Scientific Description:

Annual, biennial or perennial herbs. Leaves alternate, linear to narrowly elliptic, entire. Inflorescence a spike, raceme or panicle. Flowers hermaphrodite, ± sessile, usually subtended by 1 bract and 2 bracteoles. Perianth uniseriate, 4−5-lobed. Ovary inferior. Style simple. Stigma capitate. Fruit a 1-seeded nut crowned by persistent perianth.



Miller AG (1982). Thesium L., In: Davis PH (ed.), Flora of Turkey and the East Aegean Islands, Edinburgh University Press, Edinburgh, 7: 536.

Public Description:

Thesium, known as “tezgüvelek” in Turkish, is distibuted in Africa, Asia and South America. It consists of parasitic or semi-parasitic annual or perennial herbaceous plants or subshrubs. There are approximately 305 species in the world and 16 species (16 taxa) in Türkiye.



Anonymous 1 (2016),Accessed date: 06.08.2016.

Anonymous 2 (2016) /,Accessed date: 06.08.2016

Kandemir A (2012) Thesium L., 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. 840.

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