On Tue, 22 Jun 2010 05:39:13 -0700 (PDT), Rob
wrote:

Last year, this group helped me to identify oxalis as a very invasive
weed in my garden.
I seem to have two sorts:
one grows from little groups of bulbs (which I have seen called
bulbils). At this time of the year each bulb produces a oxalis-typical
triplet of heart-shaped leaves on a single long stem.
The other sort grows from a relatively deep, thin tap root and above
ground has many leaf triplets on several stems.

Are these different species of oxalis ?
Or, are they the same species at different stages of development ?

Thanks in advance.

I grow for enjoymentpink flowered oxalis articulata. It grows from a
corm (?) which grows a new one on top of the old each year, so you get
a clump of them a bit like vertaebrae. My originals came from my
parents' garden and before that from my Grandfather.
It flowers all summer and is NOT invasive. Clumps can be divided,
I also have 3 others which are invasive. I have wood sorrel which
spreads happily about by seed and is easily removed if necessary.
The other two are a nuisance. Similar plants, spreading over the
ground by creeping roots and also by explosive seed pods, One has
bronze leaves, the other green and both have yellow flowers,

Pam in Bristol