170 SUB-ALPINE PLANTS 



Artemisia incanescens Jord. 



Plant i-2j feet high, smelling like terebinth, covered with 

 white tomentum, especially in the upper portion, the stem being 

 almost glabrous below. Leaves white-felted on both sides, not 

 spotted, divisions of leaflets linear. Flowering heads shortly stalked 

 and forming a long, loose panicle. 



Dry, hot, and stony places in the mountains up to about 5000 

 feet, as near La Grave in Dauphine" ; local. September. 



Distribution. Departments of Hautes-Alpes, Basses-Alpes, and 

 the Var in France ; Spain, Italy. 



ACHILLEA L. 



Leaves alternate, much divided or rarely simple Flower-heads 

 small, in a terminal corymb with white or pink rays and a yellow 

 disk. Involucres ovoid or hemispherical, the bracts imbricated, 

 slightly scarious at the edges. Receptacle small, not convex. 

 Achenes without any pappus. 



A considerable European and West Asiatic genus. 



Achillea Clavena L. 



Stem erect, 3-8 inches high, leafy, and, like the leaves, covered 

 with a grey felt of silky hairs, bearing at the summit a cluster of 

 capitula in a corymbose cyme. Leaves obovate-lanceolate or wedge- 

 shaped, simply pinnatifid, with linear teeth. Ray-flowers 6-8, as 

 long as the involucre, or longer. Capitula large ; involucral bracts 

 with a black margin ; ray white ; disk greenish yellow. 



On rocks and debris of the calcareous Alps ; 5000-7000 feet. 



Common (in the Eastern Alps) and sometimes descending the 

 valleys. 



Distribution. Eastern and Central Alps. In Switzerland only 

 on Monte Generoso. 



Achillea Ptarmica L. Sneezewort. 



Stems i2 feet high, erect, glabrous, branched only at the top. 

 Leaves broadly linear, regularly serrate. Flower-heads few, in a 

 loose terminal corymb. Involucres hemispherical, rather cottony, 

 larger than in the Milfoil. Ray-florets from 10-15, short, broad, 

 white ; disk-florets numerous, interspersed with linear scales. 



Damp, hilly pastures, becoming a mountain plant in Southern 

 Europe, where, e.g. on the Col des Montets on the Franco-Swiss 

 frontier it ascends to 5000 feet. August, September. 



Distribution. Most of Europe, except the Mediterranean region, 

 Russian Asia. Britain. 



Achillea Millefolium L. Milfoil or Yarrow. 



Leaves rather villous, especially on the back, or sometimes 

 glabrous. Lobes linear-lanceolate, Flowers white or often pink, 



