The leaves aren't at all like the Ambrosia artemisiifolia I'm familiar with: not only the reddish color, but also much too finely cut. I believe I've read that most if not all in those genuses/genera are known for leaves with undersides which are whitish or "silver." If you don't have a similar source for Canada, this at least shows southern Canada: you can look under Asteraceae, then click on Ambrosia and Artemisia to see which types live where, then search for photos on the Internet. [Near the top of the linked page is a link to the "Map Color Key".] http://bonap.net/NAPA/Family/Traditional/County

Yep definitely some kind of Eucomis.

Thank you very much for your response, Bushhog936. I have tried to take some pictures here: http://www.myalbum.com/Album=FY87TF4L Please see if you can identify this. Unfortunately, this doesn't look like gall wasp at all because - 1. The lobes are not "stuck" on the leaf. They are developed from within the leaf surface. The gall wasp seems to build the round balls on top of the leaf (so the leaf and the lobes are technically separate), but this bug has modified the leaf structure itself, which looks exactly like a cancerous growth. 2. The lobe is green with dark brown spots, unlike the wasp lobes which are all brown. thank you! Here is a link that might be useful: Leaf Infestation

98% sure they're beetle eggs and they look a lot like lady beetle (ladybug) eggs but many beetle eggs look almost the same with slight differences. Look up a picture of a lady bug larva and watch to see, or get rid of them.