Rorippa palustris · pelkinis čeriukas

• marsh yellow cress, bog yellowcress
• Gewöhnliche Sumpfkresse
• purva paķērsa
• rzepicha błotna

• en.wikipedia.org/wiki/Rorippa_palustris
• luontoportti.com/en/t/132/marsh-yellowcress

Rorippa palustris is native to, or naturalized across much of the globe. It is an adaptable plant which grows in many types of damp, wet, and aquatic habitat. It may be an annual, biennial, or perennial plant, and is variable in appearance as well.

It produces an erect stem, sometimes with branches, attaining a maximum height of just over one meter. The leaves are up to 30 centimeters long and have toothed to deeply lobed edges. The inflorescence is a raceme of mustardlike flowers with spoon-shaped yellow petals each a few millimeters in length. The fruit is a dehiscent and smoothly valved silicle, up to a centimeter long, and containing anywhere from 20 to 90 minute seeds. 6132