The Brazilian bachelor botton, Centrathetum punctatum Cass. (Asteraceae), is a fragrant bushy perennial plant and attains up to 45–60 cm . It is well-branched with refreshing resinous pineapple-scented foliage. The purple flowers seem to close up at night. A related species, C. anthelminticum, has been reported to possess antimicrobial and antifilarial activities. C. punctatum of Brazilian origin has been investigated for its essential oil constituents