GrNnus 04. THISTLE FAMILY. 527 
12. Artemisia Stelleriana Bess. Beach 
Wormwood, — lig. 4582. 
Artemisia Siclleriana Bess. Abrot. 79. pl. 5. 1829. 
Perennial, densely white-tomentose ; stem branch- 
ed, 1°-24° high, bushy, the branches ascending. 
Leaves obovate to spatulate, 1-4’ long, pinnatifid 
into oblong, obtuse, entire or few-toothed lobes, 
the lower petioled, the upper sessile, all densely 
tomentose beneath, but becoming green and gla- 
brous above when old; heads racemose-spicate or 
racemose-glomerate, 3-4” broad, not drooping; 
involucre oblong-campanulate, its bracts tomen- 
tose, lanceolate or oblong-lanceolate; receptacle 
naked; central flowers fertile. 
Sandy sea-beaches, Quebec to New Jersey; Oneida 
Lake, N. Y. Cultivated in gardens along the coast. 
Native of northeastern Asia. Occurs also on the 
coast of Sweden. Foliage similar to that of the dusty 
miller, Cineraria maritima L. July-Aug. 
13. Artemisia vulgaris L. Common Mug- 
wort. Fig. 4583. 
Artemisia vulgaris L. Sp. Pl. 848. 1753. 
Perennial; stem glabrous or nearly so, much 
branched, 1°-34° high. Leaves 1’-44’ long, deeply 
pinnatifid, into linear, oblong or somewhat spatu- 
late, pinnatifid, toothed or entire lobes, densely 
white-tomentose beneath, dark green and glabrous 
above, the lower petioled and often with I or 2 
pairs of small lateral divisions at or near the 
base of the petiole, the upper sessile, the upper- 
most sometimes linear and entire; heads numer- 
ous, erect, about 2” broad, in panicled, simple or 
compound spikes; involucre oblong-campanulate, 
its bracts oblong, obtusish, scarious-margined, 
tomentose or glabrous; receptacle naked; central 
flowers fertile. 
In waste places, Nova Scotia to Ontario, Michigan, 
New Jersey, Pennsylvania and Georgia. Naturalized 
from Europe. Native also of Asia. Reported as 
native of arctic America. Motherwort. Fellon-herb. ailor's-tobacco. Wormwood. Bulwand. 
Green ginger, July—Oct. 
Artemisia elatidr (T. & G.) Rydb., a northwestern 
species, with elongated acuminate leat-lobes, ranges 
eastward to Hudson Bay. 
14. Artemisia péntica L. Roman or Hun- , 
garian Wormwood. Fig. 4584. 
Artemisia pontica L. Sp, Pl. 847. 1753. 
Perennial: stem branched, glabrous or canescent, 
1®-3° high. Leaves 1§’-2' long, 2-3-pinnately dis- 
sected into short narrow lobes less than 1” wide, 
canescent on both sides, or tomentose beneath, the 
lower petioled and the petioles somewhat clasping 
or auricled at the base, the upper mostly linear and 
entire; heads numerous, 1°-2” broad, drooping, 
slender-peduncled; involucre hemispheric, canes- 
cent, its bracts oblong or obovate, obtuse, the outer 
short, lanceolate; receptacle glabrous; central flow- 
ers fertile. 
Waste grounds, Massachusetts, New Jersey, Pennsyl- 
vania, Ohie and Colerade. Fugitive or adventive from 
central Europe. July-Aug. 
