Been weeding my aunt's garden, and she has a lot of a particular weed - it's
got kind of ivy shaped leaves, shallow roots (sometimes with a bulbous bit
of the root, which I guess is where it's going to multiply from) and an
occasional yellow flower that looks familiar (and slightly similar to a
dandelion, but less petally, and smaller).

Can anyone point me at what it is, please?
Ta.

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