Scientific name: Oenotherabiennis
Alias: night primrose, mountain sesame, wild sesame
Species: Perennial herb
Origin:
Originated in North America and introduced to Europe, it is introduced into all parts of the world.
Family Genus Lilium
Growth characteristics:
Evening Primrose is resistant to cold, drought, barren, hi light, avoid water, pumping vines need a certain low temperature stimulation.
Morphological characteristics:
Two-year-old plants are 100-140cm tall; annual height is 60-90cm. Basal leaves clustered in rosettes, stem leaves alternate, lower leaves narrowly long lanceolate, short upper leaves. Stems erect, branched. The fleshy roots were twitched and the whites were hypertrophic, and the main roots were lignified after twitching. Yellow flower, flower diameter 4-5cm. The petals fall heart-shaped. Flowering from June to October, fruit ripening period from January to November.
Reproduction method:
Live or seedling transplanting. Seeds in direct seeding should be treated at a low temperature in advance and then sown with a sowing volume of 0.2 g/m2 and a cover soil of about 0.5 cm after sowing. month
use:
See the grass flower opening at night, pleasant aroma, suitable for embellishing the night scene, with other green materials for gardens, gardens, flower beds and roadside greening.
Other varieties:
There are about l00 species of the same genus, commonly cultivated are: O.drummondii; O.odorata; O.speciosa.
The original plants in the northeastern region of China are all wild plants. In order to meet the demand for evening primrose oil in domestic and foreign markets, large-area artificial cultivation has been carried out in recent years, and large-scale planting has been carried out in Jilin, Liaoning, Inner Mongolia, and Scientific research, high yield, high oily evening primrose has been successfully developed.
Evening primrose oil is prepared from mature seeds of evening primrose, and the oil content of different species of grass seed is between 15% and 25%. In addition to palmitic acid, oleic acid, linoleic acid, and stearic acid, the content of γ-linolenic acid is 7% to 10%. Therefore, evening primrose oil has very obvious functional characteristics. Evening primrose oil and its finished products have a wide range of medical and medicinal values ​​in the treatment of hypertension, prevention of cerebral thrombosis, lipid lowering, hypoglycemic and anti-aging.
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