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Oenothera drummondii, the beach evening-primrose, is a species of flowering plant in the family Onagraceae. [2] It is native to Mexico and the southeastern United States, and it has been introduced to many locations around the world. [1] It is found on coastal dunes and other disturbed sandy areas at elevations below 400 m (1,300 ft). [3]
Certain Oenothera plants have edible parts. The roots of O. biennis are reportedly edible in young plants. So are the flowers which have a sweet, crunchy taste. [20] The common evening primrose, O. biennis, is commonly sold as a dietary supplement in capsules containing the seed oil. [21]
The primrose moth (Schinia florida) is a common consumer of Oenothera biennis. The adults lay eggs on the flower, and the emerging caterpillars feed on the plant. Pink wing tips reveal Schinia florida in the flower of the evening primrose. Primrose moth, Schinia florida, on an evening primrose, petals have been removed to reveal the insect.
Oenothera humifusa, the seabeach evening primrose, is a species of flowering plant in the family Onagraceae. [2] It is native to the beaches of Bermuda and the eastern United States from Louisiana to New Jersey, and it has been introduced to Cuba. [ 1 ]
Oenothera pallida, the pale evening-primrose, is a species of flowering plant in the family Onagraceae. [2] It is native to British Columbia, the western United States, and northern Mexico. [ 1 ] Flowers start out white and fade to pink.
Oenothera fruticosa, the narrowleaf evening primrose [1] or narrow-leaved sundrops, is a species of flowering plant in the evening primrose family. It is native to much of eastern North America, [ 2 ] where it is found in a variety of open habitats, including dry woodlands, rock outcrops and moist savannas.
Pollen itself is not the male gamete. [4] It is a gametophyte, something that could be considered an entire organism, which then produces the male gamete.Each pollen grain contains vegetative (non-reproductive) cells (only a single cell in most flowering plants but several in other seed plants) and a generative (reproductive) cell.
Oenothera speciosa is a herbaceous perennial wildflower.It has glabrous (smooth) to pubescent stems that grow to 50 centimetres (20 inches) in height. The pubescent leaves are alternate with very short or no petiole (sessile), reaching 10 cm (4 in) long to 4 cm (1 + 1 ⁄ 2 in) broad.