"Hieracium venosum" kalma ce ta harshen Latin da ke nufin wani nau'in tsiro da aka fi sani da ciyawa ko rattlesnake hawkweed. Ita ce tsiron herbaceous na shekara-shekara wanda na dangin Asteraceae ne kuma asalinsa ne a Arewacin Amurka. Itacen yana da tsayin ganye mai siffa mai siffar lance tare da fitattun jijiyoyi kuma yana ɗauke da furanni rawaya ko orange-rawaya a cikin manyan gungu. Sunan gama-gari na "rattlesnake weed" ya samo asali ne daga imani cewa shuka zai iya magance cizon maciji.