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Arabis hirsuta

Hairy rockcress

Habitus (CC BY-SA 4.0) Espirat

Short Description

Hairy rockcress can grow up to 80 cm high.

The leaves on the stem are narrow and elongated. They have a roughly serrated leaf margin. The leaves at the base are in a rosette. They are less toothed or have entire margins.

The whole plant is rough-haired. The stem is erect. Upper leaves and pods are pressed to the stem.

The flowers are in narrow racemose inflorescences. They have four white petals.

The fruits are long, narrow pods.

Features

Hairy rockcress

Arabis hirsuta

  • hairy

  • long, narrow pods

Similar species

Shepherd's purse

Capsella bursa-pastoris
The plant is considerably less hairy. The fruits (silicles) are triangular.

Hoary alyssum

Berteroa incana
The plant is considerably less and also grey-felty hairy. The fruits (silicles) are triangular.
Blüten (PD) Javier martin

In the city

In the city, hairy rockcress is often found on embankments and along paths. It prefers neglected grasslands and nutrient-poor soils.

Fun Facts

  • The flowering period is from May to July.

  • It belongs to the cruciferous family, the same plant family as mustard, rocket and cabbage.

  • The four crosswise arranged sepals and petals of the flower, its four longer and two shorter stamens and the pod fruits are typical of the cruciferous plant family.

  • It is usually a biennial plant. This means that a plant lives for two years, but flowers only once and dies after the seeds have ripened.

  • Endangerment level Germany: Warning list
Blüten und Früchte (CC BY-SA 3.0) Hedwig Storch

Sources

Habitus, Espirat, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/File:ARABIS_Hirsuta.jpg

Blüten, Javier martin, PD, https://commons.wikimedia.org/wiki/File:Arabis_hirsuta_FlowersCloseup_2009-4-04_DehesaBoyalPuertollano.jpg

Blüten und Früchte, Hedwig Storch, CC BY-SA 3.0, https://commons.wikimedia.org/wiki/File:Rauhaarige_G%C3%A4nsekresse_(Arabis_hirsuta)_5731.JPG

Spohn, M., Golte-Bechtle, M. & Spohn, R. (2015) Was blüht denn da? Stuttgart: Franckh Kosmos Verlag.*Jäger, E. J. (2011) Rothmaler - Exkursionsflora von Deutschland. Gefäßpflanzen: Grundband, Heidelberg: Spektrum Akademischer Verlag.

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

Schauer, T., Caspari, C. & Caspari, S. (2015) Der illustrierte BLV-Pflanzenführer für unterwegs. 1150 Blumen, Gräser, Bäume und Sträucher, München: BLV.

Page „Rauhaarige Gänsekresse“. : Wikipedia, The Free Encyclopedia. Date of last revision: 29.12.2016, 09:34 UTC. URL: https://de.wikipedia.org/w/index.php?title=Rauhaarige_G%C3%A4nsekresse&oldid=161060539 (Accessed: 21.06.2017).