New Zealand foam herb
| New Zealand foam herb | ||||||||||||
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New Zealand foam herb ( Cardamine corymbosa ) |
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| Cardamine corymbosa | ||||||||||||
| Hook.f. |
The New Zealand foam herb ( Cardamine corymbosa ) is a species of the foam herbs ( Cardamine ) in the cruciferous family (Brassicaceae). This species from New Zealand is a neophyte in Central Europe .
description
Vegetative characteristics
The New Zealand foam herb is a perennial herbaceous plant . It is very variable in its vegetative appearance, resembling the hairy and the forest foam herb . The ascending to prostrate stem has a maximum of two to three leaves.
The New Zealand foam herb can easily be recognized as a foam herb species by the typically formed, pinnate leaves standing together in a basal rosette . The pinnate leaves with a maximum of four pairs of leaflets can be glabrous or hairy, with the terminal leaflets larger than the lateral leaflets.
Generative characteristics
The small, variable inflorescence and later infructescence compared to other foamy herb species is not regular and racemose , as is typical for cruciferous vegetables , but rather appears umbrella-like with only a few flowers. The relatively large flowers have four petals overlapping petals and six stamens .
The slender fruit stalk can be very short or up to 5 cm long. The 10 to 22 mm long, slender pods sometimes seem to arise from a point; often only one to four pods are formed.
Occurrence
Cardamine corymbosa is native to New Zealand . It has been observed as a neophyte in Scotland since 1991. The New Zealand foam herb was probably introduced with planting material and quickly spread through tree nurseries and plant dealers in Great Britain and Ireland. Around 1999/2000 this species reached the Netherlands and Belgium. So far, four observations have been made from Germany.
Individual evidence
- ↑ a b c d Ivan Hoste & Paul Mertens: A New Alien in Nurseries and Gardens: Cardamine corymbosa Hook. f. in Oldenburg (Lower Saxony) , In: Floristische Rundbriefe , 41, 2008, pp. 43–43.
- ↑ a b c d flora-deutschlands.de.
- ↑ Ivan Hoste, René van Moorsel & Rutger Barendse: A nieuwkomer in sierteeltbedrijven en tuinen: Cardamine corymbosa in Nederland en België. , In: Dumortiera 93, 2008, pp. 15-24.
- ↑ Bernd Sauerwein 2010: Find report 1725. Botany and nature conservation in Hessen.
- ↑ Yearbook 2011 of the Bochum Botanical Association: Bomble, FW: Critical and little-known vascular plant species in the Aachen area (PDF; 1 MB)
- ^ Weiss, V .: First find of Cardamine corymbosa HOOK. f., New Zealand foam herb, in Central Germany. Information on floristic mapping in Thuringia 36, 2017, pp. 59–60
Web links
- Distribution in the Netherlands [1] (Dutch)
- Distribution in Great Britain and Ireland [2]
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )