Thlaspi arvense

Arable Hellerkraut ( Thlaspi arvense)

The arable Hellerkraut ( Thlaspi arvense), also known as field - Täschelkraut, field moneywort or Ackertäschel called, is one of Central Europe common and frequently occurring member of the cabbage family ( Brassicaceae). It predominantly flowers from April to June, and occasionally to September.

Appearance

Most annual herbaceous plant reaches a height of about 10 to 40 cm. The whole plant is glabrous, yellow-green and smell when rubbed clear of garlic. The stem grows erect, is usually branched and edgy. All sheets except the lowest are sitting and arrow-shaped amplexicaul. They are oblong to narrowly obovate, entire or toothed. The grape is floriferous. Sepals are elliptically shaped and about 2 to 2.5 mm long. The petals are white, oblong, wedge-shaped, rounded to slightly emarginate and about 3 to 5 mm long. The little pods sitting on about 7 to 15 mm long and almost horizontal stems. You are almost circular, 12-18 mm long and broadly winged all around. You are strongly flattened and have at the top of a deep, very small incision. The stylus has a length of only 0.3 to 0.5 mm. Per seed tray silicles contains 4 to 7 dark brown, rounded ridged, ellipsoidal seeds.

Ecology

The arable Hellerkraut is an annual, summer or winter annual plant that is rooted deep to 50 cm and may therefore relatively insensitive to herbicides. When rubbed the leaves escapes a slight smell of leek.

The flowers are homo game to vorweibliche " nectar leading disk flowers ". The insects visit is sparse. Most spontaneous self-pollination takes place. It is typical that in the long racemes new flowers are created above, while below the first fruits are already ripe. Flowering is mainly from April to June, and occasionally to September.

The wide tree- rounded silicles serve as a wind catcher. The spread of diasporas is done is done as wind and animals, as well as spreaders Regenballist. People propagation takes place at the step propagation of seeds with field soil and their procrastination with harvesting equipment. The seeds are viable rich in fatty oil and up to 30 years. Fruit ripening is from May to November.

Occurrence

Habitat requirements

The arable Heller herb growing in weed societies, but also in ruderal and dumps. It prefers nutrient-rich, humus-rich, loamy soils in particular.

Popularization

Thlaspi arvense is practically spread throughout Europe, West Asia, Siberia, Japan and Algeria. Introduced it is also found in North America. In Austria and Switzerland, the species is widespread and common.

Distribution in Germany

The arable Hellerkraut is widespread in Germany and most frequently occurring.

Others

The name " Heller herb" or " Creeping Jenny " is derived from the plump little pods.