Passage of weeds

After my last few posts, one might imagine that everything out right now is pink.  However, the weeds are not.  The dandelions are up and starting to flower (must tackle them seriously at the plot).  They're not at anything like their peak.  I think I've seen a couple of proper dandelion clocks, but basically they are just starting to make some lawns yellow.  In the bit of waste land on the way to work, the coltsfoot are over and now a sort of bamboo-like bush is growing.  I don't know what it is, but it grows like gangbusters.