Page 142: 1,549 results for Oenothera
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Braya humilis (alpine northern-rockcress)
...(Oenothera): NA. Nectar spur: the flower has no nectar spurs. Horns in hoods (Asclepias): ...
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Menyanthes trifoliata (bog bean, buck-bean)
...(Oenothera): NA. Corolla palate: no. Wings on fruit: the fruit does not ...
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Lupinus perennis (sundial lupine)
...(Oenothera): NA. Nectar spur: the flower has no nectar spurs. Anther opening: ...
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Geranium pyrenaicum (hedgerow crane's-bill)
...(Oenothera): NA. Filament surface: the filament has rough hairs or scales on it. Flower descriptio...
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Desmodium cuspidatum (large-bracted tick-trefoil)
...(Oenothera): NA. Plants darken when dry: no. Flower description: the flo...
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Desmodium sessilifolium (sessile-leaved tick-trefoil)
...(Oenothera): NA. Leaf blade shape: the leaf blade is lanceolate (lance-shaped; widest below the middle and tapering at both...
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Lespedeza virginica (slender bush-clover)
...(Oenothera): NA. Leaf blade shape: the leaf blade is oblong (rectangular but with rounded ends). S...
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Dalea leporina (fox-tail prairie-clover)
...(Oenothera): NA. Petal appearance: the petals are thin and delicate, and pigmented (colored other than green or brown). ...
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Mirabilis nyctaginea (heart-leaved umbrella-wort)
...(Oenothera): NA. Leaf tip: the tip of the leaf blade is acute (sharply pointed). Rows of seeds in ...
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Persicaria arifolia (halberd-leaved smartweed)
...(Oenothera): NA. Floral bracts: the flower does not have bracts. Calyx growth after flowering: ...