Classification
Class
Magnoliopsida Brongn.
Order
Brassicales Bromhead
Family
Cruciferae
 Subordinate Taxa
 Nomenclature
Scientific Name:
Rorippa Scop., Fl. Carniol. 520 (1760)
Vernacular Name(s):
Yellow cress
 Description

Annual, biennial or perennial rhizomatous trailing or taprooted herbs. Hairs simple, or 0. Stems prostrate to erect, leafy. Lvs simple to pinnate; margins of lobes entire or crenate or dentate. Racemes ebracteate. Sepals erecto-patent, saccate or not. Petals yellow or white. Stamens 6, without appendages. Nectaries 6, 4 lateral and 2 median, variable in form and degree of fusion. Style very short; stigma capitate or slightly 2-lobed. Fr. a globose to ovoid silicle or oblong to linear silique, often curved, dehiscent; valves veinless or 1-veined at least below; beak 0. Seeds oblong or ovoid, winged or not winged, in 1–2 rows per locule.

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

 Biostatus
Indigenous (Non-endemic)
Number of species in New Zealand within Rorippa Scop.
CategoryNumber
Indigenous (Endemic)1
Indigenous (Non-endemic)2
Exotic: Fully Naturalised2
Total5
 Bibliography
Mabberley, D.J. 2008: Mabberley's plant book, a portable dictionary of plants, their classification and uses. Edition 3. Cambridge University Press.
Scopoli, J.A. 1760: Flora Carniolica. Joannis Thomae Trattner, Vienna.