This weed has been growing in my neighbors yard and this summer it grew to over six feet tall. It is right beside his garage, but the flowers are now nodding over my fence. It has a bamboo like stem and drooping pannicles. Is this the dreaded Japanese knotweed?
Perhaps a pokeweed, Phytolacca americana. Species of the Week - Pokeweed - Phytolacca americana - Oklahoma Biological Survey
It looks like Phytolacca amaericana to me too. This came up on my Flickr feed today: Pokeberry. Phytolacca americana. Phytolaccaceae. The berries are especially poisonous.
Thank you for the quick replies. Yes, this is one and the same plant. I’ll sleep tonight knowing it’s not knotwood!
Definitely a Phytolacca, but the ribbed berries look more like P. acinosa (an invasive species from eastern Asia) than P. americana (in BC, also an invasive non-native species, from eastern N America). Not 100% sure though; if the berries remain ribbed to maturity, then it is P. acinosa; berries of P. americana can be slightly ribbed when immature but become smooth at maturity.
