Lactuca lahulensis Mamgain & Rao in Bull. Bot. Surv. Ind. 27(1-4): 120-122. 1985.

Herbs, perennial; stems 50 - 80 cm high, erect, glabrous. Leaves 4 - 7 x 3 - 7 cm; upper middle leaves broadly cordate or deltoid; finely membranous with long and broadly winged petioles, auricled; uppermost leaves ovate or lanceolate. Inflorescence terminal panicle. Heads on subpaniculate branches; 1.4 - 1.6 x 2.5 - 3.0 cm peduncle small, slender. Outer involucral bracts ovate or linear-lanceolate; 2.0 - 2.5 x 0.5 - 1.0 mm; inner narrowly linear-lanceolate, 12 - 12.5 x 1.0 - 1.5 mm. Ligules white or purplish. Achenes subcylindric, yellowish brown, 7 - 7.5 mm long, 8 - 9 ribbed, downy. Pappus pale white, 5 mm long.

Fl. & Fr. Aug.- Sept.

Distrib. India: W. Himalayas, on exposed, shady, north facing slopes, 3000-4000 m. Himachal Pradesh.