pin-eyed
/ˈpɪnʌɪd/Botany (originally Horticulture )
adjective
Of a heterostylous plant (especially one of the genus Primula) or its flowers: having a long style so that the stigma is visible at the mouth of the corolla tube, with the stamens inserted lower down. Opposed to thrum-eyed.
Origin
Early 19th century; earliest use found in George Crabbe (1754–1832), poet and Church of England clergyman. From pin + eyed.