Common name: One-rowed Watercress
Rorippa microphylla (Boenn. ex Rchb.) Hyl. APNI*
Synonyms: Nasturtium microphyllum Boenn. ex Rchb. APNI*
Description: Decumbent perennial, stems to 40 cm long.
Leaves pinnate, mostly to 10 cm long, with 1–9 pairs of pinnae; pinnae ± circular, margins crenate to entire.
Sepals 1.5–3 mm long. Petals 4–5 mm long, white. Siliqua curved, 15–30 mm long, 1–2 mm wide, ascending; seeds in 1 row per loculus; pedicel spreading to reflexed, 10–14 mm long.
Distribution and occurrence: in mud or shallow water; widespread. Native of Europe, W Asia.
NSW subdivisions: *CC, *NT, *CT, *ST, *SWS
Other Australian states: *Vic. *Tas. *S.A.
Nasturtium microphyllum Boenn. ex Rchb. is sometimes treated as the accepted name for this taxon, following I. Al-Shehbaz & R.A. Price, Novon, 8: 124-126 (1998).
Text by L. Retter & G.J. Harden, Flora of New South Wales Vol. 1: 478-480 (1990)
Taxon concept: Australian Plant Census (accessed May 2017)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.