Sisymbrium loeseliiL. Tall Hedge-mustard

Sisymbrium loeseliiL. - Tall Hedge-mustard

Scientific Description:

Annual, biennial or perennial, 20−100 cm, with an indumentum of long down-wardly directed white hairs, or glabrous. Basal leaves not rosette-forming, lyrate pinnatipartite with a large hastate or triangular terminal lobe. Cauline leaves with hastate-lanceolate terminal lobe and 2−3 pairs of lateral lobes. Petals 5−7 × 2.5−3.5 mm, bright yellow; blade broad-obovate with a long narrow claw. Fruiting pedicels 6−12 mm, erect-spreading. Siliquae 10−35(−46) × c. 1 mm, straight or curved; valves thin-walled, thinly 3-nerved; style c. 0.5 mm; stigma deeply bilobed. Seeds slightly papillose. Radicle incumbent or oblique.

 

Flowering time: March−June.

Habitat: Rocky slopes, roadside, near cultivation, s.l.−1800 m.

 

Reference:

Hedge IC (1965). Sisymbrium loeselii L., In: Davis PH (ed.), Flora of Turkey and the East Aegean Islands, Edinburgh University Press, Edinburgh, 1: 485.

Public Description:

Sisymbrium loeselii, known as “small tumbleweed mustard”, “tall hedge-mustard”, and “false London rocket”, is native to Eurasia. It is an annual, biennial, or perennial plant with bright yellow flowers, and grows up to 100 cm in length. It blooms between March and June and is found in rocky slopes, roadsides and near cultivation. This plant produces chemicals to inhibit the germination of seeds of other species growing around (allelopathic).

 

References:

Anonymous 1 (2015). https://en.wikipedia.org/wiki/Sisymbrium_loeselii, Accessed date: 29.12.2015.

Anonymous 2 (2015). https://gobotany.newenglandwild.org/species/sisymbrium/loeselii/, Accessed date: 29.12.2015.

Mutlu B (2012). Sisybrium 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. 295−296.