If you know what they are, please enlighten me.
I had just two of these come up last year, and the landlord mowed them down because he got lost on his little power trip.
I hope he is better in tune with nature, this year.
These below come up every year, they are firmly established having survived 15 years of getting mowed down every year.
This next one shows what 15 years of two smokers does to a house, and everything in it.