Talk:Thlaspi

Thlaspi s.l. has became the dumping site for any Brassicaceae plant with angustiseptate fruits (flattened at a right angle to the septum), two or more seeds per locule, and simple trichomes or no indumentum (Al-Shehbaz, 2014). In a series of studies Meyer reduced Thlaspi s.l. into 10 segregates and retained just six species in his Thlaspi s.str.. Subsequent phylogenetic studies have shown that Meyer's broad approach was correct, but that his morphologically based segregates are not sound (Koch & Mummenhoff 2001) and summarised by Al-Shehbaz (2012, 2014) and Brassibase (2017). However Al-Shehbaz (2014) goes on to suggest that virtually all of Meyer's segregates be subsumed into an much expanded Noccaea (Coluteocarpeae). However, this approach has not yet found total acceptance in online databases, such as Tropicos or Euro+Med Plantbase. The taxon page over summarises the species circumscription for both sensu lato and sensu stricto. Note that the poorly studied Thlaspi watsonii P.H.Davis 1988 has recently been confirmed to be synonymous with Arabis watsonii Mey. 2006 (Özüdoğru & Fırat 2016). Andyboorman (talk) 21:05, 2 February 2017 (UTC)