Botany online 1996-2004. No further update, only historical document of botanical science!
(a North American Composite)
1. to 4. As in the development of the glandular hair of Origanum dictamnus begins the development with a pericline division of the initials that is followed by anticline divisions. 5. to 8. Developmental states of the glandular head; 9,10. Nearly completely developed glandular hair (E. E. KARRFALT, G. L. KREITNER, 1980).