CLASS XIX. ORDER 11. | ACHILLEA. 1097 
looking, and would look well on a border. They remain a long 
time in perfection, and, according to Linnzeus, afford a good yellow dye, 
and are much used in Sweden for that purpose. 
GENUS XLV. ACHILLA’'A.—Linn. Yarrow. 
Nat. Ord. Composi'tx. Juss. 
Gen. Coan. Jnvolucrum ovate, imbricated. Florets of the circum 
ference from five to ten, its limb short, roundish. Receptacle 
flat, paleaceous. Jruit compressed, the’apex simple, or crowned 
with a prominent margin.—Named after Achilles, who is said to 
haye been the first to have discovered its healing properties. 
* Hlowers yellow. 
1. A. tomento'sa, Linn. (Fig. 1308) Woolly Yellow Milfoil, or 
Yarrow. Leaves villous, linear lanceolate, bi-pinnatifid, the segments 
linear, bristle-shaped, crowded; corymb repeatedly compound ; ligule 
short, broad. 
English Botany, t. 2532.—English Flora, vol. iii. p. 463.—Hooker, 
British Flora, ed. 4. vol. i. p 309.—Lindley, Synopsis, p. 151. 
fioot somewhat woody, creeping, and fibrous. Stem about a foot 
high, curved at the base, becoming erect, angular, striated, woolly, 
simple. Leaves numerous, sessile, linear lanceolate, downy, pinnules 
of the radical and lower leaves three-partite, of the upper bifid, and the 
uppermost entire, all lanceolate, bristle pointed, and crowded. Inflo- 
rescence aterminalrepeatedly compound many flowered crowded corymb. 
Involucre hemispherical, imbricated, its scales ovate, obtuse, with a 
narrow brown membranous margin. lorets all golden yellow, those 
of the ray fine, tubular, with a broad ovate entire or three toothed 
limb, spreading, those of the disk tubular, five cleft. Leceptacle flat, 
its scales thin, membranous, ovate lanceolate. 
Habitat.—Dry hilly pastures; Scotland, Spittle-hill, North-west of 
Balvie, Dumbartonshire, and near Paisley. 
Perennial; flowering in August, 
The whole plant, when rubbed, has a pleasant aromatic smell. It 
is hardy, and flourishes well on artificial rock work or dry banks, 
and is a very pretty showy looking plant. 
*k Flowers white, or buff coloured. 
2. A Millefo'lium, Linn. (Fig. 1309.) Common Yarrow or Milfoil. 
Leaves cottony, or nearly smooth, bi-pinnate, linear lanceolate, bi- 
pinnatifid, the segments linear, acute, bristle pointed, toothed; stem 
erect, furrowed ; corymb repeatedly compound ; ligule broadly ovate, 
short. 
English Botany, t. 758.—English Flora, vol. iii. p. 463.—Hooker, 
British Flora, ed. 4, vol. i. p. 309.—Lindley, Synopsis, p. 151. 
