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Published In: Species Plantarum 1: 180. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: YASIN J. NASIR
Flower/Fruit: Fl. Per.: April-May.
Type: Lectotype: Described from America. Hb. Linn. 245/1 (LINN).
Distribution: Distribution: Native to Mexico and northern S. America.
Comment/Acknowledgements: Widely cultivated in tropical and subtropical regions. The ‘tobacco plant’ is mainly cultivated in the N.W.F.P. regions of Pakistan on a commercial scale. Tobacco is both smoked and chewed; it contains the alkaloid nicotine, a stimulant, which is harmful to the nervous and respiratory system. Also used for insecticidal purposes. The species is sometimes found as an escape.
Map Location: Baltistan: B-8 near Bagicha, ± 8500', fls. pink, R. R. Stewart 20971A (RAW); Kashmir: C-7 Mirpur, Kazmi 506 (PES, RAW); C-7 Rawalpindi Dist.: Tret, on garbage heap, Kazmi 3108 (PES, RAW); Rawalpindi, April 1939, Shakuntla s.n. (RAW); Attock Dist.: Wah, 5.8.1936, Albert Masih s.n. (RAW).


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Plant up to 1 m tall, viscid-pubescent. Leaves cauline, 24-40 x 13-25 cm, oblong to broadly elliptic-ovate, cuneate or ± auricled, texture thin. Flowers pink, in axillary and terminal compact corymboid panicles. Calyx 10-12 mm long, oblong, persistent in fruit; lobes unequal. Corolla tube 3.5-4.6 cm long, glandular-hairy without; limb up to 15 cm broad, lobes acute to apiculate. Anthers 3 mm long, oblong; filaments ± 3.5 cm long. Capsule 20 mm long, oblong-ovoid. Seeds less than 1 mm long, angled, minutely ruminate, brown.
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