[Scientific name]:]: Petunia (Linn. ) Choisy morning glory

[Family Name]: Convolvulaceae

[Genus Name]: Petunia

[Origin]: This species is native to tropical America and widely cultivated in tropical and subtropical regions.

Morning glory has entered the ranks of traditional famous flowers with a history of more than 1000 years. Not only is it famous for its flower spectrum, flower records and masterpieces, but there are also many poems and songs in past dynasties.

Morning glory alias morning glory, morning glory, morning glory. It is an annual twining herb flower of Petunia in Convolvulaceae. The vines are slender, about 3 meters to 4 meters, and the whole plant is densely covered with short bristles. Leaves alternate, entire or lobed. Cymes axillary, 1 to several. Corolla trumpet-shaped The color is bright and beautiful. Capsule is spherical, cells crack after maturity, seeds are large, black or yellow-white, and life is long. The flowering period is from June to 10, and it usually opens at noon.

Morphological characteristics:

Annual twining herbs, the plants are hairy. Leaves alternate, broadly ovoid or suborbicular, usually 3-lobed, apex lobes oblong or ovoid, lateral lobes short, triangular and pilose. Autumn flowers, axillary inflorescence, 1 ~ 3 flowers, or solitary flowers in leaf axils, sepals 5, corolla blue-purple gradually lavender or pink, funnel-shaped, corolla tube light-colored, stamens 5, varying in length, filaments pilose at the base. Ovary 3-loculed, stigma capitate. Capsule, subglobose, seeds ovoid trigonous, dark brown or beige, covered with brown fluff. Native to tropical America, it is widely cultivated for viewing in China. Seeds are commonly used Chinese medicines, black "black ugly" and beige "white ugly". Contains resin glycoside, pigment, fatty oil, organic acid and other ingredients. Black ugliness is often used in medicine, which has the function of catharsis and diuresis, and is mainly used for edema, abdominal distension, dysuria and so on. Black ugly, that is, the seeds of black morning glory, are ground into fine powder, applied with egg white before going to bed, washed off with clear water the next morning, and used continuously for a week, which has the effect of eliminating freckles. The seeds of fruit plums can also be used to replace the seeds of black morning glory, with the same effect. It is particularly important to note that black and ugly are slightly toxic and should not be taken orally.

Habitual characteristics

1-2-year-old twining herb with a height of 3 meters. There are many varieties, blue, crimson, pink, purple or mottled mixed colors, and the edge of petals changes greatly.