''Lactuca dissecta'', the split-leaf lettuce, is an Asian species of plant in the tribe

Cichorieae The Cichorieae (also called Lactuceae) are a tribe in the plant family Asteraceae that includes 93 genera, more than 1,600 sexually reproductive species and more than 7,000 apomictic species. They are found primarily in temperate regions of the E ...

within the family

Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae ...

. It is native to Central Asia, western China (

Xinjiang Xinjiang, SASM/GNC: ''Xinjang''; zh, c=, p=Xīnjiāng; formerly romanized as Sinkiang (, ), officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest ...

Tibet Tibet (; ''Böd''; ) is a region in East Asia, covering much of the Tibetan Plateau and spanning about . It is the traditional homeland of the Tibetan people. Also resident on the plateau are some other ethnic groups such as Monpa people, ...

), the Himalayas, and southwest Asia as far west as

Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...

.Flora of China, ''Lactuca dissecta'' D. Don, 1825. 裂叶莴苣 lie ye wo ju
/ref>Czerepanov, S. K. 1981. Sosudistye Rasteniia SSSR 509 pages. Nauka, Leningradskoe Otd-nie, Leningrad.Roohi Bano & M. Qaiser. 2010. A taxonomic revision of the genus ''Lactuca'' L. (Cichorieae - Asteraceae) from Pakistan and Kashmir. Pakistan Journal of Botany 43(5): 2259-2268
/ref> ''Lactuca dissecta is an annual herb, growing to 40 cm tall. Stems are solitary, erect, branching from the base, branches slender, hairless. Middle and lower part of the whole leaf is inverted-lance-shaped, deeply lobed or pinnately cut, 3–7 cm long, 1–3.5 cm wide, lateral lobes 3-6 pairs, diamond- or fan-shaped, round or toothed comb. Flowers are borne in clusters at the top and then leaves smaller, lanceolate or linear-lanceolate. All leaves are hairless, base stalkless, ear-shaped, arrow-shaped or semi-stem-clasping. Blue flower-heads are bore on top of the stem and branches arranged in loose corymbose inflorescence, each flower head containing ray flowers but no disc flowers. Achenes light brown, oblanceolate, long 2.3 mm, width of 1 mm. Pappus white, thin, hairy, 3 mm long.

References

External links

Photo of herbarium specimen at Missouri Botanical Garden
photos dissecta Flora of Asia Plants described in 1825 {{Cichorieae-stub