268 



COMPOSITE 



glabrous, succulent, afid creeping, with shining leaves and erect 

 peduncles i — 2 in. high. It is naturalised near Birkenhe^td. 



21. Tanacetum (Tansy). — Strong-scented herbs or under- 

 shrubs ; leaves scattered, much divided ; heads solitary or corymb- 

 ose, sub-globose, yellow ; bracts membranous at their edges ; 



receptacle convex, 



naked ; florets all 

 tubular ; fruit angu- 

 lar, crowned with a 

 lobed membranous 

 disk. (Name said to 

 be from the Greek 

 athdnaton, immortal.) 

 I. T.vulgdre (Com- 

 mon Tansy). — The 

 only British species, 

 2 — 3 feet high ; ste7n 

 angular, leafy ; leaves 

 deeply bipinnatifid, 

 serrate ; heads many, 

 bright yellow, button- 

 like, in a terminal 

 corymb. — Hedges 

 and waste ground ; 

 common. The whole 

 plant is bitter and 

 aromatic, and is not 

 only used in medi- 

 cine, but was the 

 principal ingredient in 

 a nauseous dish called 

 Tansy Pudding. — Fl. 

 August, September. 

 Perennial. 



ARTEMi'siA ABSiNTHiUJi {Coiiuiion Worunvood). 



22. Artemisia 

 (Wormwood).— Herbs 

 and undershrubs with a bitter or aromatic taste ; leaves scattered ; 

 heads small, in racemes or panicles ; tracts with membranous 

 margins ; receptacle naked, narrow ; florets all tubular ; no pappus. 

 (Name from Artemis, the Diana of the Greeks.) 



I. A. Absinthium (Common Wormwood).— A bushy plant, i — 

 3 feet high, with silky stems ; leaves twice pinnatifid, with bluntish 

 segments, silky on both sides ; heads many, small, panicled, 



