I clearly didn't read the fineprint - I didn't realise this is the new name for D. gunnii. The leaves look very different from the plants that I have taken to be D. gunnii on our own property and confirmed by several people...I wonder whether those need to be revised to D. varians (now Grona varians I see)? See Pullenia gunnii (A Tick-Trefoil) keen to get your thoughts.