Conringia orientalis
English: Hare's ear mustard.
Region: Eurasia, introduced and noxious weed in North America.
Botany: annual herb; stem unbranched, erect ± 50 centimetres high; leaves thick, waxy, oval, ± 8 cm, clasping the stem; flower enclosed in pointed sepals, yellow, clawed petals; fruit a beaded silique; toxic to livestock.