Inula nervosa var. purpurascens Hook.f., Fl. Brit.

S., Shekhar, A. K., Pandey & Anderberg, A. A., 2020, The genus Duhaldea (Asteraceae) in India, Rheedea 30 (2), pp. 257-269 : 265-266

Inula nervosa var. purpurascens Hook.f., Fl. Brit. India 3: 293. 1881. Grierson & Long, Fl. Bhutan 2(3): 1496. t. 124b. 2001. Duhaldea nervosa var. purpurascens (Hook.f.) Karthik. & Moorthy, Fl. Pl. India 226. 2009. Type: INDIA, Sikkim, Khasia mts., s.d., Clarke s.n. (not seen) Fig. 5

Perennial, pubescent–hirsute or villous, glandular, erect, herbs, 30–90 cm tall. Stems flexuous, simple or branched, young parts densely hairy. Leaves sessile to sub-sessile, elliptic or ellipticlanceolate, 5–13 × 1–4 cm, cuneate at base, margins distantly serrate, membranous, scaberulous or scabrid above, midrib prominent, nerves subparallel with margins. Heads white with a yellow centre, solitary or corymbose, 1–1.5 cm in diam., long peduncled. Involucral bracts 4–9 mm long, 5-seriate, oblong to oblong-lanceolate, herbaceous to membranous, erect or recurved, dark brown, dense sericeous and pilose, multicellular hairs, outer phyllaries with very prominent mid vein and nerves. Ray florets radiate, white, 11–12 mm long, 3-lobed; lobes c. 7 × 2 mm. Disc florets yellow, 5-toothed, campanulate. C y p s e l a e n a r r o w l y o b o v a t e - oblong, 1–2 × 0.25–0.5 mm, dark brown, pubescent, 8–10-ribbed. Pappus uniseriate, bristles 22–25, 4–5 mm long, reddish brown.

Flowering & fruiting: Flowering and fruiting from August to October.

Habitat: Common along roadsides and often in forests up to 1500–2600 m elevation.

Distribution: Bhutan, China, India, Myanmar, Nepal, Thailand and Vietnam.

Specimens examined: INDIA, Arunachal Pradesh, West Kameng district, Selari forest , 15.09.1964, J . Joseph 40008 ( CAL); s.loc., 1.10.1926, V . Narayanaswami 236844 ( CAL) . Manipur, Ukhrul district, Sirohee , 19.09.1948, S . K . Mukherjee 3509 ( CAL) . Meghalaya, East Khasi Hills district, Cherra road, 17.10.1867, Wallich 6345 ( CAL); Khasi , s.d., C . B . Clarke 236863 ( CAL); Maophlong, 18.10.1872, Wallich 18590 ( CAL) . Nagaland, Naga Hills district, Naga Hills , 9.11.1885, C . B . Clarke 41831 ( CAL) . Uttarakhand, Chamoli district, Tapowan area , 09.1980, B . D. Naithani 70946 ( BSD); on the way to Sital, 09.1993, Bipin Balodi 77121, 77178, 77782 ( BSD). Dehradun district , Near Mussoorie , 1869, G . King 236850 ( CAL); Ibid. , 1870, G . King 1026 ( CAL); Mussoorie, 7.10.1904, W . Gallan s.n. ( DD); Ibid. , 1919, K . Biswas 236845 ( CAL); Ibid. , 09.1927, B . L . Gupta 46107 ( DD); on the way to Mussoorie, 04.10.1960, Hari Om Saxena 1335 ( DD); Jaunsar, 10.1894, J . S . Gamble 25198 ( DD, CAL); Chakrata, 06.1898, J . S . Gamble 27452 ( DD); Sahasradhara, Dehra Dun, 8.09.1964, S . K . Malhotra 34842 ( BSD); Bindal, Dehra Dun, 01.09.1982, C . R . Babu 40308 ( BSD); Kempty fall, Mussoorie ; 26.05.2010, S . Shekhar 1073 ( DUH); Nainital district, Nanital , 10.10.1828, A . E . Oswaston 1406 ( DD); s.loc., 11.02.1853, Duthie 4119 ( DD); Kali valley , 16.09.1984, J . F . Duthie 3112 ( DD); Pithoragarh district, near Pithoragarh , 16.08.1886, J . F . Duthie 5688 ( DD); Mandoli, Garhwal, 27.09.1963, U . C . Bhattacharyya 30832 ( BSD); Tehri Garhwal district, Near Ringalgarh , 25.09.1954, K . C . Sahni 21445 ( DD); Tehri Garhwal, 10.1881, s.coll. 1748 ( DD); Rudraprayag district , on way to Kedarnath, Garhwal , 09.1958, M . A . Rau 8595 ( BSD) .

Figures

Fig. 5. Duhaldea nervosa (Wall. ex DC.) Anderberg: a. Habit; b-b4. Phyllaries (from outer to inner);c. Disc floret; d & d1.Anthers;e & e1. Style & stigma (a from Joseph 40008 [CAL], b, c, d & e from S. Shekhar 1082 [DUH]; drawn by S. Shekhar; scale bars: a 1 cm; e-e1 1 mm).