DESCURAINIAWebb & Berth. - TANSY-MUSTARD
Scientific Description:
Annual or biennial herbs (in Turkey) with 2-or 3-pinnatisect leaves (rarely simply pinnatisect) and an indumentum of short, irregularly branched, stellate hairs and a few simple hairs, occasionally with glandular hairs, rarely glabrous. Sepals notsaccate. Petals yellow or creamy. Filaments not dilated. Median honey gland present. Ovules many. Fruit an elongated latiseptate siliqua. Seeds uniseriate, mucilaginous. Closely allied to Sisymbrium L. but differing in the very finely pinnatisect leaves and the branched hairs. Most species in N. & S. America; a few in Europe & Asia.
Reference:
Hedge IC (1965). Descurainia Webb & Berth., In: Davis PH (ed.), Flora of Turkey and the East Aegean Islands, Edinburgh University Press, Edinburgh, 1: 486.
Public Description:
Descurainia, commonly known as “tansy-mustard”, is a genus of annual or biennial herbs, and is found in temperate regions on earth. There are approximately 46 species in the world and 2 species (4 taxa) in Türkiye. They have long erect stems and small yellow or creamy flowers. Many species are known as noxious weeds. Some species have toxic effects on livestock.
References:
Anonymous 1 (2015). https://en.wikipedia.org/wiki/Descurainia, Accessed date: 28.12.2015.
Anonymous 2 (2015). http://www.theplantlist.org/1.1/browse/A/Brassicaceae/Descurainia/, Accessed date: 28.12.2015.
Mutlu B (2012). Descurainia Webb & Berth., In: Güner, A., Aslan, S., Ekim, T., Vural, M. & Babaç, M.T. (eds.), Türkiye Bitkileri Listesi (Damarlı Bitkiler). Nezahat Gökyiğit Botanik Bahçesi ve Flora Araştırmaları Derneği Yayını. İstanbul, pp. 269.
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