Ilex sapiiformis, also known as the Pernambuco holly, is a critically endangered tree in the family Aquifoliaceae endemic to the state of Pernambuco in Brazil.
The tree can grow up to 12m (39feet) tall and is diecious. The flowers are small and white.
The species has been known only from a small patch of forest next to a sugarcane plantation in the Igarassu municipality of Pernambuco, close to the Greater Recife metropolitan area.
After the type specimen was described in 1836, no other individuals were found and the species was considered possibly extinct for nearly 200 years until 4 plants (2 males and 2 females) were found in March 2023. Since then, one of the trees has died, leaving only 3 known individuals, rendering the plant narrowly close to extinction unless captive propagation or habitat preservation is done.[1]