Thlaspi L.

AL-Shehbaz, Ihsan A. & Barriera, Gabrielle, 2019, Typification of Edmond Boissier’s Cruciferae (Brassicaceae) names enumerated in Flora Orientalis, Boissiera 72, pp. 1-193 : 132-133

Thlaspi L. , Sp. Pl.: 645. 1753.

Tribe: Thlaspideae DC.

Notes. – A genus of three Eurasian species, and the generic type, Thlaspi arvense L., is a cosmopolitan weed and cultivated plant.

As recognized by CANDOLLE (1821 a, 1821b), BOISSIER (1867a), and subsequent authors prior to 1973, Thlaspi was so broadly delimited to include over 100 species. MEYER (1973, 1979) retained only six species in the genus and transferred the remaining taxa into a dozen segregates based primarily on seed-coat anatomy.

However, subsequent authors (e.g., GREUTER et al., 1986; APPEL & AL-SHEHBAZ, 2003) retained the genus in the broad sense, whereas others (e.g., AL-SHEHBAZ, 2012, 2014) relied on the available molecular data and placed all except six species in Noccaea of the tribe Coluteocarpeae . The latter genus also currently encompasses almost all taxa described in Iberidella by BOISSIER (1841b).

As recently delimited, ESMAILBEGI et al. (2018) recognized only four species in Thlaspi , of which T. kochianum F.K. Mey. was subsequently reduced by GERMAN (2018) to the following species.