SUNFLOWER FAMILY 391 
long, linear-lanceolate, finely dissected into linear-lanceolate segments, prominently spine-tipped; heads few, 
5-7 mm. high, in dense, flat- sopped corymbs, the margins of phyll to black, yee va Zone, = Asie 
Alpine Zone; Alaska southward to Inyo and T tere Counties, California, eastward t e Rocky 
Type locality: Teton F orest Reserve, Week ing. July—Oct. n=18. 
Achillea millefolium var. ae (Rydb.) c. N. Jones, Univ. Wash. Publ. Biol. 5: 250. 1936. 
(Achillea pacifica Rydb. N. gee’ l. 34: age ara? gue jeg 3-10 dm. high from long slender 
ee: roots fibrous from the entire re ome system; herbage n, moderately ye sontne rm nce pes 
15-35 cm. long, dissected into ig ieweds spine- tipoed’ Reins oe, ye many, 
round- to saad eet “per raga —— hyaline = hier straw color. Interior area, Arid Be Humid ” Transition 
Zones; eget nee British Columbia, Washington, and Oregon along the ee — of the Cascade 
Mountains an rm fin aes of Humboldt Con unty, California, extending eastward along the western 
slopes of se Sictra Meuse. south to San Diego County. Type locality: Grenada, Siskiyou Coabty. California. 
vent n=18. A variable taxon containing many forms, some indistinguishable from form of var. cali- 
“Achillea millefolium var. pubérula (Rydb.) Nobs in Ferris, Contr. Dudley Herb. 102. 1958. (Achillea 
te han Rydb. N. Amer. Fl. 34: 223. 1916.) ae robust, 10-18 dm. high, eas, arising from long 
ender rhizomes; roots fibrous, concentrated into a dense but gg rye ~ base % Brass seme; herbage dark green, 
po sely villous to puberulent; leaves Nass lancetiane: Benes 4 sected into linear, spine-tipped 
segments; upper surface nearly glabrous; heads 5-7 tr % = Sm end: ai veera corymbs, the 
ag ac eos eee st Salt cand ee sarshen, amid Transition one; ‘San Francisco tay region 
n Marin, Solano, and Contra Costa Cou , California. Type locality: Suisun Marsh, Solano County. July— 
ug. += 
Achillea poatyetinns var. litoralis Ehrendorfer ex Nobs in Ferris, Contr. Dudley Herb. 5: 101. 1958. 
Stems stout 4 dm. high, ascending to dec siya arising from well-developed rhizomes; roots essentially 
fibrous from di rhizomes but eres strong central taproot; herba . bev green, sparsely igre through- 
out; leaves abundant, congested, onal:  iseresiaa. primary pinnae borne at right angles to the Dawes 
ultimate segments highly congested oa very fleshy, tapering into es wa callous spine-tips; heads ¥, 
4-6 mm. high, densel ne ted into broad, roun os spre corymbs, the eg rf fp south of ee white Ex. 
posed coastal bluffs, Curry and oos Counties, Ore: Type locality: - bluffs = geen 
County. May—Sept. n=18. A maritime form of we tetrapiold closely allied to va fl? Ros ta 
meer eres in- ahgin a habit. 
Achil lefolium var. califérnica Potent) Jepson, Man. Fl. Pl. Calif. 1137, 1925. (Achillea cali- 
ere Pe Bull. Torrey Club 26: 369. 1899; millefolium f. californica H. M. Hall, ber seer Pub. 
3:211. 1907; A. borealis subsp. californica Ket, Carnegie Inst. Wash. Publ. No. 9. 1940; 
: icra var. californica J. T. Howell, Leaflets West Bot. 5: 107. 8.) Stems stout, S12 tne ao" aris- 
ing from thick, well-developed dieses root-s ns stem a well-d peeoees : tapeent secondary fibrous roots from 
the rhizomes; herbage green, occasionally grayish, moderately villous; Cag gel ge long, linear-lanceolate, 
finely dissected into — linear, spine-tipped segments; heads mum fOBR , up to high, in many-branched, 
Scio loose corymbs, the phyllary-margins light brown. Coastal regions, Upper Seatinene aad Humid Transition 
Zones ays Harbor County, Washington, south to Lower Californi _—_ ee babes 4 the foothills of the scsi 
Ate gentise gralifecnia (Eldorado County). Type locality: seat ast at Sant sabel, San Diego County 
are 
= 
illea saioesida var. arenicola (Heller) Nobs in Ferris, Contr. Dudley Herb. 5: 102. 1958. (Achillea 
crenicole Sagan: eps st 9 me ~ 1904: A. mill efolium var. maritima aay —, Fi. Pl. Calif. 1137. 1925; 
A, bor, subsp. a arnegie me Wash. Publ. No. 520: 299. 0.) Stems stout, 1-6 igh, 
epoch | Say nyo ecu sabe iste ys "8 yas well- ss oped rhizomes; root-system m ialy fibrous from the rhizomes but 
retaining J ‘strong central taproot; herbage Mes te nsely white-villous throughouts leaves oblanceolate, 10— 
long, the primary pinnae at right angles to wre rachis, secondary and tertia i densely crowded, fie ones to 
oblanceolate, fleshy, the tips mucronate; heads 5—6 mm. high, densely packed i ae und-topped corymbs, the ph ei aa 
argins light brown, Coastal dunes and sea bluffs; Del ca Co piece pet to Monterey County, Californ ype 
ma 
from a pee vo ee pide pf te <dsen vertical t apr root system ; herbage gray, ie s throughout; eave s 15-40 
cm. oe, linear- lanceolate, finely “dibeectéd into linear-lanceola te —— with white mucronate tips; heads 
5-6 mm. high, numerous, in — er -branched, round-topped corymbs, the elec gee rg Bi ‘. eenish 
whine. tie borders of psp oe po ercourses, Lower onoran Zone; Pisaia . Kings, Tulare, and Kern Counties, 
California. Type locality: near Tulare take, Tulare County. May- July. = oo7. 
Achillea millefolium L. var. millefolium. pase delicate, 2-6 dm. high, arising from slender rhizomes; a 
fibrous, arising from the entire rhizome system; herbage sparingly villo us; leaves Boas tencenlnite ™ 2 em. long, 
the ultimate leaf-segments short, poets sisuccuiate, all tending to oriented in cad agg the tips 
mucronate; heads numerous, n loose, flat-topped corymbs, the phyllary-m me pale. Native of 
preety abe Europe, basis rs be Javentive oy ‘ae isnde and fields st of the Cascade Mountains in Washi ingto 
and Oregon, possibly n Ca wave Type localitv: “‘Europe ae £7 
shilles millefoli ium var. borealis (Bone. B ayy pee Midl. Nat. 11: 268. 1929. st Wash Bab, 
ong. M Acad. St. Pétersb. VI. 2: 149. 1832; A. borealis on typica Keck, rnegie Inst. 
Re $20: 299, 1940.) Ste 3 a —4 dm. high, arisi "from slender rhizomes; reese a fibrous, over 
rhizome system; herbage "lack green, the stems tawny-villous; leaves linear-lanceolate, 5-20 cm. long, Pweg tis 
sected into acicular, spine-tipped segments; heads 5—6 mm. high, n dense, ro oe to pped conve. hand Frouth to 
iti t rin iron the ‘Abetitind Islands and Al 
margins dark gg sae mb mame black. A gaye teh y. rapghastd-enad g oh ie See tealie? Week oe Biles: 
ke. «x27. eh iety s commonly confused i in the Tieatere with = tetr: entoid, high mountain var. alpicola 
97. SANTOLINA L. Sp. Pl. 842. 1753. 
Aromatic, glabrous or tomentose shrubs or perennial herbs. Leaves alternate, apnematd 
toothed, lobed, or finely parted. Heads solitary at the ends of the branches, eradiate, many- 
i Lu 
oO : 
late, the phyllaries scarious on the margins or throughout, imbricated in 2-4 ay be 
ceptacle convex, chaffy. Disk-flowers tubular with a gradua ally expanding throat, 5-lol 
Anthers entire at base. St ve eras Vale truncate, penicillate. Achenes 3-5-angled 
sae cape lacking. [Derivation of na secu 
about & species, natives of a ae region. tons species, Santolina chamaecyparissus L. 
1. Santolina chamaecyparissus L. Lavender Cotton. Fig. 5672. 
Santolina coments cyparissus L. Sp. Pl. 842. 1753. 
Santolina incana Lam. FI. Franc. 2: 43. 1778. 
Snell much-branched, compact shrubs 2-5 dm. high, silvery short-tomentose throughout, 
