Scientific Name:
Centaurium Hill, Brit. Herb. 62 (1756)
  • = Erythraea Borkh. nom. illeg.

Annual or occasionally perennial, usually glabrous herbs, erect, spreading or cushion-like. Lvs opposite, sessile, sometimes amplexicaul. Fls in terminal dichasial cymes, arranged in corymbiform, capitate or spicate infls, (4)–5-merous. Calyx deeply lobed; lobes keeled, usually linear. Corolla salverform or ± funnelform, usually pink to purplish rose. Stamens usually inserted near apex or upper part of corolla tube; anthers linear or nearly so, twisting spirally after dehiscence. Style filiform, caducous; stigmas 2. Capsule fusiform to oblong-ovoid or ellipsoid; valve margins often intrusive. Seeds numerous, minute.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

Number of species in New Zealand within Centaurium Hill
Exotic: Fully Naturalised2
Hill, J. 1756-1757: The British Herbal: an history of plants and trees, natives of Britain, cultivated for use, or raised for beauty. Osborne and Shipton, London.
Mabberley, D.J. 2008: Mabberley's plant book, a portable dictionary of plants, their classification and uses. Edition 3. Cambridge University Press.
Mansion, G. 2004: A new classification of the polyphyletic genus CentauriumHill (Chironiinae - Gentianaceae): description of the New-World endemic Zeltnera, and reinstatement of Gyrandra Griseb., and Schenkia Griseb. . Taxon 53(3): 719–740.