ELECTRONIC	e x t e n s i o n dot o r e g o n s t a t e dot e   d   u   s l a s h   m   g   s l a s h   b o t a n y   s l a s h   s t e m s   s i x dot h t m l w i l s o n	extension.oregonstate.edu/mg/botany/stems6.htmlwilson	1