Scientific Name |
Common Name(s) |
Plant Category |
Image |
Nymphaea 'Sioux' |
Sioux |
Water Garden |
 |
Nymphaea 'Sirius' |
Sirius |
Water Garden |
 |
Nymphaea 'Splendida' |
Splendida |
Water Garden |
 |
Nymphaea 'St. Louis Gold' |
St. Louis Gold |
Water Garden |
 |
Nymphaea 'St. Louis' |
St. Louis |
Water Garden |
 |
Nymphaea 'Starbright' |
Starbright |
Water Garden |
 |
Nymphaea 'Sultan' |
Sultan |
Water Garden |
 |
Nymphaea 'Texas Dawn' |
Texas Dawn |
Water Garden |
 |
Nymphaea 'Tina' |
Tina |
Water Garden |
 |
Nymphaea 'Venus' |
Venus |
Water Garden |
 |
Nymphaea 'Virginalis' |
Virginalis |
Water Garden |
 |
Nymphaea 'Virginia' |
Virginia |
Water Garden |
 |
Nymphaea 'William Falconer' |
William Falconer |
Water Garden |
 |
Nymphaea 'Yellow Dazzler' |
Yellow Dazzler |
Water Garden |
 |
Nymphaea colorata |
Blue Pigmy, Colorata |
Water Garden |
 |
Nymphaea x marliacea 'Carnea' |
Carnea |
Water Garden |
 |
Nymphaea x marliacea 'Chromatella' |
Chromatella |
Water Garden |
 |
Nymphoides pelatum |
Floating heart |
Water Garden |
 |
Nyssa aquatica |
Water tupelo |
Trees |
 |
Nyssa ogeche |
Ogeechee lime, Ogeechee tupelo |
Trees |
 |
Nyssa sinensis |
Chinese tupelo |
Trees |
 |
Nyssa sylvatica |
Black gum, Black tupelo, Sour gum |
Native Plants, Trees |
 |
Ocimum basilicum |
Sweet basil |
Edible Plants, Herbs |
 |
Odontonema strictum |
Firespike |
Annuals |
 |
Oenothera biennis |
Evening primrose |
Perennials, Wildflowers |
 |
Oenothera fruticosa |
Sundrops |
Native Plants, Perennials |
 |
Oenothera speciosa |
Showy evening primrose |
Perennials |
 |
Oenothera tetragona |
Sundrops |
Perennials, Wildflowers |
 |
Omphalodes linifolia |
Navelwort |
Annuals |
 |
Omphalotus olearius (Clitocybe illudens) |
Jack-O-Lantern |
Poisonous Plants |
 |
Onoclea sensibilis |
Bead fern, Sensitive fern |
Ferns, Native Plants |
 |
Ophiopogon jaburan vittata |
Snakebeard, White lilyturf |
Groundcover |
 |
Ophiopogon japonicus |
Mondo grass |
Groundcover |
 |
Ophiopogon japonicus 'Nana' |
Dwarf mondo grass |
Groundcover |
 |
Opuntia spp. |
Rabbit ears cactus, prickly pear cactus |
Poisonous Plants |
 |
Origanum majorana |
Sweet marjoram |
Edible Plants, Herbs |
 |
Origanum vulgare |
Oregano |
Edible Plants, Herbs |
 |
Ornithogalum |
Star of Bethlehem |
Summer Bulbs |
 |
Ornithogalum umbellatum |
Star of Bethlehem |
Perennial Bulbs, Spring Bulbs |
 |
Ornithogalum umbellatum, O. thrysoides |
Ornithogalum, Star-of-Bethlehem |
Poisonous Plants |
 |
Orontium aquaticum |
Golden club |
Poisonous Plants, Water Garden, Wildflowers |
 |
Osmanthus americanus |
Devilwood, Wild olive |
Native Plants, Shrubs, Trees |
 |
Osmanthus delavayi |
Delavay teaolive |
Shrubs |
 |
Osmanthus fragrans |
Fragrant tea olive, Sweet osmanthus |
Shrubs |
 |
Osmanthus heterophyllus |
False holly, Holly osmanthus, Holly tea olive |
Shrubs |
 |
Osmanthus x burkwoodii |
Burkwood osmanthus |
Shrubs |
 |
Osmanthus x fortunei |
Fortune's osmanthus, Fortune's tea olive |
Shrubs |
 |
Osmunda cinnamomea |
Cinnamon fern |
Ferns |
 |
Osmunda claytoniana |
Clayton's fern, Interrupted fern |
Ferns |
 |
Osmunda regalis |
Flowering fern, Royal fern |
Ferns |
 |