POLYGONUM 



POLYGON UM 



2743 



petioled or nearly sessile, oblong-lanceolate, narrow- 

 acuminate, usually contracted and more or less cordate 

 or truncate at base: fls. white or pink, %in. diam., in 

 large thyrse-like spreading terminal panicles with 

 branches erect or decurved and very slender pedicels; 

 2 outer sepals much smaller than the inner. Himalaya, 

 7,000-14,000 ft. altitude; Afghanistan. G.C. III. 53, 

 suppl. May 17. G.M. 52:929. M.D.G. 1896:373, 385. 

 An excellent plant for late autumn bloom, in moist 

 places. 



17. lichiangense, W. W. Smith. Closely allied to P. 

 polystachyum, but branches and stipules setose, Ivs. 

 setose above and densely cinereo-tomentose beneath: 

 erect, with a woody base, 2-4 ft., the branches striate: 

 Ivs. very short-petioled, 2-5 in. long, lanceolate or 

 oblong-lanceolate, caudate-acuminate, the margin more 

 or less undulate; stipules about 1 in. long: fls. creamy 

 white, in thyrspid-paniculate clusters at nearly every 

 node, the pedicels slender and about 1 line long. 

 Lichiang Range, China, 10,000^11,000 ft. altitude. A 

 recent, intro., with fl. -sprays said to resemble those of 

 P. baldschuanicum. 



18. campanulatum, Hook f. Pubescent or tomen- 

 tose perennial, the sts. creeping or stoloniferous at 

 base, forking above, 2-3 ft. : Ivs. stalked, 3-6 in. long, 

 elliptic, lanceolate or ovate, acuminate, the base narrow 

 or rounded, more or less pubescent above and below; 

 stipules large, mostly deciduous: fls. pale pink or red 

 in autumn, in divaricately branched nodding or droop- 

 ing terminal clusters; perianth campanulate, ^ in. long 

 or somewhat larger; stamens 8, with very long fila- 

 ments. Himalayan region. G.C. III. 52:489. Variable. 



FF. Lvs. much wider, on the oval or broad-oval order, 

 usually (or at least the lower ones) very broad-based. 



19. Sieboldii, De Vriese (P. cuspiddtum, Sieb. & 

 Zucc., not Willd. P. Zuccarinii, Small). Fig. 3105. 

 Strong stout handsome bushy somewhat woody 

 perennial (stalks dying to the ground in winter), grow- 

 ing 4-8 ft. high, the sts. gracefully curving outward: 

 Ivs. short-oval to orbicular-ovate, truncate or slightly 

 cordate at base, abruptly pointed, the strong side 

 nerves uniting in marginal loops; sheaths short and 

 flaring, deciduous: fls. small and whitish, very numer- 

 ous, in drooping slender-panicled racemes, the sta- 

 mens 8, and the achenes trigonous. Japan. B.M. 6503. 

 R.H. 1858, p. 631; 1894, p. 54. Gn. 26, p. 317; 49, p. 

 238. G. 3:143. G.M. 47:861. G.W. 2, p. 76. A very 

 effective plant for bold mass effects, perfectly hardy in 

 the northern states, and now frequently planted. It is 

 everywhere known in the trade as P. cuspidatum. It 

 produces clouds of bloom. Var. compactum, Hort. 

 (P. compactum, Hook, f.), is of very compact habit, 

 remaining sometimes only 2 ft. high, bearing many 

 erect panicles of whitish fls.: a good subject. B.M. 

 6476. G.C. III. 47:123. Gn. 63, p. 56. Gn.W. 20:926. 

 Var. spectabile, Hort. (P. cuspidatum var. spectdbile, 

 de Norter). Shrubby, 3-5 ft.: Ivs. marbled with green, 

 white, and red. R.B. 35, p. 233. 



20. Weyrichii, F. Schmidt. Tall herb (3 ft.): sts. 

 hispid, in the upper part tomentose: sheaths elongated, 

 membranous, pilose, finally fissured and falling off: 

 Ivs. short-petioled, ovate, acuminate, dull green and 

 rugose above, whitish tomentose beneath, to 7 in. long, 

 the lower ones broader and truncate at the base, the 

 upper ones attenuate at the base, revolute at the 

 margin: racemes axillary and terminal, forming a large 

 terminal panicle; rachis fulvo-tomentose; pedicels 

 articulate about the middle; bracts hyaline, glabrous, 

 2-lobed, 3-6-fld.; stamens 8: achenes 3-angled. Sag- 

 halin. A good hardy perennial for moist ground. 



21. sachalinense, F. Schmidt. SACALINE. Fig. 3106. 

 Exceedingly vigorous plant, spreading rapidly from 

 the tips of strong underground shoots, the reddish gla- 

 brous dead stalks often standing 8-12 ft. high through 



174 



the winter: Ivs. very large, frequently 1 ft. or more 

 long, soft dull green, the blade oval-oblong, 13^-2 

 times as long as broad, shallow-cordate at base, scarcely 

 pointed, the prominent side veins uniting by the ends: 

 fls. greenish, in relatively small axillary clusters, the 

 achene trigonous. Isl. of Sachalin, north of Japan, in 

 Russian territory. B.M. 6540. R.H. 1876, p. 36; 1893, 

 pp. 394, 395; 1894, p. 55. Gn. 21, p. 280; 62, p. 439. 

 G. 5:311. G.C. II. 26:813 and III. 14:159 (in. fr,). 

 G.M. 31:176. V. 17:161. Recently intro. (in N. 

 Amer. in 1894) for forage and for ornament. It is 

 inveterately persistent when once established, and may 

 easily become a pest. For forage it has little merit 

 where other things can be grown, for it is too coarse. 

 For planting in rough places, where a thick cover is 



3106. Polygonum sachalinense. (X 1 A) 



required, it is one of the best of all coarse herbaceous 

 perennials. It is perfectly hardy in the N. and seems 

 to thrive anywhere. P. Sieboldii was once distributed as 

 sacaline, but that species is much smaller, with smaller 

 shorter and square-based Ivs., and with more profuse 

 bloom. 



22. Spaethii, Damm. St. erect, 10 ft. and more, 

 thick, minutely puberulent but becoming glabrous, 

 the young growth densely pubescent or somewhat 

 hirsute: Ivs. petioled, cordate-ovate, acute or acumi- 

 nate, the upper ones lanceolate, and attenuate at base, 

 margin somewhat undulate and ciliate; sheath salver- 

 shaped, densely pilose outside, the limb foliaceous, 

 crenate and pilose: fls. in few-fld. paniculate spikes, 

 short-pedicellate, carmine-red; stamens 5^-6: achene 

 lenticular. China. Much like P. sachalinense, but 

 differs in its fls., and the pubescence or hairiness. 



