LE FORUM DES FOUS DE PALMIERS

Zifool a écrit :Acacia verticillata des fois non ?

gimli a écrit :C'est un Albizia : Albizia lophanta.

Hallu a écrit :. Attention, c'est un invasif dans de nombreux pays. Ne le laisse surtout pas partir en graines, coupe les fleurs. Ce n'est pas précisé sur la pépinière "jardin exotique de Roscoff" qui en vend par exemple, et je ne trouve pas ça normal, c'est à eux d'informer leurs clients. Les plantes invasives sont un gros problème en France et en Europe, et une des raisons principales est que les pépinières ne se renseignent pas et/ou n'informent pas leurs clients...

Cape Wattle (Paraserianthes lophantha)

Cape Wattle or Cape Leeuwin Wattle is the common name for Paraserianthes lophantha, a small tree to 5 metres high. It has creamy-yellow, bottlebrush like flowers. Although it is not a wattle, it is in Mimosaceae, the same family as wattles, and therefore closely related. It’s much dissected, feathery leaves have close similarities to some of the bipinnate Acacias such as Black Wattle A. mearnsii, and this, maybe, is the reason behind its common name.

This weed is an Australian native originating from coastal areas between Fremantle and Albany in southwest Western Australia. The large seed pods are green at first, but mature to dark brown, after which they split open to reveal large black seeds, which are spread by birds, particularly, but also by water, garden mulch and contaminated soil. Seeding is prolific, with fire stimulating the growth of thousands of seedlings. This plant is an aggressive weed, and has become a major threat to our indigenous flora along the Surf Coast. It is fast growing, reaching 2–3 m in two years, and it flowers and sets seed in the second year.

Single specimens in private gardens provide a seed source that is likely to spawn dense thickets on our coastal reserve. To control this weed, you can pull seedlings quite easily by hand, but you must cut the trunks of larger plants at ground level, and paint the stumps with a systemic herbicide. It is crucial that whenever you see Cape Wattle, you remove it as soon as possible, as it will cause major infestations in our coastal reserves. Suitable replacements for the garden could include Black Wattle Acacia mearnsii or Golden Wattle Acacia pycnantha, both of which should be available from local indigenous nurseries.

Refer to: Environmental Weeds: Invaders of our Surf Coast-page 20, 2007 edition p. 20.

Hallu a écrit :C'est même Paraserianthes lophantha. Ce n'est plus considéré comme un acacia, et c'est normal vu la tronche de ses fleurs. Attention, c'est un invasif dans de nombreux pays. Ne le laisse surtout pas partir en graines, coupe les fleurs. Ce n'est pas précisé sur la pépinière "jardin exotique de Roscoff" qui en vend par exemple, et je ne trouve pas ça normal, c'est à eux d'informer leurs clients. Les plantes invasives sont un gros problème en France et en Europe, et une des raisons principales est que les pépinières ne se renseignent pas et/ou n'informent pas leurs clients...