Evpatorivm COMPOSITAE Solidago 



3. Eupatorium Linn. Boneset fH^if (Lan Ts'ao Shu; Fragrant-herb Genus) 



Erect mostly perennial herbs (ours), shrubs or trees with usually opposite lvs.: 

 heads discoid, with many mostly white, lavender, or purple fls.; involucre in 2-many 

 overlapping series: style brs. long-exserted, glabrous or nearly so: fr. 5-angled or 

 ribbed; pappus of many long stiff hairs in one series. 600 species, chiefly American; 

 7 in China. (Dedicated to Mithridates Eupator, 132-63 B.C., who is said to have used 

 a species of the genus in medicine.) 



Key to the Species 



Fls. whitish: bracts of the involucre obtuse: lvs. ovate-lanceolate, 



oblong or ovate, sometimes 3-parted 1 . E. japonicum 



Fls. pinkish: bracts of the involucre acute: lvs. linear to lanceolate. . 2. E. lindleyanum 



1. Eupatorium japonicum Thunb. |I_lH| (Shan Lan; Mountain Fragrance) (Mak.F.78). 

 Erect herb, to 1.5 m.; fls. greenish white, VI-IX. Southeast Asia; locally in An., 

 Ki., Ku. Brushland, grassland, woodland. 



la. Eupatorium japonicum Thunb. var. tripartitum Mak. (Kit.C. 1:285). Lvs. 

 tripartite; terminal segments larger than the lateral ones. Locally in An. 



2. Eupatorium lindleyanum DC. &WM (Pai Ku Ting; White-drum-nail) (Be. F. 172). 

 Erect herb, to lm.; fls. pinkish, VI-IX. Eastern Asia; locally in An., Ki., Ku. 

 Meadows. 



III. Astereae Aster Tribe ^f^M (Tzu Wan Tsu) 

 Erect herbs (ours) or shrubs with mostly alternate lvs.: heads radiate or discoid; 

 receptacle usually naked: disk fls. generally yellow; anthers not tailed at the base; 

 style brs. of disk fls. flattened, ivith terminal appendages; pappus various or none. 100 

 genera, of world-wide distribution, but most common in America. 



4. Solidago Linn. Golden Rod — $.MtkM (I Chih Huang Hua Shu) 

 Erect perennial herbs, sometimes woody at the base, with alternate nearly sessile 

 lvs.: heads small, oblong to campanulate, less than 1cm. across, clustered: bracts of 

 the involucre overlapping, in several roivs, the outer shorter: ray and disk fls. yellow: 

 fr. terete or angled, usually ribbed; pappus of slender bristles. 125 species, mostly of 

 North America; one in China, with others cultivated or naturalized. (Greek: solidare, 

 to make whole; from its reputed use in healing wounds.) 



Key to the Species 



Heads very small (disk 4mm. or less high) and very numerous in a 



broad terminal panicle with spreading 1-sided racemiform brs 1. S. canadensis 



Heads larger (disk mostly 6-9 mm. high), few to rather numerous, in 

 axillary clusters and terminal, forming when well developed an oblong 

 thyrsoid panicle 2 . S. virgaurea 



1. Solidago canadensis Linn. $kf\\—&Mtt (Mei Chou I Chih Huang Hua; American 

 Solidago) (B.M.1005). Erect herb, to 2.5 m.; fls. yellow, VIII-X. Introduced from 

 eastern North America; locally in Ku. Cultivated, ornamental, naturalized. 



2. Solidago virgaurea Linn. —I^MKt (I Chih Huang Hua; A-cluster-of -yellow-flowers) 

 (Be. F. 179). Erect herb, to 8dm.; fls. yellow, IX-X. Eurasia; locally in Ki., Ku. 

 Grassland. 



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