In message , Ron Hardin
writes
What's this umbrella-like weed, Central Ohio
http://home.att.net/~rhhardin5/w30.jpg

Does it put out a flower eventually, or am I watching them in vain?

Might be Podophyllum peltatum (mayapple), but that is another plant I've
never seen in the phloem.
--
Stewart Robert Hinsley