I have a plant in the garden that is hardy, but I have no idea what kind of plant it is. I’m sending a photo and hope you know. The branches are purple in color, the lower leaves are dark green and sharply tapered. Many thanks for your answer.
Asker: Rudolph, 48 years old

Answer
Dear Rudolphe,
I think this is the crossleaf spurge (Euphorbia lathyris L.).
Answered by
drs. Marc Reynders
Biology, systematics and evolution of seed plants. Specialized in tropical Cyperaceae.
university of Ghent
http://www.ugent.be
.