SUNFLOWER FAMILY 271 
Herbage hairy; leaves Sst, with persistent fascicles in the old 
axils; ray—florets 0-2; spring-flowering 
0. eo cooperi. 
Leaves a = omg a arborescent shrubs mostly 1-3 m. high; cis- 
41, H. arborescens. 
hl lat 3 oa 3 
to oDoVate, 2—- 
10 mm. wide. 
Heads 9-12-flowered, discoid; erect shrub 2-5 m, high; leaves 2-6 cm. 
long ey tapering to base and apex. 42. H. parishii. 
Heads Regs flowered, sometimes radiate; spreading cnr montty less 
a ka leaves cuneate, 43, H. cuneatus. 
1. Haplopappus gracilis oe A. aig Annual Bristleweed. Fig. 5446. 
Distr wronties a fags Acad. Phila. II. 1: 
ay, Mem. Amer. ke bs 4: “3 1849, 
As tev d ieteria : Kuntze e, ee v. Gen. Pl. 1: 315. wg 
Brice carpal suger pig Erythea 2: 109. 18 
Nels. Bot. Gaz. 37: fae 1 4, 
Méchaeranihare sine Shinners, Field & Lab. 18: 41. 1950. 
Annual herb 6-35 cm. high, yond divaricately branching throughout, hirsute, usually strigose. 
Leaves numerous, lerleéte the lowe a ceolate, pinnatifid or bipinnatifid, 1. 5-3 cm. 1 , 
mm. wide, the upper linear, appres reduce ; — aos gn to serrulate, euch tooth or 
lobe and apex tipped with a prominent white bristle; heads cymose or solitary; inv — re hemi- 
spheric, 6-7 mm. high, 8-12 mm. wide; phyllaries finiea Aguas: wel imbricated, green with 
hyaline ee cinereous or strigose ‘aad ainanely: se ular- puberulent, with adureabed bristle- 
tip; ray-florets 16-28, the ligules 7-12 mm. long; pappus of numerous tawny unequal bristles 
slightly dilated below 
Sandy or rocky flat eae slopes, Lower Sonoran Zone; eastern Mojave Desert from Clark Mountain to Provi- 
dence Mashtaloe Ban Reroadetae County, California, east to Colorado, Texas, and Mexico. Type locality; near 
Santa Fe, New Mexico. April-June. 
2. Haplopappus gooddingii (A. Nels.) Munz & Jtn. Goodding’s Bristleweed. 
re 5447.: 
pescerhraare. gooddingti A. Nels. Bot. Gaz. 37: 266. 
aplopappus qqoaamoe gone & Jtn. Bull. peeik cua 49: 44, 
Pe t i Blake, Contr. U.S. Nat. Herb. a 543. 1925. 
Haplopappus spinulosus ome: gooddingii H. “4 Hall, Carnegie Inst. Wash. Publ. No. 389: 75. 1928. 
Taprooted perennial with ie stiffly erect or ascending, slender stems 2-6 dm. high, slabrate 
to harshly pra lar-puberulen metimes also canescent. Leaves scattered, lanate ventrally, 
= doraatn eeeniee, ee ge and remote lobes linear and bristle-tipped, 2-5 cm. toe. the 
upper becoming entire and much reduced; heads terminating long branches ; involucre depressed- 
paisa esineong 9 mm. hig 8 mm wide ; pera pea Tanceolat ate, well imbricated, Pe. 
prominently slandular-puberutent and “scabrous , with short apica a bristle; ray-florets 30-45, t 
ligules 6-16 mm. lon of numero 5 ed snceval brist 
Rocky mesas, ‘aie sae pe cliffs, ph: Sonoran Zone; eastern sie reaps 9 “ae to southern 
Nevada and northeastern Arizona. Type locality: ‘‘The Pockets,” southern Nevada. 
5446. Haplopappus gracilis 5447. Haplopappus gooddingii 
