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Published In: Taxon 17: 239. 1968. (Taxon) Name publication detail

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: I.C. Hedge
Flower/Fruit: Fl. Per.: March-October.
Type: Type: Deyra Dhoon [Dehra Dun], Choor, Royle.
Distribution: Distribution: SE Arabia (Oman), Afghanistan, Pakistan, Himalayas to Nepal, SW China.
Comment/Acknowledgements: Although there is appreciable variation in leaf size and in the type and quantity of indumentum, especially in the inflorescence region, this is not a particularly polymorphic species. According to R. R. Stewart (l.c.), it is one of the commonest shrubs in the west Himalayas and a good honey source; it is usually a plant of dry rocky slopes, where it can be a dominant species in the community.
Illustration: Isodon rugosus (Wall. ex Benth.) Codd (Illustration)
Map Location: A-8 Gilgit: Nagar, Muqarrab Shah & Jamshed 219 (E); Nagar village area, 2300 m, O. Polunin 6439 (BM, E); B-6 Chitral: NE of Drosh, Shishi Gol, 2130 m, Stainton 3157 (BM, E); Broz, 1550 m, Harriss 16538 (E, K); Birir valley, Qaiser & Ghafoor 6661 (KUH); 12 km Drosh to Chitral, Sultanul Abedin 7963 (KUH); Swat: Malakand div., Kalam, Kazmi 5290 (KUH); Dir, Farrukh Hussain 6712 (RAW); B-7 Swat: Madyan to Kalam, 1700 m, Rechinger 19373 (W); Madyan, Kazmi 9115 (KUH); Dir, F. Hussain 6712 (KUH); Kaghan, Sultanul Abedin & Qaiser 8086 (KUH); Dir to Drosh, Sultanul Abedin 7877 (KUH); 4 km Shangla to Saidu, Qaiser & Ghafoor 4604 (KUH); Gilgit: Chalt, 1830 m, O. Polunin 6462 (BM, E); Gopis, Kazmi 5684 (KUH); Kargah, Ghafoor & Butt 352 (KUH); Hazara: Kaghan valley, Kazmi 3654 (KUH); Nathia Gali, McVean s.n. (E); Shogran, Sultanul Abedin & Qaiser 8824 (KUH); Thandiani, 2440 m, Y. Nasir 6124 (RAW); Abbottabad: Nathia Gali to Abbottabad, Farooqi & Qaiser 3433 (KUH); Abbottabad, Qazilbash, 2028, 2223 (KUH); Muzaffarabad: Chinasi to Muzaffarabad, Farooqi & Qaiser 3035 (KUH); Chhunnian Leepa valley, Qaiser et al. 7690 (KUH); B-8 Swat: Shangla hills, 1520 m; Qaiser & Ghafoor 4749 (KUH); Kashmir: Nara Naq, Wangat Nullah, 2280 m, O. Polunin 763 (BM, E); Kangan, Sind valley, 1670 m, Ludlow & Sherriff 7898 (BM, E); Gulmarg, O. Polunin 295 (BM, E); near Srinagar, Schlagintweit 4480 (E); Baltistan: Skardu, 2450 m, Y. Nasir 9808 (RAW); C-5 South Waziristan: Razmak, 1700 m, Lowndes 13 (E); Makeen, Marwat s.n. (KUH); C-6 Kohat: Tal, Kazmi 3867 (KUH); Kohat, Kazmi 3295 (KUH); Kurram: Parachinar, 2560 m, Siddiqi & Y. Nasir 4315 (RAW); Shalizan, N. Ali s.n (KUH), Aitchison 806 (K); C-7 Campbellpur: Khairi Murat, R.R. Stewart & Nasir 27909 (KUH, RAW); Hazara: Maqsud, 900 m, E. & Y. Nasir 8947 (RAW); Rawalpindi: Murree hills, Qureshi s.n. 4(KUH); Kashmir: Bagh, 1060 m, Y. Nasir 8528 (RAW); Nakial near Kotli, 1370 m, R.R. Stewart 27284 (RAW); D-4 Quetta: Gumbaz to Barkhan, 1050 m, Lamond 1367 (E), Rechinger 29672 (W); Ziarat, 2440 m, Zaffar Ali & Y. Nasir 5832 (RAW), 700 m, E. & Y. Nasir 9428 (RAW), Lace 4023 (E); Murdar range, Sinclair 2737 (E); Quetta to Sibi, Farooqi & Qaiser 2269 (KUH); Khandai, Qaiser 118 (KUH); D-6 Dera Ghazi Khan: Fort Munro, Sulaiman range, 1600 m, Lamond 1391 (E).


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Shrub, aromatic, much branched, 30-160 cm. Stems erect with rather slender quadrangular branches, leafy, with an indumentum of small stellate dendroid hairs. Leaves broad-ovate, variable in size, 1.5-7 (-9) x 1-3 (-4.5) cm, rugose, usually green or dark above with few branched hairs and white below with a very dense indumentum of small stellate-dendroid hairs, crenate or crenulate; petiole up to 2.5 cms, usually much less. Cymes on slender lateral branches, lax, forming often leafy racemes. Pedicels slender up to 6 mm, erect or spreading. Calyx in flower 2-3.5 mm, indistinctly bilabiate, obliquely campanulate, with simple and/or branched hairs of varying length and density and usually numerous oil globules; teeth short, subequal, broad triangular; calyx in fruit up to 6 mm, curved, spreading. Corolla white tinged or spotted pink or violet, c. 6 mm long; tube short included in calyx, somewhat gibbous at base; lips diverging, lower longer than upper. Nutlets pale brown to dark brown, oblong, c. 1.5 x 1 mm, mucilaginous on wetting.
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