Citation: Scop., Fl. Carniolica 520 (1760).

Derivation: Derivation uncertain.

Synonymy: Not Applicable

Common name: Watercresses.

Description:
Annual, biennial or perennial herbs, some aquatic.

Sepals dimorphic; petals clawed; stamens 4 or 6; median nectariferous glands present.

Fruit a siliqua, dehiscent; valves convex, with the mid-vein faint or not visible; seeds in 1 or 2 rows per locule; radicle accumbent.

Distribution:  70 species with a cosmopolitan distribution; 3 established species and 4 endemic species in Australia.

Biology: No text

Key to Species:

1. Plants stoloniferous, semi-aquatic
2. Seeds in 1 row per 1ocule; testa with c. 100 depressions per face R. microphylla 3
2. Seeds in 2 rows per locule; testa with c. 25-50 depressions per face	R. nasturtium-aquaticum 4.
1. Plants taprooted, terrestrial
3. Petals yellow; stamens 6; siliqua inflated, 2-3 mm wide	R. palustris 5.
3. Petals white or pink; stamens 4; siliqua elongate, to 2 mm wide
4. Seeds in 2 rows, rounded, to 0.75 mm long	R. eustylis 1.
4. Seeds in 1 row, marginate, 0.75 mm or more long	R. laciniata 2.

Author: Not yet available