Casually mistaken for : Creeping Buttercups (Ranunculus repens) but they have five petals.
Hybridizes with :
- Great Yellow-Cress (Rorippa amphibia) to produce
Hybrid Yellow-cress (Rorippa × anceps ) The most body of the hybrids, being found in just about 20 hectads. Unlike Creeping Yellow-cress it has fewer lobes on the upper leaves and which areacutely-lobed. This hybrid is fertile and variable to it back-crossing with either of its parents.
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Austrian Yellow-cress (Rorippa austriaca) to produce Rorippa × amoracioides which has only ever been spotted in only 10 hectads in the last 15 years (as of 2015). Unlike Creeping Yellow-cress it has fewer lobes on the leaves and which are acutely lobed.
- Marsh Yellow-Cress (Rorippa paluatris) to produce an un-named hybrid that is not in the books, but which appears on the BSBI map data.
There are other small differences too between these hybrids.
No relation to : Yellow-wort (Blackstonia perfoliata) [a plant with similar name belonging to the Gentianaceae (Gentian family)].
A native of riverbanks, water-courses, lakes, margins of ponds, damp bare ground and even brackish swamps. Becomes a noxious weed on arable land, docksides, waste ground and gardens. It is highly variable in leaf shape, fruit shape and form or jizz.
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