FLOWERING PLANTS AND FERNS OF ARIZONA 1019 



123. TRIXIS 16 



Shrub; leaves alternate, lanceolate, densely sessile-glandular beneath; 

 heads 9- to 12-flowered, yellow, solitary or clustered ; involucre double, 

 the outer series of several linear to elliptic herbaceous bracts, the inner 

 series of about 8 linear acuminate phyllaries, these corky-thickened at 

 base; corollas all 2-lipped, the outer lip 3-toothed, the inner lip 2- 

 cleft; achenes densely hispidulous, subrostrate; pappus of numerous 

 straw-colored bristles. 



1. Trixis californica Kellogg, Calif. Acad. Sci. Proc. 2: 182. 1863. 



Trixis angustifolia DC. var. latiuscula A. Gray, Syn. Fl. 1 2 : 

 410. 1884. 



Grand Canyon (Coconino County), and from southern Yavapai 

 County to Cochise, Pima, and Yuma Counties, up to 4,500 feet but 

 usually lower, rocky slopes, February to June (sometimes autumn). 

 Western Texas to southern California and northern Mexico. 



Browsed to some extent by cattle. 



124. CICHORIUM. Chicory 



Branched perennial herb; lowest leaves runcinate-pinnatifid, those 

 of the stem clasping, toothed, those of the stiff branches minute; 

 heads blue, rarely pink or white, sessile along the branches or at the 

 tips of short fistulose branchlets; involucre double, the outer series of 

 about 5 short ovate phyllaries, these corky-thickened at base in age, 

 the inner series of 8 to 10 linear phyllaries; achenes obovoid, some- 

 what ribbed; pappus a short toothed crown. 



1. Cichorium intybus L., Sp. PI. 813. 1753. 



Navajo, Yavapai, and Pima Counties, occasional at roadsides 

 and in waste ground, summer. Common weed in the United States 

 and Canada; naturalized from Europe. 



The leaves, especially of cultivated varieties, are cooked like spinach 

 or eaten raw in salads; the root is eaten, under the names "barbe" 

 and "witloof," and also furnishes one of the leading adulterants or 

 substitutes for coffee. The large, bright blue flower heads are very 

 attractive. 



125. ATRICHOSERIS 



Glabrous, sea pose, winter annual, the scape branched above, several- 

 oV many -headed; leaves obovate, spinulose-toothed, 3 to 10 cm. long, 

 often spotted; heads up to 3.5 cm. wide, white; involucre of about 12 

 to 15 equal, 2-seriate, lance-linear, narrowly scabious-margined 

 phyllaries, with a few much shorter ovate outer bractlets; achenes 

 oblong, with more or less corky-thickened ribs, epappose. 



1. Atrichoseris platyphylla A. Gray, Syn. Fl. I 2 : 410. 1884. 



Malacothrix platyphylla A. Grav, Amer. Acad. Arts, and Sci. 

 Proc. 9:214. 1874. 



Mohave and Yuma Counties, up to 2,000 feet, sandy or stony slopes 

 and mesas, March and April. Southwestern Utah and western 

 Arizona to southeastern California. 



16 Reference: Robinson, B. L.,and Greenman, J.M. revision of the Mexican a.nd central American 

 species of trixis. Amer. Acad. Arts and Sci. Proc. 40 (Grav Herbarium Contrib. 28): 

 6-14. 1904. 



