Thesium arvenseHorv. Tezgüvelek (in Turkish)

Thesium arvenseHorv. - Tezgüvelek (in Turkish)

Scientific Description:

Perennial. Stems many, 15−25(−35) cm, ascending to erect, ± simple, arising from a capitate rootstock. Leaves linear to linear-oblong, scale-like below, (2−)5−40(−60) × 1−3 mm. Inflorescence a raceme, often branched below. Bracts l−4(−8) × as long as nut, bracteoles 2/3−2 × nut. Flowers white, perianth infundibular, 2−2.5 mm, lobes narrowly triangular, 0.75−1 mm. Fruit (3−)3.5−4 × 1.5−2 mm, nut ellipsoid, glabrous, longitudinally-nerved, persistent perianth 1/3−1/4 × as long as nut, pedicel slightly swollen, often red tinged.

Flowering time: April−August.

Habitat: Sand dunes, fields, rocky slopes, etc., s.l.−2200 m.

Reference:

Miller AG (1982). Thesium arvense Horvâtovszky, In: Davis PH (ed.), Flora of Turkey and the East Aegean Islands, Edinburgh University Press, Edinburgh, 7: 540.

Public Description:

Thesium arvense, commonly known as “tezgüvelek” in Turkish, grows naturally in the temperate zones of Eurasia, from the Balkans to Siberia and Central China. It is a perennial herb with white flowers, up to 35 cm in length. It blooms between April and August and is found in sand dunes, fields and rocky slopes.

References:

Anonymous 1 (2016) https://www.abinvasives.ca/factsheets/140610-fs-thesiumarvense.pdf?iframe=true&width=800&height=600 /,Accessed date: 11.09.2016.

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.