flower-of-an-hour
Lithophragma
genus Parthenium
genus Verbesina
Verbesina
tropical pitcher plant
genus Tithonia
genus Nierembergia
genus Engelmannia
wild cotton
Quamassia
Brickellia
globe mallow
Camassia
false mallow
genus Brickelia
genus Trillium
genus Camassia
genus Quamassia
Allegheny mountain spurge
Petunia
false gromwell
Piqueria
Peltandra virginica
Fritillaria agrestis
genus Loasa
genus Achimenes
Allegheny spurge
Bloomeria
genus Polianthes
genus Bloomeria
Enceliopsis
Pachysandra procumbens
tuckahoe
three-seeded mercury
genus Petunia
genus Piqueria
genus Enceliopsis
Acalypha virginica
green arrow arum
yerba mansa
stink bell
Anemopsis californica
Polianthes
genus Schizopetalon
genus Chaenactis
Russian tumbleweed
Russian cactus
Russian thistle
genus Sisymbrium