Woodland Draba (Draba nemorosa) profile

Woodland Draba, Latin name: Draba nemorosa L., Cruciferae. Woodland Draba is an annual or biennial herb. Stem is erect, simple or branched, sparsely leaf blade or leafless, but branching stem with leaf blade; Woodland Draba is widely distributed in Northeast China, North China, East China in Jiangsu and Zhejiang, Northwest China, Southwest China in Sichuan and Xizang. On the side of the road, hillside grassland and river valley wetlands. It is found in other parts of the northern temperate zone. Using seeds as medicine, the main function is to purge lungs and reduce qi, reduce swelling and remove phlegm, stop coughing and settle asthma.

Woodland draba picture

Morphological characteristics of woodland draba

Stem branches

Woodland Draba is an annual or biennial herb. Stem is erect, 5 -- 45 cm tall, simple or branched, sparsely leaf blade or leafless, but branching stem with leaf blade; The lower part is densely single hairs, forked hairs and stellate hairs, the upper part is thinning to glabrous.

Leaf

Basal leaves of Woodland Draba roseate, long obovate, apically slightly obtuse, margin sparsely serrate or sub entire; Cauline leaves are long ovate or ovate, apically acute, base cuneate or acuminate, margin serrate, sessile, unilicate and forked hairs above, more stellate hairs below.

Flowers

Woodland Draba is a raceme with 25 -- 90 flowers, densely formed into a corymbiform, elongated and loose, with fine peduncles, 5 -- 10 mm long. Sepals are elliptic, abaxially slightly hairy; Petals are yellow, white after anthesis, obcuneate, ca. 2 mm, apical concave; Stamens of Woodland Draba are 1.8-2 mm long; Anthers are shortly cordate; Pistil is elliptic, densely short hairy, style barely developed, stigma small.

Fruit

Short pod of Woodland Draba is oblong or oblong, 4 -- 10 mm long, 1.1 -- 2.5 mm wide, short hirsute; Fruit pedicels are 8-25 mm long, spreading at right angles to the inflorescence axis, or nearly spreading upward at right angles.Seeds elliptic, brown, seed coat with verrucules.

Ecological habits of woodland draba

Woodland Draba is born in fields and roadsides, grasslands on slopes and wetlands in river valleys.

Woodland draba propagation

Sowing before late September, acupressure sowing according to the row bead spacing of 40cm×20cm, weeding and even seedlings and supplementary seedlings were combined in November and December, and 4-5 strong seedlings were left in each hole. The next February combined with a tillage weeding, human excrement 1 time.

Disease control of woodland draba

Soak the seeds with 5% salt water for 20min or pour 5% lime water into the hole when sowing.

Variety classification of woodland draba

Broadleaf Woodland Draba

Plants stronger, 4-20 cm tall.Basal leaves large, up to 5-6 cm long and 2 cm wide;Cauline leaves 4.5 -- 5 cm long and 1.5 -- 2 cm wide. Distribution in Shaanxi, Qinghai, Xinjiang, Sichuan;On hillsides or in forest meadows;It is 1,700-4,200 meters above sea level.The type specimens were collected from Kangding, Sichuan.

Light fruit Woodland Draba

Short pod glabrous. Produced in Northeast China, Inner Mongolia and other places. It is distributed in northern Europe.Born in the hillside grass. The type specimens were collected from northern Europe.

The distribution of Woodland Draba

Woodland Draba is widely distributed in Northeast China, North China, East China in Jiangsu and Zhejiang, Northwest China, Southwest China in Sichuan and Xizang. It is found in other parts of the northern temperate zone.

The type specimens of Woodland Draba were collected from Europe.