tickseed vs tick-weed

tickseed and tick-weed both are nouns.

Word	Noun	Adjective	Verb	Adverb
tickseed	Yes	No	No	No
tick-weed	Yes	No	No	No

As nouns, tickseed and tick-weed are synonyms defined as:

tickseed and tick-weed: any of numerous plants of the genus Coreopsis having a profusion of showy usually yellow daisylike flowers over long periods; North and South America

Other synonyms of tickseed include coreopsis, tickweed.

tickseed (noun)	tick-weed (noun)
any of numerous plants of the genus Coreopsis having a profusion of showy usually yellow daisylike flowers over long periods; North and South America	any of numerous plants of the genus Coreopsis having a profusion of showy usually yellow daisylike flowers over long periods; North and South America