coleus Annuals
Solenostemon scutellarioides Coleus, painted nettle Annuals, Poisonous Plants
Solidago altissima Canada goldenrod, Canadian goldenrod, Late goldenrod, Tall goldenrod Native Plants, Perennials, Wildflowers
Solidago bicolor Silver-rod, White goldenrod Wildflowers
Solidago caesia Axillary goldenrod, Blue stemmed goldenrod, Bluestem goldenrod, Woodland goldenrod Herbs, Native Plants, Perennials, Wildflowers
Solidago juncea Early goldenrod Native Plants, Perennials, Wildflowers
Solidago nemoralis Common goldenrod, Gray goldenrod Perennials, Wildflowers
Solidago odora Anise-scented goldenrod , Fragrant goldenrod, Sweet goldenrod Edible Plants, Herbs, Native Plants, Perennials, Wildflowers
Solidago rugosa Rough-leaf goldenrod, Rough-stemmed goldenrod, Wrinkle-leaf goldenrod, Wrinkleleaf goldenrod Herbs, Native Plants, Perennials, Wildflowers
Solidago sempervirens Seaside goldenrod Wildflowers
Solidago speciosa Showy goldenrod Herbs, Native Plants, Perennials, Wildflowers
Solidago spp., S. hybrids Goldenrod Perennials, Wildflowers
Solidago uliginosa Bog goldenrod Herbs, Native Plants, Perennials, Wildflowers
Sonchus asper Spiny-leaved sow-thistle Wildflowers
Sonchus spp. Sow thistle, Sowthistle Annuals, Herbs
Sophora davidii = S. viciifolia David's mountain laurel Shrubs
Sophora secundiflora Mescal bean Poisonous Plants
Sorbaria sorbifolia False spirea Shrubs
Sorbus alnifolia Korean Mountain ash Trees
Sorbus americana American mountainash Native Plants, Shrubs, Trees
Sorbus aucuparia European Mountain ash Trees
Sorbus commixta Japanese mountainash Trees
Sorghastrum elliottii Long-bristled Indian-grass, Indiangrass, Nodding Indiangrass, Slender Indiangrass Native Plants, Ornamental Grass, Perennials
Sorghastrum nutans Indian grass Native Plants, Ornamental Grass, Perennials
Sorghum halepense Johnsongrass Poisonous Plants
Sparaxis Harlequin flower, Wand flower Summer Bulbs
Sparaxis hybrids Harlequin Flower Spring Bulbs
Sparmannia africana African hemp Poisonous Plants
Spartina pectinata Cord grass Prairie Ornamental Grass
Spartium junceum Spanish broom Shrubs
Spathiphyllum spp. Peace lily, spathe flower Poisonous Plants
Spigelia marilandica Indian pink, pinkroot Herbs, Native Plants, Perennials, Poisonous Plants, Wildflowers
Spiraea cantoniensis Bridal-wreath spirea, Spirea, Reeves spirea (double) Shrubs
Spiraea fritschiana Fritschiana spirea, Korean spirea Shrubs
Spiraea japonica Japanese spirea Shrubs
Spiraea nipponica 'Snowmound' Snowmound spirea Shrubs
Spiraea prunifolia Bridalwreath spirea Shrubs
Spiraea thunbergii Breath of Spring spirea, Thunberg spirea Shrubs
Spiraea tomentosa Hardbark spirea, Hardhack, Spirarea, Steeplebush Native Plants, Shrubs
Spiraea trilobata Threelobe spirea Shrubs
Spiraea x bumalda Bumalda spirea Shrubs
Spiraea x bumalda 'Anthony Waterer' Anthony Waterer spirea Shrubs
Spiraea x cinerea 'Grefsheim' Grefsheim spirea Shrubs
Spiraea x vanhouttei Vanhoutte spirea Shrubs
Spiranthes cernua Nodding ladies tresses Wildflowers