Lactuca runcinata
DC. in Wight, Contrib. Bot. Ind. 26. 1834. Lactuca heyneana
DC., Prodr. 7: 140. 1838; Hook.f., Fl. Brit. India 3: 403. 1881.
Mar.: Undirachakan.
Herbs, annual or biennial; stems 50 - 80 cm high, erect, glabrous, cylindric, hollow at base, much branched. Leaves mostly radical, runcinate-pinnatifid, finely spinulose or ciliate-toothed, 6 - 21 x 1.5 - 6 cm, sessile. Inflorescence spicate or racemose, on long flowering branches. Heads solitary or fascicled, cylindric, 0.9 - 1 x 0.2 - 0.3 cm, erect; peduncle very small, slender, with one or two bracts. Outer involucral bracts ovate, 1.5 - 2.5 x 0.5 - 1.0 mm, minute, acute; inner equal, linear-oblong, 9 - 11 x 1 - 1.5 mm, subobtuse. Corolla pinkish-white. Achenes blackish, brown, 3 - 3.5 mm long, compressed, prominently ribbed, muriculate, rugose, tapering into a short beak. Pappus silvery white, 5 - 6.5 mm, persistent.
Fl. & Fr. May - June.
Distrib. India: on rocky hill slopes, 400-1100 m. Jammu & Kashmir, Rajasthan, Maharashtra and Tamil Nadu.
Sri Lanka, Central America, Europe, S. Africa and S.E. Asia.
Herbs, annual or biennial; stems 50 - 80 cm high, erect, glabrous, cylindric, hollow at base, much branched. Leaves mostly radical, runcinate-pinnatifid, finely spinulose or ciliate-toothed, 6 - 21 x 1.5 - 6 cm, sessile. Inflorescence spicate or racemose, on long flowering branches. Heads solitary or fascicled, cylindric, 0.9 - 1 x 0.2 - 0.3 cm, erect; peduncle very small, slender, with one or two bracts. Outer involucral bracts ovate, 1.5 - 2.5 x 0.5 - 1.0 mm, minute, acute; inner equal, linear-oblong, 9 - 11 x 1 - 1.5 mm, subobtuse. Corolla pinkish-white. Achenes blackish, brown, 3 - 3.5 mm long, compressed, prominently ribbed, muriculate, rugose, tapering into a short beak. Pappus silvery white, 5 - 6.5 mm, persistent.
Fl. & Fr. May - June.
Distrib. India: on rocky hill slopes, 400-1100 m. Jammu & Kashmir, Rajasthan, Maharashtra and Tamil Nadu.
Sri Lanka, Central America, Europe, S. Africa and S.E. Asia.
