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Weed Identification Tool
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Oenothera laciniata (eveningprimrose, cutleaf)

Family: Onagraceae

Oenothera parviflora (eveningprimrose, small-flowered)

Family: Onagraceae

Oenothera speciosa (eveningprimrose, showy)

Family: Onagraceae

Oenothera villosa (eveningprimrose, silky)

Family: Onagraceae

Onopordum acanthium (thistle, Scotch)

Family: Asteraceae

Opuntia humifusa (pricklypear, spreading)

Family: Cactaceae

Opuntia polyacantha (pricklypear, plains)

Family: Cactaceae

Origanum vulgare (marjoram, wild)

Family: Lamiaceae

Ornithogalum umbellatum (star-of-Bethlehem)

Family: Liliaceae