COMPOSITE. 113 



8. A. Absinthium, L. (COMMON WORMWOOD.) Some- 

 what shrubby. Whole plant silky hoary. Stem angular, 

 branched, the branches with drooping extremities. Leaves 

 2-3-pinnately divided, the lobes lanceolate. Heads nodding. 

 Escaped from gardens in some places. 



9. A. friglda, Willd. (PASTURE SAGE-BRUSH.) A low 

 plant, growing in tufts, white-silky. Leaves dissected into 

 narrowly linear divisions. Heads globose, in racemes. 

 N.W. 



10. A. ea'na, Pursh. (SAGE-BRUSH.) Slightly shrubby, 

 1-2 feet high, much branched, silvery-hoary. Leaves 

 narrow, tapering to both ends, small, mostly entire. Heads 

 clustered in a leafy narrow panicle, few-flowered. N. W. 

 plains. 



11, EREIITI'TES, Raf. FIREWEED. 



E. hieraeifolia, Raf. Stem tall, grooved. Leaves 

 sessile, lanceolate, cut-toothed, upper ones clasping. 

 Common in places recently over-run by fire. 



12. GXAPHA'LIirm, L. CUDWEED. 



1. G. deeur'rens, Ives. (EVERLASTING.) Stem erect, 2 

 feet high, clammy-pubescent, white-woolly on the branches. 

 Heads corymbed. Leaves linear-lanceolate, partly clasping, 

 decurrent. Fields and hillsides. 



2. G. polyeeph'alum, Michx. (COMMON EVERLASTING.) 

 Stem erect, 1-2 feet high, white-woolly. Heads corymbed. 

 Leaves lanceolate, tapering at the base, not decurrent. 

 Old pastures and woods. 



3. G. uligino'sum, L. (Low CUDWEED.) Stem spread- 

 ing, 3-6 inches high, white-woolly. Leaves linear. Heads 

 small in crowded terminal clusters subtended by leaves. 

 Low grounds. 



4. G. sylvat'ieum, L. Erect, usually 9-12 inches high. 

 Leaves linear. Heads axillary, nearly sessile, forming an 

 erect leafy spike. Scales obtuse with a brown bar across each 

 near the top. ML Prov, 



