Plant Gallery

Oenothera albicaulis

Eveningprimrose, Prairie

Oenothera biennis

Eveningprimrose, Common

Oenothera curtiflora

Small-Flowered Gaura, Velvetweed = Gaura Parviflora, Gaura Mollis, Gaura, Small-Flowered

Oenothera elata

Eveningprimrose, Hooker's

Oenothera filiformis

Gaura, Biennial

Oenothera laciniata

Eveningprimrose, Cutleaf

Oenothera parviflora

Eveningprimrose, Small-Flowered

Oenothera speciosa

Eveningprimrose, Showy

Oenothera villosa

Eveningprimrose, Silky

Onopordum acanthium

Scotch Thistle, Cotton Thistle, Scottish Thistle, Thistle, Scotch

Opuntia humifusa

Pricklypear, Spreading

Opuntia polyacantha

Plains Prickly-Pear, Hairspine Cactus, Panhandle Prickly-Pear, Starvation Prickly-Pear Cactaceae = The Cactus Family, Pricklypear, Plains

Origanum vulgare

Oregano, Marjoram, Wild

Ornithogalum umbellatum

Common Star-Of-Bethlehem, Bird's Milk, Chincherinchee, Dove's-Dung, Nap-At-Noon, Pigeon-Dung, Sleepy-Dick, Snowdrop, Snowdrops, Star-Flower, Star-Of-Bethlehem, Starflower, Summer Snowflake, Ten O'clock Lady

Orobanche minor

Little Broomrape, Hellroot, Common Broomrape, Lesser Broomrape, Small Broomrape, Clover Broomrape, Broomrape, Small

Orobanche ramosa

Broomrape, Branched

Oxalis corniculata

Reeping Woodsorrel, Procumbent Yellow-Sorrel, Sleeping Beauty, Woodsorrel, Creeping

Oxalis pes-caprae

Bermuda Buttercup, African Wood-Sorrel, Bermuda Sorrel, Buttercup Oxalis, Cape Sorrel, English Weed, Goat's-Foot, Sourgrass, Soursob, Soursop, Oxalis, Buttercup

Oxalis stricta

Woodsorrel, Yellow

Oxalis violacea

Woodsorrel, Violet

Oxytropis lambertii

Crazyweed, Lambert

Oxytropis sericea

Crazyweed, Silky