noun
Quercus gilva; a species of oak
A species of evergreen oak native to Japan and East Asia. Botanical term; in everyday contexts, it may simply be referred to as a type of かし (oak).
イチイガシは暖かい地域に自生する常緑の高木です。
Quercus gilva is a tall evergreen tree that grows naturally in warm regions.
公園に植えられたイチイガシのどんぐりを拾った
I picked up acorns from a Quercus gilva planted in the park.
どんぐり means acorn in general. イチイガシ produces a particular type of acorn.
The name イチイガシ likely derives from 一位 (いちい, Japanese yew) + 樫 (かし, oak), possibly because the wood or leaves resemble those of the yew. The exact origin is uncertain.