Hydrocotyle novae-zeelandiae DC.
H. dichondraefolia A. Cunn. in Ann. nat. Hist. 2, 1839, 211.
Stems slender, up to 3 dm. long, branched, creeping, rooting at nodes, ascending at tips (sts suberect or scrambling), ± pilose. Lvs on slender retrorsely pilose petioles 1-5-(8) cm. long. Lamina (5)-10-30-(40) mm. diam., ± obscurely 5-9-lobed; lobes shallow, obscurely crenately (occ. subdentately) toothed, member. to subcoriac., pilose to nearly glab.; sinus narrow to broad. Umbels (2)-5-(12)-fld, forming heads up to c. 7 mm. diam., on peduncles 1-3-(6) cm. long. Fls subsessile. Fr. ± 2-3 mm. diam., ± flattened, glab., pale to whitish brown. Mericarps rounded on back (rarely acute); facial rib indistinct to evident.
The following is a tentative key to the other described forms:
Key
DIST.: N., S., St., Ch., A., C. Common in damp grassland, wet ground and forest margins throughout.
FL. 10-12. FT. 11-3.
A very polymorphic sp. still ill-resolved. I have seėn only fragments of H. dichondraefolia A. Cunn., which is described as: "foliis cordato-reniformibus lobato-crenatis 7-nerviis minutissime scabris, petiolis hirtis pedunculo glabro longioribus, umbellis sub 6-8 floris, fructibus didymis glabris utrinque 1-costatis . . . In bogs at Waimate and Keri-Keri river.―1834, R. Cunningham."
