▁can ▁be ▁pro str ate ▁to ▁asc ending . ▁Some ▁species ▁have ▁under ground ▁st ems ▁in ▁the ▁form ▁of ▁ca ud ices ▁or ▁rh iz om es . ▁These ▁can ▁be ▁f les hy ▁or ▁wo ody ▁depending ▁on ▁the ▁species . ▁ ▁Le aves ▁ ▁The ▁leaves ▁and ▁the ▁st ems ▁very ▁often ▁contain ▁secret ory ▁can als ▁with ▁res in ▁or ▁late x ▁( part icular ly ▁common ▁among ▁the ▁C ich orio ide ae ). ▁The ▁leaves ▁can ▁be ▁alternate , ▁opposite , ▁or ▁wh or led . ▁They ▁may ▁be ▁simple , ▁but ▁are ▁often ▁deeply ▁lo bed ▁or ▁otherwise ▁inc ised , ▁often ▁condu p licate ▁or ▁revol ute . ▁The ▁marg ins ▁can ▁be ▁entire ▁or ▁lo bed ▁or ▁to oth ed . ▁ ▁Flow ers ▁ ▁Flor al ▁heads ▁▁ ▁In ▁plants ▁of ▁the ▁family ▁A ster aceae , ▁what ▁appears ▁to ▁be ▁a ▁single ▁flower ▁is ▁actually ▁a ▁cluster ▁of ▁much ▁smaller ▁flowers . ▁The ▁overall ▁appearance ▁of ▁the ▁cluster , ▁as ▁a ▁single ▁flower , ▁functions ▁in ▁attract ing ▁pol lin ators ▁in ▁the ▁same ▁way ▁as ▁the ▁structure ▁of ▁an ▁individual ▁flower ▁in ▁some ▁other ▁plant ▁families . ▁The ▁older ▁family ▁name , ▁Compos ita e , ▁comes ▁from ▁the ▁fact ▁that ▁what ▁appears ▁to ▁be ▁a ▁single ▁flower ▁is ▁actually ▁a ▁composite ▁of ▁smaller ▁flowers . ▁The ▁" pet als " ▁or ▁" sun ray s " ▁in ▁a ▁sun flow er ▁head ▁are ▁actually ▁individual ▁st rap - sh aped