Annual, reproducing by seed.

I know its name now.

Curiosity compelled me to look it up.

I knew I had not planted this unknown

invader of garden space.

I could see that it was an attractive pale green, leaves deeply lobed, a tiny hard to see single white flower on a long curling fragile stem.

The round seed pod unusually large, a star shaped calyx at base.

But I felt as if I did not know it until I knew its name.