Kalmar "eriophyllum" kalma ce ta ilimin halitta kuma tana nufin jinsin tsire-tsire masu fure a cikin dangin sunflower, Asteraceae. Tsire-tsire Eriophyllum sun fito ne daga yammacin Arewacin Amurka kuma ana san su da ulun sunflower, saboda ganyaye masu gashi ko ulu da mai tushe. Sunan "eriophyllum" ya fito ne daga kalmomin Helenanci "erion," ma'anar ulu, da "phyllon," ma'ana ganye, wanda ke kwatanta bayyanar tsire-tsire.