Przewiercień okrągłolistny (Bupleurum rotundifolium L.) – An annual plant from the Apiaceae family. Occurs in cereals and fallow lands, only on the southern lowlands. The stem reaches a length of 15-45 cm. The top of the plant is branched and has greenish, egg-shaped leaves. The flowers are hermaphrodite (have both male and female organs) and are pollinated by insects. It blooms from June to July, and the seeds mature from July to August. Prefers sunny positions. The leaves are suitable for consumption – raw or cooked. Critically endangered species.

Curiosity: It was found in early medieval fossil record in Krakow.