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Species of flowering plant From Wikipedia, the free encyclopedia
Oenothera macrocarpa (syn. Oenothera missouriensis), the bigfruit evening primrose,[1] Ozark sundrops,[2] Missouri evening primrose,[3] or Missouri primrose,[4] is a species of flowering plant in the evening primrose family Onagraceae, native to northeast Mexico and the south-central United States, where it is found in calcareous prairies and limestone outcrops.[5]
Oenothera macrocarpa | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Myrtales |
Family: | Onagraceae |
Genus: | Oenothera |
Species: | O. macrocarpa |
Binomial name | |
Oenothera macrocarpa | |
This herbaceous perennial produces a red stem up to 46 cm (18 in) in height.[6] The plant can sprawl along the ground up to 0.6 m (2 ft).[4] Leaves are long and narrow, about 15 cm (6 in) long by 3 cm (1 in) across, and are densely crowded in an alternate arrangement along the stem.[6] They have either smooth margins or broadly spaced teeth and are hairy.[7]
The large flowers, up to 13 cm (5 in) across, are cup shaped with four petals, canary yellow, and have a mild fragrance. They are produced in great numbers from early to mid summer. The flowers last for one day, opening in the evening and closing the following morning.[6] The seed pods are 4-winged and 52–75 mm (2–3 in) long.[7]
There are five commonly accepted varieties.[8] These are:
The genus name Oenothera is from the Greek for "wine-scented". The specific epithet macrocarpa is also from the Greek, meaning "large fruited".[12]
Oenothera macrocarpa is native to Arkansas, Illinois, Kansas, Missouri, Nebraska, Oklahoma, Tennessee, Texas, and northeast Mexico.[13] Habitats include limestone outcrops, glades, bluffs, rocky prairies, quarries, and roadsides.[7]
The flowers are pollinated by night-flying moths, such as sphinx moths (Sphingidae).[6]
The seed pods are often used in flower arrangements. This plant is also grown in gardens for its flowers.[14][15] It is suitable as a groundcover in poor, stony soil which does not become waterlogged in winter, in full sun. It has gained the Royal Horticultural Society's Award of Garden Merit.[2][16]
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