Classification
Class
Magnoliopsida Brongn.
Order
Caryophyllales Juss. ex Bercht. & J.Presl
Family
Polygonaceae
 Subordinate Taxa
 Nomenclature
Scientific Name:
Emex Neck. ex Campd., Monogr. Rumex 56-60 (1819)
 Description

Glabrous, monoecious annuals with lax or prostrate stems. Lvs cauline, ± oblong with broad bases; ochreae soon lacerate. ♂ fls in terminal or axillary, pedunculate clusters; pedicels filiform; perianth segments (5)–6, free, green; stamens 4–6. ♀ fls in sessile axillary fascicles; perianth segments (5)–6, connate below to form a triangular tube; styles 3; stigmas penicillate. Fr. a trigonous nut included in the hard accrescent perianth, the 3 outer segments of which are spine-tipped.

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

 Biostatus
Exotic
Number of species in New Zealand within Emex Neck. ex Campd.
CategoryNumber
Exotic: Fully Naturalised1
Total1
 Bibliography
Campdera, F. 1819: Monographie des Rumex. Treuttel et Würtz, Paris.
Mabberley, D.J. 2008: Mabberley's plant book, a portable dictionary of plants, their classification and uses. Edition 3. Cambridge University Press.