Melampyrum nemorosum is an herbaceous flowering plant in the family Orobanchaceae. It is native to Europe. In Sweden it is called natt och dag. (Night and Day) In Russia it is called Ivan-da-Marya. (Ivan and Maria) a Christianisation of the traditional Slavic Kupalo-da-Mavka (Kupalo-and-Mavka).
This is an annual plant. The new leaves are blue, turning green as they mature. They are usually toothed at the bases.
This plant is a host to the fungus Cronartium flaccidum.
Sláðu inn einkenni eða sjúkdóm og lestu um jurtir sem gætu hjálpað, sláðu jurt og sjáðu sjúkdóma og einkenni sem hún er notuð við.
* Allar upplýsingar eru byggðar á birtum vísindarannsóknum