11. A phenolic compound called habenariol can be found in " H . repens ". 12. The species was first described by Carl Linnaeus in 1763 as " Centaurea repens ". 13. Duranta repens , or golden dewdrop, is extremely low-care in a well-draining soil. 14. "S . repens " extract has been promoted as useful for people with prostate cancer. 15. "Goodyera repens " is found in isolated spots in the forests and bogs of Europe. 16. Fire also helps to prevent the encroachment of Natal grass ( " Melinis repens " ). 17. The fungus, Aspergillus repens , predigests the flakes of human skin into a form which the mites can eat. 18. _The herbal remedy saw palmetto ( Seronoa repens ) for bladder problems caused by enlargement of the prostate gland. 19. The saw palmetto's scientific name is Serenoa repens , a gently poetic description of something that restores tranquillity. 20. The worst threat to the species is the invasion of Natal grass ( " Melinis repens " ).