Plants of the Punjab. 



229 



Herbs, Erect, with Alternate Stipulate Simple Leaves. 



Leaf Margins Entire. 



Polygonum 



Hydropiper, 



Water-pepper, 



Polygonace^. 

 F. B. L V. 39. 



The Plains to 

 7,000 ft. 

 Simla, Naldera 

 (Collett). 

 Hazara (Barrett). 



Polygonum 

 flaccidum, 



Polygonage^, 

 F. B. L V. 39. 

 The Plains to 

 4,000 ft., 

 in wet places. 



Polygonum glaciale, 



Polygonace^. 

 F. B. L V. 41. 



Himalaya, 

 8-12,000 ft. 

 Kashmir. 



Polygonum alatum, 



Sai-halon. 



POLYGONACEJE. 



F. B. I. V. 41. 

 The Plains from 

 2-10,000 ft. 

 Simla (Collett). 



Petals none. 



medium size, annual, stout, smooth, stems some- 

 times prostrate and rooting at the joints, often glandular, 

 joints often swollen, branched ; leaves 2-3 in., lanceolate 

 or oblong-lanceolate, narrowed to the base, dotted 

 with glands, mid-rib with minute hairs, stipules 

 J in., tubular, smooth or minutely hairy with flattened 

 hairs, swollen out near the middle, fringed with short 

 bristles ; flowers pink or red, in very slender drooping zigzag 

 racemes, 2-8 in. long, with gaps along the racemes and leafy 

 at the base, bracts smooth, with or without glands, 

 tubular, mouth naked or minutely bristly, calyx of 5 

 segments, with glands, stamens 6, styles 2 or 3, ununited 

 nearly to the base ; nuts minutely dotted, in the 2-styled 

 flowers circular and flattened, in the 3-styled 3-angled. 

 The juice is used as a diuretic and carminative. 



very like the last species, but larger with longer, 

 broader, and more pointed leaves. 



very small, annual, weak, smooth, nearly succulent, 

 branches spreading from the root ; leaves |-| in., broadly 

 ovate, apex blunt, long-stalked, winged above only, stipules 

 short, smooth, cup-shaped, 2-lobed or not ; flowers minute, 

 white or pale purple in sessile or stalked heads |-J in diam., 

 stalk minutely glandular at the tip, bracts broadly ovate, 

 blunt, smooth, flat, calyx 4-5-lobed, transparent, lobes 

 nearly equal, blunt, stamens 5, no glands, styles 3 united ; 

 nut minute, closely included in the calyx tube, black, 

 striated. 



small to medium size, annual, very variable, the 

 smaller fo m^ like the last species, but with short broad- 

 winged leaf stalk ; leaves J-| in. in the small form, 1-8 in. 

 in the large, broadly ovate, smooth, rarely hairy, blunt 

 or short-pointed, abruptly or gradually narrowed into a 

 broadly winged and sometimes eared leaf stalk, stipules 

 tubular, hairy or glandular below, not fringed with 

 bristles ; flowers minute, white, purplish or red in heads, 

 l^'l in. diam., heads in the axils of leaves on stalks, 



