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Pakistan | Family List | Pakistan V. 205 | Polygonaceae | Aconogonon

3. Aconogonon rumicifolium (Royle ex Bab.) Hara in adnota 1966, Fl. E. Himal. 632. in adnota 1966; in Hara et al., Enum. Fl. Pl. Nepal 172. 1982; S.-P. Hong in Act. Univ. Upsal. (Symb. Bot. Upsal.) 30(2): 65.1992.

Polygonum rumicifolium Royle ex Bab. in Trans. Linn. Soc. 18: 112. 1838; Hook. f., Fl. Brit. Ind. 5: 51. 1886; Rech.f. & Schiman-Czeika in Rech.f., Fl. Iran. 56: 53. 1968; R.R.Stewart, Ann. Cat. Vasc. Pl. W. Pak. & Kashm. 209. 1972; Bhopal & Chaudhri in Pak. Syst. 1(2): 72. 1977; Polygonum rumicifolium var. cordatum Royle ex Bab., l.c. 112; Polygonum hissaricum M.Popov in Not. Syst. ex Herb. Hort. Bot. Petrop. 5: 38. 1924; Aconogonon hissaricum (M. Popov.) Sojak in Preslia (Praha) 46: 151. 1974; Polygonum glaberrimum Kitam. in Act. Phytotax. Geobot.17: 141. 1958; Pleuropteropyrum rumicifolium (Royle ex Bab.) Munshi & Javeid, Syst. Stud. Polyg. Kashm. Himal. 79. 1986; Aconogonon rumicifolium var. glaberrimum (Kitam.) S.-P. Hong, l.c. 68.

Erect, 20-60 cm tall, glabrous-hairy, biennial-perennial herb. Stem mostly simple, stout, reddish brownish, canaliculate, glabrous to densely hairy, sometimes hairy only in canals. Leaves thick, rather fleshy, (4.0-) 5.0-14 (-15) x 2-7 (-10) cm, broadly lanceolate - narrowly ovate, acute - acuminate, entire - dentate, ciliate on margins and veins, hairy on surface or glabrous. Ochrea 2-6 cm long, tubular, membranous ciliate, mainly on veins, dentate. Inflorescence lax-dense, few to many flowered, terminal and axillary, 2-8 cm long panicles, branches nodding in fruit. Ochreolae elliptic, acute. Flowers small, c. 4 cm across, subsessile. Tepals 5, 1.5-4.5 (-6) x 1.2-3.0 mm, biseriate, unequal, obovate-elliptic, obtuse, greenish. Stamens 7-8, equal, filaments not much long, anthers dorsifixed. Ovary trigonous 0.25-0.1 x 0.25-0.5 mm, obovate, with 3, free but very short styles and capitate stigmas. Nuts trigonous, 3-5 x 2-2.5 (-3) mm, brown, glabrous and shining, slightly exerted beyond the tepals.

Fl. Per.: June-July.

Type: Kunawur, Royle (LIV).

A plant of higher altitudes grows from 3000-4500 m on slopes and moist and shady places, in open rocky slopes or in alpine meadows, along streams or among crevices.

A variable species especiallly in the degree of pubescence, sometimes glabrous forms are recognized as var. glaberrimum (Kitam.) S.-P. Hong; Distribution: Afghanistan, Pakistan, extending up to Nepal and Xizang.


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