Thlaspi
Thlaspi, or pennycress, is a genus of herbs of temperate regions of the Eurasian continent. They occur in Central and South Europe, South-West Asia and two species are endemic to China. The Thlaspi has been proven to be a hyperaccumulator of heavy metals such as zinc and cadmium and therefore may be used in phytoremediation initiatives.
Species
Nine species are accepted.Thlaspi armenum Thlaspi arvense – field penny-cressThlaspi brevistylum Thlaspi ceratocarpon Thlaspi huetii Thlaspi inhumile Thlaspi kochianum Thlaspi roseolum- ''Thlaspi syriacum''
Formerly placed here
Mummenhoffia alliacea – roadside penny-cressNoccaea arctica – arctic penny-cressNoccaea cypria – Cyprus penny-cressNoccaea fendleri – Fendler's penny-cress- *Noccaea fendleri [subsp. californica|Noccaea fendleri subsp. californica] – Kneeland Prairie penny-cress
- *Noccaea fendleri subsp. idahoense – Idaho penny-cressNoccaea jankae – Slovak penny-cressNoccaea montana – alpine penny-cressNoccaea parviflora – meadow penny-cressNoccaea perfoliata – Cotswold penny-cressNoccaea praecox – early penny-cressNoccaea rotundifolia – round-leaved penny-cress