| Melampyrum nemorosum | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Lamiales |
| Family: | Orobanchaceae |
| Genus: | Melampyrum |
| Species: | M. nemorosum |
| Binomial name | |
| Melampyrum nemorosum |
|
Melampyrum nemorosum is an herbaceous flowering plant of the genus Melampyrum in the family Orobanchaceae.
It is native to Europe. In Sweden, it is called "Natt och Dag" meaning 'Night and Day', due to its combination of bright yellow and dark blue colours. They flower between June to July, and are annual plants. The newest leaves are blue and turn green as they mature. They are usually toothed towards the base of the leaves.