Tragus
Tragus racemosus
Tragus racemosus (L.) All.
Engl.: large carrot-seed grass, spike bur grass, stalked bur grass.
Bot. syn.: Cenchrus racemosus L., Lappago racemosa (L.) Honck.
A herbal distance course
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.