Polystichum lonchitis shine sunan kimiyya na nau'in fern wanda aka fi sani da "Holly Fern" ko "Garkuwa Fern". Memba ne na halittar Polystichum kuma ana siffanta shi da koren kore, mai sheki, duhu kore, wanda ya kai tsayin 60 cm kuma faɗin 20 cm. Asalinsa ne a Arewacin Hemisphere, inda za'a iya samunsa yana girma a cikin ɗanɗano, wuraren zama masu inuwa kamar ciyayi, gangaren dutse, da duwatsu. Sunan "lonchitis" ya samo asali ne daga kalmar Helenanci "lonche", wanda ke nufin mashi ko mashi, yana nufin takardun fern masu siffar mashi.