Anthoxanthum

Anthoxanthum, the "vernal grasses", is a large genus of true grass with a wide distribution. "A. odoratum" is a common species of acidic grassland and bogs in northern Europe.
The genus "Hierochloe" is included in "Anthoxanthum" by some. "Hierochloe" is a genus or subgenus known generally as "sweetgrass". These are perennial rhizomatous grasses found in temperate regions in the Northern Hemisphere. These erect green grasses are known for their sweet scent. They bear panicle inflorescences with rounded grass grain fruits.