• Aucun résultat trouvé

L izard's tail

N/A
N/A
Info
Télécharger
Protected

Academic year: 2022

Partager "L izard's tail"

Copied!
1
0
0

Chargement.... (Voir le texte intégral maintenant)

Texte intégral

(1)

L izard's tail

(Saururus cernuus)

Originated in the eastern section of North America.

May become troublesome in its natural range. Introduced in Europe as an ornamental plant and has become naturalised in some cases.

D escription

n Perennial, herbaceous plant, ranging from 30 to 120 centimetres in height, with a highly characteristic zig-zagging stalk

n The rhizome can reach up to 5 metres in length

n Single, oblong, alternating leaves, heart-shaped at their base, from 10 to 12 cm long and 4 to 5 cm wide

n Spike inflorescence, in clusters, between 15 and 20 cm long

n Hermaphroditic flowers, 5 mm wide, with 6 free-standing stamens, 4 stigmates and 4 carpels almost free-standing two by two, on a whitish, petal-like sepal

n Flowers and leaves produce a pepper scent

n Fruit consists of 4 follicles, almost indehiscent, generally with a single seed

E cology and reproduction

n Prefers marshes, river banks, the bottom of shallow streams, swampy, wet forests

n Vegetative characteristics, fragile and soft in streams. Erect stalks and strong branches on river banks

n Flowers during the summer (June to September). The species is self-incompatible, but produces numerous seeds through cross-pollination

n Vegetative multiplication by producing sprouts along its rhizomes and through the development of adventitious roots on submergent stalks

D ocumentation

n Delaunay, G. 2005. Contribution à l’étude de la flore du Maine-et-Loire.

Un exemple de gestion d’une xénophyte à caractère envahissant : cas de la Lézardelle penchée (Saururus cernuus L. Sauracées). Symbioses. 13: 29- 31.

n Manual of the Alien Plants of Belgium. 2017. Saururus cernuus. [On line]. Document available at:

http://alienplantsbelgium.be/content/saururus-cernuus

n GT IBMA. 2017. Saururus cernuus. Base d’information sur les invasions biologiques en milieux aquatiques. Groupe de travail national Invasions bio- logiques en milieux aquatiques. UICN France et Agence française pour la biodiversité.

[On line]. Document available at:

http://www.gt-ibma.eu/espece/saururus-cernuus/

Author: Doriane Blottière, IUCN French committee.

Order Family Genus Species

Classification Piperales Saurururaceae

Saururus S. cernuus(Linné, 1753)

R ip ar ia n pl an ts

1

2

3

© R.H. Mohlenbrock © S. Turner© G. Delaunay© S. Turner© CIEI Wallonie

Species fact sheet drafted in January 2018 by the AFB and IUCN France national work group for biological invasions in aquatic environments.

155

Références

Télécharger maintenant ( PDF - 1 Page - 517.93 KB )

Documents relatifs

Biological invasions, national borders, and the current state of non-native insect species in Greece and the neighbouring Balkan countries

Understanding that non-native species cannot (and should not) be handled only as raw numbers, we employed a region-wide analysis of the species that in- vaded Greece and

Invasive alien species in aquatic environments Practical information and management insights

n The species colonised natural and artificial wetlands in the two regions, notably the park and national nature reserve in the town of Saint-Quentin-en-Yvelines, as well as

Invasive alien species in aquatic environments Practical information and management insights

n In 2009, a steering committee for invasive plant species was set up by the water stakeholders in the river basin to identify their mutual needs and define the necessary

I nvasive alien species in aquatic environments

This rule starts with the number of imported species in a given area and postulates a reduction by a factor of ten first in the number of introduced species, then in the number

I nvasive alien species in aquatic environments

This second volume presents an illustrated panorama of management projects for invasive alien species (IAS) in aquatic environments, discusses issues and outlines processes

French national work group on biological invasions in aquatic environments (GT IBMA)

 Managed jointly by the French national agency for water and aquatic environments and the IUCN French

Y ellow skunk cabbage

Species fact sheet drafted in November 2017 by the AFB and IUCN France work group for biological invasions in aquatic environments. Order Family

NOBANIS – Invasive Alien Species Fact Sheet

Establishment of the invasive perennial herb Bunias orientalis L.: An experimental approach – Acta Oecologia 20 (6): 621-632. Botanisches Taschenbuch für Liv-, Cur- Ehstland,