Published In:
Flore d'Auvergne ed. 2: 518. 1800. ( Fl. Auvergne) 
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(Last Modified On 6/2/2011)
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Acceptance
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Accepted
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(Last Modified On 6/3/2011)
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Synonym Text:
Polygonum hydropiper L., Sp. Pl. 361. 1753; Hook. f., Fl. Brit. Ind. 5: 39. 1886; excl. var. eglandulosa Hook.f.; Kitamura, Pl. W. Pak. & Afgh. 44. 1964; D.A.Webb & Chater in Tutin et al., Fl. Europ. 1:79. 1964; Coode & Cullen in P.H.Davis, Fl. Turk. 2: 274. 1966; Schiman-Czeika & Rech. f. in Rech. f., Fl. Iran. 56: 60. 1968; R.R.Stewart, Ann. Cat. Vasc. Pl. W. Pak. & Kashm. 1: 206. 1977; P. korrense Nakai in Bot. Mag. Tokyo 33: 6. 1919; Nakai in Mor. Enum. Pl. Cor. 132. 1922.
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Flower/Fruit:
Fl. Per.: April-September.
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Type:
Type: Described from Europe, Herb. Linn 510.9 (LINN).
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Habitat:
A fairly common and widespread species, grows in ditches, on banks and moist shady places from plains to 2000 m. Easily recognized by its red glandular punctate leaves and red glandular perianth and interrupted racemes. Nuts are variable. Trigonous and biconvex nuts are sometimes found within the same raceme.
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Distribution:
Distribution: Widely distributed in N. W. Africa, Temperate Asia, Pakistan, India, extending to far east up to Japan, N. America.
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Map Location:
A-6 Chitral, Hassan Din 240 (RAW); A-7 Gilgit: on wet places 4900 ft, R. R. Stewart 26262 (RAW, KUH); ibid, July, 1954, R. R. Stewart s.n. (RAW); Bisham: ± 15 miles from Commella on way to Bisham (Korrakorum Rd.), M. Qaiser & A. Ghafoor 5444 (KUH); B-7 Swat: Between Bahrein and Mingora, Saida Qureshi 35 (KUH); Bahrein, 4500 ft, R. R. Stewart & A. Rahman 25409 (BM); Between Jabba and Jahanabad, ± 5500 ft, M. Qaiser & A. Ghafoor 4794 (KUH); 8 miles from Shangla on way to Kalam, M. Qaiser & A. Ghafoor 4675 (KUH); 6.5 miles from Khawza Khela on way to Shangla, in maize field, Sultanul Abedin 8296 (KUH); Utror: along water land, Sultanul Abedin 8439 (KUH); Mingora: 9.11.1961, M.Sc. final students s.n. (KUH); Swat: village Jalvanan near Batkhela, M. Qaiser & A. Ghafoor 1696 (KUH); 1 mile from Batkhela on way to Swat M.Qaiser & A.Ghafoor 4604 (KUH); Swat: Himalaya bor. occid. Kalam, ca. 35o30'N, 72o30'E, substr. granit, ca. 2200 m, 22.4.1962, K. H. Rechinger 1418 (E); Buner, Swat, R.R.Stewart et al. 1228 (RAW); Kalam: A. Khalique 720 (PPFI, KUH); Behind Safaid Mahal, Marghazar, Saeeda Qureshi 13 (KUH); 2 km from Timargarah, on way to Chakdra, A. Ghafoor & S. Omer 2341 (KUH); Hazara Distt: August 31, Abdul Latif (RAW, KUH); 12 miles from Mansehra on way to Abbottabad-Garhi Road after Shisha, S. A. Faruqi & M. Qaiser 3400 (KUH); Mansehra, Balakot Nallah, Mir Ajab & Afzal 1281 (ISL); Urnian, Hazara, Shaukat & Nisar 1318 (ISL); Mahandri, Mansehra, Mir Ajab & Afzal 1190 (ISL); Dadar, ± 4000 ft, Muqarrab Shah & Ayaz Abbasi 1206 (ISL); Roha Nallah, Hazara, Shaukat & Nisar 1683 (ISL); Shohal, Kaghan, Hazara, 9.8.1899, Inayat s.n. (K); Hawargali, Hazara, Shaukat & Nisar 2019 (ISL); B-8 Kashmir: Chunnian, Leepa valley, Muzaffarabad Dist., M. Qaiser & Rizwan Y. Hashmi 7682 (KUH); ibid, P. N. Rohli 121 (RAW, KUH); Mundi, Kashmir, 4750 ft, C. B. Clarke 28215 (K); Eismarkhaw, 6500 ft, Kashmir, C. B. Clarke 31152B & 31160 (K); Near the town of Kishtwar, 27-31.7.1856, Schlagintweit 2983 (BM); Kashmir, Goochi, 6000 ft, herb, G. L. C. Fuller 178 (K); Drained Lake, basin of environs of Kashmir, August 10-Sept. 30, 1856, Schlagintweit 4461 (BM); Lower Sind valley, Kashmir, 10.10.1948, T. Thomas s.n. (K); Shalimar Garden, Dal Lake, 5200 ft, R. R. Stewart 23017 (K); Sind valley, by streamside, 7500 ft, O. Polunin 56/613 (BM); Tangmarg, 6000 ft, O. Polunin 56/305 (BM,E); Phalgam, Kashmir, R. R. Stewart 8302 (RAW); Buniyar range, Kashmir, R. L. Bahwer 5745 (RAW); Kotli, Islam Khilji 195 (RAW). C-6 Kurram, Ali Mangal Post, 5500 ft, near Parachinar, Siddiqui & Nasir 6513 (RAW); Kohat Dist.: Nishterabad, Kohat, Akbar Pura, growing in clear slow running water, Bashir Ahmad Sohail 211 (K); C-7 Rawalpindi Dist.: Sohan river, R. R. Stewart 439 (K).
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Erect, 30-45 (-50) cm high with tufted roots branched from base or above, or sometime simple, annual to perennial herb. Stem glabrous, brown, sometimes shining. Leaves 1.5-8 (-10) x 0.4-1.5 (-2) cm, linear lanceolate to lanceolate, acuminate, margin ciliate, surface glabrous or scabrous or slightly pubescent beneath on the midrib and reddish punctate gland-dotted on both surfaces, petiole 0.2-0.4 cm long. Ochreae 0.25-1.5 (-2.0) cm long, glabrous, ciliae at the mouth of ochrea 1-4 mm long. Inflorescence 3-7 cm long, lax, flowers ± distant, erect, not drooping pedunculate raceme; peduncles 1.0-6.5 cm long. Flowers 1.0-2.0 mm across, pedicellate; pedicel 0.5-1.25 mm long. Ochreolae 1.0-2.0 mm long, ovate, dentate-entire, gland-dotted. Tepals 5, pink, 1.0-3.0 x 0.75-1.5 mm, obovate, obtuse, red gland-dotted. Stamens 6, filaments long, unequal. Ovary 0.5-1.5 x 0.5-0.75 mm, trigonous, elliptic with 3 or sometimes 2 styles united in the upper half, then free; stigma capitate. Nuts 2.5-3.5 (-4) x 1.5-2.0 mm, mostly trigonous, sometimes biconvex within the same raceme, dark brownish, pubescent.
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