180 COMPOSITAE 
17. Hemizonia laévis (Keck) Keck. Smooth Spikeweed. Fig. 5286. 
Hemizontia pungens subsp. laevis Keck, Madrofio 3: 14. 1935. 
Hemizonia laevis Keck, Aliso 4: 110. 
Similar to pungens but of somewhat ula habit. Upper leaves and bracts — setose- 
ciliate, het wise very glabrous; heads small, scattered, or approximate in loo lomerul 
a bracts obtuse or P liphaty Prssren sometimes minutely but weakly nate not 
cu 
Dry fields, Upper Sonoran Zone; cismontane southern California away from the immediate coast from Los 
Angeles County south; also southwestern Kern County. Type locality: San Bernardino Valley. April-Sep 
18. Hemizonia parryi Greene. Pappose Spikeweed. Fig. 5287. 
Hemizonia parryi Greene, Bull. oe a 9: 16. 1882. 
. stent seins SAP, Man. Bay . 197. 1894. 
var a Jepson, FLW . Mid. Calif. 532. 1901. 
Hemizonia p wages ns var. parryt H. M. Hall, Univ. Calif. Pub. Bot. 3: 155. 1907. 
Stem 17 dm. high, erect, corymbosely bran xm above, the branches rigid or lax, or rather 
prostrate, more or less leafy, sparsely to copiously hirsute. "Basal leaves linear- to lance-oblong, 
5-20 cm. | Pa My wide, tifi i 
20 c eye mm. pinnatifid > uiineees r the lower cauline more or less hirsute, 
thei re r less ‘spine-tiped, ae upper mostly Vegi linear-subulate, spine-tipped, wit 
fascicles. (incipient shoots or heads) in their axils; eee ssile or short- peduncled along the 
branc and terminal, 2A small clusters; peduncular thee # often exceeding the involucre; 
seen hhemispher ric, 5- oe mm. high, the aie glandular-pubescent, copiously ciliate, the 
glands subsessile; ray-flowers 9— 20, the ligules mm. long, yellow, not fading saffron, : 
receptacular bracts w oe eainois thickened, soft, obtuse ’ acute (not cuspidate) tip; disk- flowers 
or more; dis enes in part sterile; pappus 3-5 el subulate, usually fimbriate 
paleae about equaling the corolla, often united at base — contorted. 
Low, often bemcur = fields, Upper Sonoran Zone; Colusa and Napa Conti to San Mateo and Monterey 
Counties, "Califor . Type locality: Cali istoga Springs, Napa County oe e—Oct 
Hemizonia sane subsp. ridis (Greene) Keck, Madrotio 3: or aCe ntromadia rudis Greene, Man. 
Bay Reg. 197. 1894.) Stem erect, corymbosely or di ffusely rwlcaalice § not prostrate, herbage pale green; leaves 
psa! bracts scabrid-puberulent; inflorescence obscurely if at all glandular; peduncular bracts not &xce eding the 
involucre; heads small; ray-flowers often den en saffron. | in i. fields, a aa Sencean Zone; Great Valley 
of California Glenn County to Me nty. Type loc County. June—Oct 
Hemizonia parryi subsp. congdénil Seer & Green os K eck, Madrone 33° 5. 1935. Gtléavixonia cong- 
donti Robins. = Phage Eats _Gaz 1896; Centromadia congdonii C. P. Smith, Muhlenbergia 4: 73. 
1908; C. pung ongdonti Je epso i oF. PF. Ca WE, 1087. 1925. Ste m erect with ascending or horizontal 
branches, or al "branches ® closely prostrate; herbage yellow-green, ar to copiously be stor but smooth between 
e long hairs; pedun r bracts exceeding the iavelaare: ray-flow not fading saffron. Low aor ege Upper 
Faeroe Zone; San seas Valles Pontes Costa County; lower a of San Francisco Bay, mostly Alameda 
or and lower Salinas Valley, Monterey County, California. Type locality: Salinas, Monterey County. June- 
19. Hemizonia australis (Keck) Keck. Southern Spikeweed. Fig. 5288. 
~ihetes emizonia parry: subsp. australis Keck, Madrofio 3: 15. 1935. 
Keck, Aliso4: 110. 1958. 
Similar to parryi; stem erect, the central leader.of medium length and with long and lax, 
divaricate poe hes, not prostrate, the twiggery above dense; herbage dark green. Leaves and 
bracts densely glandu ar-puberulent and villous; cm bracts not exceeding the involucre; 
heads small; phyllaries 4-5.5 mm. long; r Bases aig fading saffron;  anthets lack. 
Low alkaline fields near the coast, Upper Son one gs arbara County to San Diego County, Cali- 
fornia, oa adjacent Lower California. Type tecuhite: soe Beach. g Roche County. June—Sept. 
20. Hemizonia fitchii A. Gray. Fitch’s Spikeweed. Fig. 5289. 
Hemizonia fitchti A. Gray, Pacific R. Rep. 4: 109. 1857. 
Centromadia fitchtt Greene, Man. Bay Reg. 197. 1894. 
Stem 2-8 dm. high, rigid, erect, above diffusely branched; herbage we a | villous and 
1g) 
beset with prominent stalked glands, unpleasantly heavy-scented. Leav wded, at least in 
the rosette, very slender, the lower pinnatisect, up to 15 cm. long, the pe oitiee, rigid, linear- 
su te, acerose-tipped, often with fascicles in ee — soe dB a involucroid, spreading, 
radiating around the head which they ele, voluc ispheric, densely villous, es — 
prominent glands, the phyllaries rigidly 1-nerved, with aera Ling slightly spressine the 
receptacular bracts soft, pointless, hairy, enfolding the disk-flower; ray-flowers 10-20, the Beet 
light yellow ligules bifid; pappus of 8-12 glistening-white, soft, obi sin leine prose at base and 
long-fimbriate above, equaling the disk-corolla. 
Dry hills and plains away from the immediate coast, Upper Sonoran Zone; southwestern Oregon to San L 
Obispo County, Ca oe Sierran foothills from Siskiyou ounty to eo County, California; Central Valles 
sia patie bese of toe e San Bernardino Mountains , California. Type locality: “Plains of the Sacrame nto, Cali- 
21. Hemizonia multicatlis Hook. & Arn. Seaside Tarweed. Fig. 5290. 
Hemizonia multicaulis Hook. & Arn. Bot. — = 355. 1838. 
Stem scendin, ecumbent, 1-3(-5) dm. high, subsimple or openly branching above 
or theca: ica sel BA ar Riad not crowded into a basal rosette, the lower 
