Unyielding Freedom-- Evening Primrose

Evening primrose (Evening Primrose) is a species of Evening Primrose (Willow Leaf Family). Strong adaptability, acid and drought resistance, lax requirements on the soil, generally neutral, slightly alkaline or slightly acidic soil, good drainage, loose soil can grow, it is easy to get disease in the wet soil. There are annual plants in the north and biennial plants in the south of the Huaihe River. It is the most important nutritional drug discovered in this century. It can treat a variety of diseases, regulate blood lipids, and has a significant effect on coronary artery infarction, atherosclerosis and cerebral thrombosis caused by high cholesterol and hyperlipidemia.

Evening primrose

Morphological features:

Erect biennial coarse herbs, basal rosette leaves close to ground; stems 50-200 cm tall, unbranched or branched, pilose and extended long hairs (blister at the base of hairs), often mixed with glandular hairs on the upper ends of stem branches.

Basal leaves oblanceolate, 10-25 cm long and 2-4.5 cm wide, apex acute, base cuneate, margin sparsely irregular shallowly obtuse teeth, lateral veins 12-15 per side, both surfaces curly pilose and long hairy; petiole 1.5-3 cm long. Cauline leaves elliptic to oblanceolate, 7 × 20 cm long and 1 × 5 cm wide, apex acute to shortly acuminate, base cuneate, margin 5 × 19 sparse obtuse teeth on each side, lateral veins 6 × 12 on each side, both sides of each side are pilose and long hairy, especially the upper leaves of the stem are often mixed with leaf margin with glandular hairs; petiole 0 × 15 mm long.

Inflorescences spikelike, unbranched, or with secondary lateral inflorescences below the main inflorescence; bracts leaflike, bud length and flower 1-apical 2, elliptic-lanceolate when growing up, from large to small from bottom to upward, subsessile, 1.5-9 cm long and 0.5-2 cm wide, persistent when fruiting, buds paniculate-oblong, 1.5-2 cm long, 4-5 mm thick, tip with a beak about 3 mm long Flower tube 2.5-3.5 cm long, 1-1.2 mm in diameter, yellowish green or reddish when flowering, mixed pilose, extended long hairs and short glandular hairs; deciduous after anthesis Sepals green, sometimes reddish, oblong-lanceolate, 1.8 × 2.2 cm long, lower broad 4 × 5 mm, apex abruptly shrunk into a tail, 3 × 4 mm long, erect in bud, close to each other, reflexed from base when open, but turned upside down in middle, indumentum homotubous; petals yellow, light yellow, broadly Obovate, 2.5 cm long, 2 cm 2.8 cm wide, apex emarginate; filaments nearly equal in length, 10 cm long Anthers 8-10 mm long, pollen ca. 50% developed; ovary green, Terete, 4-angled, 1-1.2 cm long, 1.5-2.5 mm thick, densely extended long hairs and short glandular hairs, sometimes mixed villous; style 3.5-5 cm long, protruding tube 0.7-1.5 cm long; stigma surrounded by anthers. During flowering, the pollen is directly attached to the stigma lobes, and the lobes are 3-5 mm long.

Capsule conical-Terete, narrowing upward, 2-3.5 cm long, 4-5 mm in diameter, erect. Green, indumentum with ovary, but gradually sparse, with conspicuous ribs. Seeds arranged horizontally in fruit, dark brown, prismatic, 1-1.5 mm long, 0.5-1 mm in diameter, angular, each with irregular pits.

Evening primrose

Medicinal value:

Dispelling rheumatism; strengthening muscles and bones. The main wind-cold-dampness arthralgia; soft muscles and bones, promoting blood circulation and dredging collaterals; relieving wind and calming the liver; detumescence and sores. Main chest pain; apoplectic hemiplegia; deficiency wind internal movement; infantile hyperactivity; rheumatic numbness; abdominal pain diarrhea; dysmenorrhea; fox confusion; sores; eczema.

Economic value:

The flower of this species has a beautiful fragrance and is often cultivated and ornamental. Flowers can extract aromatic oil; seeds can extract oil for edible and medicinal purposes; stem bark fiber can make rope; its seed oil content reaches 25.1%, of which Y ~ linolenic acid is 8.1%, which is the most promising species.

Evening primrose

Plant culture:

There is a saying that when women present evening primrose to men, it represents' silent love; there is also a common saying that evening primrose represents an unyielding heart and a free heart; others say that the flower language of evening primrose is the magic of 'beauty after bathing'.