SUNFLOWER FAMILY 343 
Achenes in most species pe persed few species that sometimes or regularty have more pegged 
nerves occur in m Woutland: or maritime habitats, have the oe ——— < early 
so, and are not at all sivicy primes, 
. EvERIGERON 
Plants maritime and submaritime; stems — curved-ascending; heads large, hemispheric, the disk 14-35 mm. 
wide, the disk-corollas 4.7~ 7 mm. Ion 
Heads radiate, the rays about 9-15 mm. long; cauline leaves ample in reer specimens; oo and 
California. Dy glaucus. 
Heads discoid, the flowers all tubular and perfect; cauline leaves narrow, mi tly lance-linear so narrowly 
oblong, or the lower somewhat oblanceolate; Humboldt and Mendocino Counties, pra ies 
9; 
Plants cei Panam or submaritime | (save perhaps occasionally in E. sanctarum?); tah various tot mostly 
except in 
Cauline leaves ample, usually lasicnolate or broader, entire or toothed, never trilobed; phyllaries equal or 
subequal; achenes 2—7-nerve 
Seu at least when well developed: tall and erect (up to nearly 1 m, tall), somewhat Aster-like; 
achenes 2-7-nérved. 
Rays ee ely broad, y 2-4 wide hes mm, in E, coulteri, which ee the hairs of the 
volucre with Bora jo thy near the base); pappus simple or near 
Hairs - = ine lounee black accel rays mostly 2-4 mm. sc as whlté or colored; 
airy or gla 
Aubelbes 4—7-nerved; ledivee glabrous or occasionally hairy; involucre ‘mostly merely glandu- 
lar “oh sometimes hirsute or with the bracts more or less ciliate-margined but not 
hirsuite below and glandu a abov ve; disk-corollas mostly 4-6 m a ioe 
naa head) blades usually t to the petiole; cauline "tt various but rarel 
a thin and proc “clasping; rays beeen ny 6 sometimes white; widaeprend, 
t moderate to high elevations in the moun 
. E. peregrinus 
Basal leaf-blades abruptly contracted to the petiole; cauline teesak thin, conspicuously 
clasping; rays white; south side of Columbia River cm ee in Or eenen 
panne. 2—4-nerved; leaves hirsute; involucre hirsute below, glandular an, a t corollas 
ostly 3-4 mm. aaa: Olympic, Oregon Cascade, and Klamath ahh eaioes.. 
ceae. 
Hairs of ey involucre with black cross-walls near the base; rays wide, white; leaves 
hai achenes 2-nerved; mountains of northeastern etal Pe California’ and eastward. 
mm. wide or less; hairs of the lab gg if seenrnh: ‘witheas ‘black cross- 
Rays poly about 
walls; pappus, Pe Ta in E. phila delphi cus, mostly 1 
Rays sad excessively numerous, commonly about 75-150, about 1 mm. wide; disk-corollas mostly 
4-5 mm. long; achenes 2-4- nerved; true perennia als. 
Leaves mea or nearly so except for the ciliate gna stem Lago ag — the in- 
florescence or merely bearing a few scattered hairs; involucr ive: few or no long 
airs; widespread. . 
hai 
Leaves, stem, and involucre more or less long-hairy; Washington and ‘anaee : 
i: es Seren 
Rays very numerous, commonly 150-350 or more about 0.2-0.6 wide; di 
corollas mostly 2.5~3. ca mm, oat achenes 2. neecedi gv Be or dhs rere perennial; 
widespread, somewhat weedy. 7. E. philadelphicus. 
Plants low and often haete ae or ascending 0.5-3 dm. tall, scarcely Aster-like; achenes 2-nerved. 
e or nearly so; pappus-bristles straight. 
nd stem glabrous or feiatinihe above) somewhat pa sometimes with a few 
x eet ry a ag glutinous to glandular, sometimes with a few long hairs; Oregon to 
ern Calif 
th as distributed, the middle cauline about as e as the lower, — upper 
Leaves ‘con ara ably distrib Del Norte County, California, peek id adjacent Or aha 
Leaves inequably distributed, the basal ones obviously larger ae the few and wien es 
reduced cauline ones. 
urple; disk-corollas usually more or less puberulent at least below th 
Rays po middle 7 nvolucre ae glandular = not at all hairy; stem ordinarily white 
tabroes except directly under the ana where ep cnaceel Siskiyou Mountains 
of northwestern California cal sue t Orego 
12. EB. cervinus. 
te. 
R all hite; disk-corollas essentially glabrous; —— usually with a few 
1 "bal ro ordinarily with a few hairs or glands o = es Cascade and Klamath 
pec s of Oregon but more northern or eastern than . cervinus, 
. &. cascadensis, 
Leaves, involucre, and usually the stem with obvious long hairs as oe as stipitate-glandular; 
rays blue or purple; Cascade Mountains of Washington. 1“. re 
git. 
led for 
Basal leaves coarsely toothed or incised; pappus-bristles characteristically twisted and cur 
at least the upper half; Columbia River Gorge in Oregon and Washington. 
15. E. oreganus. 
11 developed, commonly linear or oblan ceolate, sometimes linear-oblon 
ee narrowly lance oblong (sometimes yi ag in E. caespitosus, which rete Ss an a, imbricate i rer ong 
in E. basalticus, which has the leaves ev mig tri prin at those of : eens OSHS, 
ane a ol other species, while narrow, somett not muc aller than the aca oe ones; gp Ses 
rved. 
’ 
mally 2-n 
Leaves, or many of them, trilobed or two to four times ; 
Stem fat, leafy, the cauline leaves more or ite gre trilobed; ier ag oe 
Stem scapose or subscapose; the cauline leaves if present few and much reduced, atl 5 Sader and 
entire. 
* The perhaps artificial section oer consisting of short-lived, mostly biennial species, is here for 
convenience submerged in Exeriger 
