SUNFLOWER FAMILY 415 
the base; involucre Papas pt 4-5 mm. high, 2.5-3.5 mm. wide, canescent, the outer phyllaries 
Piso orbicular and acute, hes inner elliptic to spatulate and obtuse; ray- nite ets absent; disk- 
br cart 18. 
s 5-16, fertile; cencien somewhat prismatic, glabrous ; ee acle glabro 
sont eep rocky hillsides and rocky ab mer ic pper Sonoran Zon ral and duibishive Washin ton, 
att Boot. oe , and western Idaho. Type locality: ‘‘plains of pon gy tare ] River, in the Rocky a 
ta 
24. Artemisia a A. Gray. San Diego Sagewort. Fig. 5716. 
onbeeuinte nsenitie: Gray, ae r. Acad. 11: 76. 1876. 
Imert Rydb. ae Fl. 34: 285. 1916. 
Shrubby at the base a long, apogee wand-like stems 10-30 dm. high, in clusters up to 
10 dm. ac bane casemate the | woody stems covered with a grayish yellow bark, herbaceous 
ems green or yellowish below, reddis ve, piinnt striated, glabrous or minutely puberulent. 
Lea cm. long, pinna parted into 3-9 linear or linear-la eolate | , some entire, linear 
or linear-lanceolate, marg sely revolute, glabrous or min puberule bove, d ly 
tomentose bene h; inflo errens broadly paniculiform, the eads sessile or on peduncle 
long; involucre hemisphe c or campanulate, 2.5-4 mm. high, mm. aoe sparingly pubescent 
or glabrous, the inner phyllaries te na ahd than the o ; ray- -florets absen nt; disk-florets 12-30, 
nearly Mae smatic, franuliferous acle chaffy, each Hae subtended by an elliptic obtuse bract, 
or center florets without beatles me eo. 
soc and moist banks, Upper Sonoran Zone; southwestern San Diego County, California, and north- 
western Lower California. Type locality: Jamul Valley, San Diego County. July—Aug. 
5711. Artemisia arbuscula 5713. Artemisia cana 
5712. Artemisia tripartita 5714. Artemisia rothrockii 
