Page 93: 1,549 results for Oenothera
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Polygonum ramosissimum (yellow-flowered knotweed)
...(Oenothera): NA. Nectar spur: the flower has no nectar spurs. Horns in hoods (Asclepias): ...
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Dracocephalum parviflorum (American dragonhead)
...(Oenothera): NA. Petal tip shape: the petal tip is retuse (with a blunt or rounded apex and a notch at the center). ...
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Ludwigia polycarpa (many-fruited water-primrose)
...(Oenothera): NA. Schizocarpic fruit segments: 0.0 NA–0.0 NA. Bulbils: the plan...
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Anthyllis vulneraria (common kidney-vetch)
...(Oenothera): NA. Nectar spur: the flower has no nectar spurs. Horns in hoods (Asclepias): ...
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Campanula rotundifolia (Scotch bellflower)
...(Oenothera): NA. Underground organs: there is a thickened taproot on the plant. Pinnately compound...
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Polemonium vanbruntiae (bog Jacob's-ladder)
...(Oenothera): NA. Nectar spur: the flower has no nectar spurs. Horns in hoods (Asclepias): ...
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Penstemon digitalis (foxglove beardtongue)
...(Oenothera): NA. Leaves on stem: there is at least one full leaf above the base of the flowering stem. ...
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Salvia lyrata (lyre-leaved sage)
...(Oenothera): NA. Leaves on stem: there is at least one full leaf above the base of the flowering stem. ...
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Cynoglossum officinale (common hound's-tongue)
...(Oenothera): NA. Nectar spur: the flower has no nectar spurs. Horns in hoods (Asclepias): ...
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Melampyrum lineare (cow-wheat)
...(Oenothera): NA. Seed length: 2.0 mm–3.0 mm. Leaves on stem: there is at least...