Webb, C.J.; Johnson, P. N. 1982: Hydrocotyle (Umbelliferae) in New Zealand: the 3-foliate species. New Zealand Journal of Botany 20: 163–168.
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| Webb, C.J.; Johnson, P. N. 1982: Hydrocotyle (Umbelliferae) in New Zealand: the 3-foliate species. New Zealand Journal of Botany 20: 163–168. |