This member of the Scrophulariaceae family was given this name by Carl von Linné in 1753. It is found in Europe and Asia, growing in a rich soil with quite some water and some sun. The caudex can grow to four centimetres in diameter, the entire plant from 30 to 100 centimetres in height. The flowers are greenish outside and brownish red inside.
The genera name from Latin: scrophulae; a gland disease at pigs; skrofa, with this plant could cure. The species name from Latin; nodosa; 'knotty, joint' for the roots. Another root from Wilde-planten.nl. The inflorescence by Dr. H.F Oakeley, Garden.rcplondon.ac.uk.
