356 COMPOSITAE. 



Agoseris glauca aspera (Rydb.) Piper. Perennial, the whole plant thinly 

 white tomentose; leaves linear to lanceolate, entire or sparsely denticulate, 

 5-10 cm. long; scapes 6-20 cm. high; involucre campanulate, 2 cm. high; 

 tegules loosely imbricated in 2-3 series, the outer ones shorter, broadly lan- 

 ceolate, acutish, tomentose, the inner glabrous and acute; ligulate corollas 

 pale yellow; akenes fusiform, 10-12 mm. long, tapering into a stout beak 

 shorter than the body; pappus copious, white, the bristles scabrous. 



In the Cascade Mountains at about 2000 m. altitude. 



Agoseris laciniata (Nutt.) Greene. Glabrous or sparsely pubescent; leaves 

 lanceolate, saliently dentate or pinnatifid into linear lobes, 10-20 cm. long; 

 scapes 30-60 cm. high; involucre somewhat tomentose at base or glabrate, 

 2-3 cm. long; flowers pale yellow; akenes about 15 mm. long, the slender beak 

 several times as long as the body; pappus shorter than the beak, bright white. 



In dry open woods, common. 



Agoseris grandiflora (Nutt.) Greene. Perennial, loosely pubescent or 

 glabrate; leaves lanceolate or oblanceolate, attenuate-acuminate to obtuse, 

 mostly pinnatifid into numerous lobes, 10-20 cm. long; peduncles stout, 30-60 

 cm. high; involucre campanulate, tomentose at base, 3-4 cm. high, the bracts 

 in about 3 series; akenes fusiform, acutely 10-ribbed, 6 mm. long, attenuate 

 into a slender beak, 20 mm. long; pappus bright white, soft and capillary, 

 much shorter than the beak. 



In dry ground, Willamette Valley, where first collected by Nuttall; common 

 east of the Cascade Mountains. 



Agoseris aurantiaca (Hook.) Greene. Sparsely pubescent to nearly 

 glabrous; leaves spatulate to lanceolate, entire or denticulate, rarely toothed 

 or incised, obtuse, short-petioled; scapes 20-40 cm. high; involucre campanu- 

 late, 15-20 mm. high; principal tegules lanceolate and acute, the outer ones 

 oblong, obtuse; flowers orange, becoming purplish; akenes cylindraceous, 

 tapering into a beak as long as the body. 



Common in alpine meadows at about 2000 m. altitude. 



Agoseris gracilenta (Gray) Greene. Glabrous; leaves narrowly lanceolate 

 or linear, mostly entire; scape slender, 3050 cm. high; involucre campanulate; 

 tegules lanceolate, acute, glabrous except at base; flowers orange; akenes 

 fusiform, the body 6-8 mm. long, the beak 8-10 mm. long. 



Alpine meadows in the Olympic and Cascade Mountains. 



Agoseris elata (Nutt.) Greene. Glabrous, somewhat glaucous; leaves 

 spatulate to lanceolate, dentate to pinnatifid, 15-30 cm. long, thickish in 

 texture; scape 15-50 cm. high; head 3 cm. high; involucre hemispheric; tegules 

 lanceolate, acute, pubescent; akenes 6-7 mm. long, the beak as long as the 

 body. 



Prairies, not common. First found by Nuttall near the estuary of the 

 Willamette River. 



Agoseris apargioides (Less.) Greene. Sparsely pubescent, becoming 

 glabrate; caudex stout; leaves spatulate, mucronate, somewhat dentate, 7-10 

 cm. long; scapes exceeding the leaves, 10-15 cm. high; heads 10-12 mm. high; 

 involucre campanulate; tegules green, the outer oblong, mucronate, pubescent, 

 the inner lanceolate, acuminate; akenes 8-10 mm. long, the beak as long as 

 the body. 



Sand dunes along the ocean coast. The northern form has been considered 

 distinct from the California form under the name A . maritima Sheldon. 



492. HIERACIUM. HAWKWEED. 



Hispid and hirsute often glandular perennials with milky juice; 

 leaves merely toothed or entire; heads small to medium, panicu- 



