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Rorippa sylvestris

Creeping yellowcress

Habitus (CC BY-SA 4.0) Stefan.lefnaer

Short Description

The creeping yellowcress can grow up to 60 cm high.

The leaves are lobed almost to the midvein. The leaf margin is toothed. The upper leaves often have narrower sections with a smooth margin.

The prostrate or ascending stem is branched. It is glabrous or sparsely covered with very short hairs.

The flowers are clustered at the end of a grape-shaped flower cluster. They are yellow and have four sepals and four petals.

The fruits are stick-shaped pods.

Features

Creeping yellowcress

Rorippa sylvestris

  • four yellow petals

  • deeply incised leaves

Similar species

Bog yellowcress

Rorippa palustris
The leaves have a distinctly larger terminal section. The fruits are "sausage-shaped".
Habitus (CC BY-SA 3.0) Fornax

In the city

In the city, it is found on the banks of rivers and lakes, along paths, in pastures and lawns and in arable furrows. It thrives best on mostly moist, nutrient-rich, nitrogenous soils. It acts as a soil stabiliser on banks and is an indicator of soil compaction.

Fun Facts

  • It reproduces by seed and by underground runners.

  • It winters green. It lives for several years and generally flowers and fruits annually (perennial plant).

  • The flowers attract bees, hoverflies and bumblebees as pollinators.

  • In rainy weather the petals only open halfway and spontaneous self-pollination takes place.

  • The flowering period is from May to September.

  • Endangerment level Germany: not endangered

  • It is native to Germany and quite common.

Blütenstand (CC BY-SA 4.0) Stefan.lefnaer

Sources

Habitus, Stefan.lefnaer, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/File:Rorippa_sylvestris_(s._str.)_sl17.jpg

Habitus, Fornax, CC BY-SA 3.0, https://commons.wikimedia.org/wiki/File:Rorippa_sylvestris_eF.jpg

Blütenstand, Stefan.lefnaer, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/File:Rorippa_sylvestris_(s._str.)_sl13.jpg

Kammer, P. M. (2016) Pflanzen einfach bestimmen. Schritt für Schritt einheimische Arten kennenlernen, Bern: Haupt Verlag.

Spohn, M., Golte-Bechtle, M. & Spohn, R. (2015) Was blüht denn da? Stuttgart: Franckh Kosmos Verlag.

Page „Wilde Sumpfkresse“. : Wikipedia, The Free Encyclopedia. Date of last revision: 28.02.2018, 22:26 UTC. URL: https://de.wikipedia.org/w/index.php?title=Wilde_Sumpfkresse&oldid=174493595 (Accessed: 24.08.2018).