A new weed invasion in Gahnia Grove

In the Arena, at the top where it was previously mown kikuyu.

Giant Swan plant
https://inaturalist.nz/observations/20939024

Apparently there's another species of Swan plant, with ovoid fruit/follicles. This new invasion could be either, at this stage, but is probably Gomphocarpus physocarpus, the species commonly observed in the neighbourhood.

We will probably never know for sure, as I don't intend to become responsible for monitoring its seed spread here by allowing it to grow to fruiting stage.

Posted on March 5, 2019 06:23 AM by kaipatiki_naturewatch