Delphinium

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Delphinium (larkspur; family Ranunculaceae) A genus of annual or perennial herbs that have palmately lobed leaves and irregular flowers in racemes, comprising 5 petaloid sepals (the posterior one with a spur, giving the genus its common name), 4 petal nectaries, many stamens, and 1–3 follicles which form the fruit. Many Delphinium species are cultivated for their attractive flowers. There are about 250 species, found in the northern hemisphere.

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del·phin·i·um / delˈfinēəm/ • n. a plant (genus Delphinium) of the buttercup family that bears tall spikes of typically blue flowers.

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delphinium XVII. — modL. delphinium — Gr. delphī́nion larkspur, f. delphís, delphīn- DOLPHIN; so called from the dolphin-like form of the nectary.

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delphinium (larkspur) Any of c.250 species of herbaceous plants native to temperate areas, with spirally arranged leaves and loose clusters of flowers. Petals form a tubular spur, which contains nectar. Garden delphiniums are varieties of Delphinium elatum. Family Ranunculaceae.