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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Lactuca

3. Lactuca dolichophylla Kitamura in H. Hara, Fl. E. Himalaya. 341. 1966.

长叶莴苣 chang ye wo ju

Mulgedium sagittatum Royle, Ill. Bot. Himal. Mts. 252, t. 61, f. 2. 1835; Lactuca handeliana S. Y. Hu; L. longifolia Candolle (1838), not Michaux (1803); L. wallichiana Tuisl, nom. illeg. superfl.

Herbs ca. 1 m tall, annual or biennial. Stem solitary, erect, paniculate apically, glabrous. Lower stem leaves linear to linear-lanceolate, undivided or pinnately lobed, base sagittately clasping stem, apex acuminate; lobes when present linear, apex acute. Upper stem leaves undivided, smaller, otherwise similar to lower leaves. Synflorescence paniculiform, with numerous capitula. Capitula with 12-20 florets; peduncle wiry. Involucre narrowly cylindric and 9-10 mm at anthesis, ovoid and to 1.6 × 0.8 cm in fruit. Phyllaries apically purplish red, abaxially glabrous, apex acute; outer phyllaries triangular-ovate to linear-lanceolate, approaching inner phyllaries to 3/4 their length; inner phyllaries ca. 5. Florets blue. Achene body dark brown, narrowly ellipsoid to obcolumnar, 4.5-5 mm, compressed, with 3-5 ribs on either side; beak greenish, filiform, 2.5-3 mm. Pappus 6-7 mm. Fl. and fr. Sep. 2n = 16.

Thickets; ca. 3200 m. Xizang, Yunnan [Afghanistan, Bhutan, India, Kashmir, Myanmar, Nepal, Pakistan].


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