Illinois Natural History Survey - University of Illinois



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Scientific Name Synonyms Common Names Family Lifeform Origin Photo
Obolaria virginicaPennywort Gentianaceae Forb Native
Ocimum basilicumBasil Lamiaceae Forb Asia
Oenothera biennisEvening primrose Onagraceae Forb Native
Oenothera clelandii Onagraceae
Oenothera fruticosaOenothera fruticosa var. linearisShrubby sundrops Onagraceae Forb Native
Oenothera fruticosa ssp. glaucaOenothera fruticosa glauca
Oenothera fruticosa var. glauca
Oenothera tetragona
Four-angled sundrops Onagraceae Forb Native
Oenothera grandis Onagraceae
Oenothera laciniataRagged evening primrose Onagraceae Forb Native
Oenothera linifoliaThread-leaved sundrops Onagraceae Forb Native
Oenothera macrocarpaOenothera missouriensisMissouri primrose Onagraceae Forb Native
Oenothera nuttalliiWhite evening primrose Onagraceae Forb North America
Oenothera oakesiana Onagraceae
Oenothera parvifloraOenothera cruciataEvening primrose Onagraceae Forb North America
Oenothera perennisSmall sundrops Onagraceae Forb Native
Oenothera pilosellaPrairie sundrops Onagraceae Forb Native
Oenothera rhombipetalaSand primrose Onagraceae Forb Native
Oenothera speciosaShowy evening primrose Onagraceae Forb North America
Oenothera trilobaEvening primrose Onagraceae Forb North America
Oenothera villosaOenothera biennis canescens
Oenothera biennis var. canescens
Oenothera strigosa
Evening primrose Onagraceae Forb Native
Onobrychis viciifoliaOnobrychis viciaefolia
Onobrychis viciifolia scop.
Sainfoin Fabaceae Forb Europe

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