Abroma augusta (Devils cotton) profile

Written by Maggie

Mar 12 2021

Abroma augusta (Devils cotton) profile

Abroma Augusta, commonly called Devil's cotton, is a shrub whose twigs are densely covered with starlike hairs when young; Leaves are cordate or ovate-cordate; There are flowers and fruits, cymes with red purple flowers 1-5, spoon-shaped petals are red purple; Capsule is membranous, obconical, black seed majority, moment round. Abroma Augusta grows in warm, moist, well-lit and humus rich humid soil. They are distributed in China, India, Vietnam, Malaysia and other places.

Abroma Augusta has good medicinal value, such as circulating menstruation and promoting blood circulation, reducing swelling and relieving pain.

Abroma Augusta picture

Abroma Augusta

Morphological characteristics of Abroma Augusta


Abroma Augusta is a shrub, 1-4 m tall, branchlets are densely covered with starlike hairs when young.


Leaves of Abroma Augusta are cordatate or ovate-cordate, sometimes 3-5 lobed, 10-22 cm long and 9-18 cm wide, acute or acuminate at apex, cordatate or obtrate at base, glabrous or sparsely stellate pubescent above, densely short velutinous below, basal veins 3-7, veins protruding on both sides; Petiole is 1-10 cm long; Stipules are oblate, 5-10 mm long, glabrescent.


The cyme of Abroma Augusta has 1-5 flowers; Reddish-purple, about 5 cm in diameter; Abroma Augusta has 5 sepals, connate near base, lanceolate, 15 -- 18 mm long, densely pubescent on both surfaces, petals 5, reddish purple, spatulate, 2.5 cm long, apical acute or obtuse, base concave and hairy, connate with base of stamen; 15 developed stamens, each 3 gathered into a group, in the base of stamens and stamens alternate, stamens 5, nearly spatulate, hair on both sides; Ovary is rectangular, ca. 1.5 mm long, slightly hairy, 5-loculed, with 5 furrows, ca. 1.5 mm long, style triangular-liguate, ca. 1/2 of the ovary.


Capsules of Abroma Augusta are membranous, obconic, ca. 3-6 cm in diam., stellate, 5-winged, margin hirsute, apically truncated; Seeds are numerous, rectangular, black, ca. 2 mm long.

Abroma Augusta's flowering season is spring and summer.

The ecological habits of Abroma Augusta

Abroma Augusta prefers warm, moist, well-lit, humus-rich moist soil.

Abroma Augusta was born at the edge of a valley or forest.

Abroma Augusta

Abroma Augusta's propagation

Spring sowing

In spring, direct seeding and seedling transplanting were conducted. According to the row spacing of 50cm×50cm, acupoints were planted for direct seeding, and 5-6 seeds were planted for each acupoint. After sowing, 2cm of fine soil was covered with water and moisturized. Germinate in 10-15 days.

Seedling transplanting

The row spacing is 25cm and the drill is ditched. Seed 8-10cm apart, after sowing, cover with fine soil 2cm, water moisture. When the seedling height of Abroma Augusta was 35cm, the row spacing was 40cm×40cm.

Field management

When the height of hill-sowed seedlings was 10cm, the seedlings were thin, plowed and weeded 4 times a year, applied compound fertilizer or farm manure once in May and August, applied compost or barnyard manure once in winter, and earth-raising was carried out.

The distribution area of Abroma Augusta

Abroma Augusta is produced in Guangdong, Guangxi, Yunnan and Guizhou provinces.On the edge of valleys or forests.

Abroma Augusta is also found in India, Vietnam, Malaysia, Thailand, Indonesia, the Philippines and other places.

Abroma Augusta uses

Medical use

Abroma Augusta leaf oil infusion can also be used for some skin diseases, and as a washing agent for wounds, ulcers and fistulas. Abroma Augusta leaf oil can drive hookworm after internal administration, and its tannic acid has mild astringent property. Its volatile oil can drive wind. The volatile oil is absorbed from the digestive tract and partially excreted by the respiratory tract. In addition, Abroma Augusta oil is also used as a deodorant and analgesic for people with neuropathic pain. Some people believe that Abroma Augusta has a local anesthetic effect.

Landscape use of Abroma Augusta

Abroma Augusta can be cultivated in the garden for viewing, but also can be used as a mirror, flower beds with planting.

Abroma Augusta's stem bark can be woven.

Abroma Augusta