FloraOfNewZealand-SeedPlants-1-Heenan-2014-Hype ...

Hypericaceae in New Zealand comprises the genus Hypericum with 19 indigenous or naturalised species. There are two widespread indigenous species (H. involutum and H. pusillum) and two endemic species (H. minutiflorum and H. rubicundulum) with restricted distributions. H. minutiflorum has a conservation threat status of Nationally Critical and H. rubicundulum is Naturally Uncommon. There are 14 naturalised species, including the widespread H. androsaemum and H. perforatum. Hypericum gramineum is known from three collections from northern New Zealand and is of uncertain biostatus and maybe native or naturalised. This taxonomic treatment provides information on synonymy and typification for the indigenous species, a key for identification, descriptions, and notes on recognition, distribution, habitats and hybrids.