374 COMPOSITAE 
E. annuus. Basal leaves mostly oblanceolate or ean tapering to the petiole, entire or toothe rs 
the blade and petiole up to cm. long an m. wide, often deciduous; cauline leaves line: 
to lanceolate, becoming — entire; Mc or the fre and sometimes even the middle ones slightly 
long; syle-appendages Bhatt, ate about 0.05 mm. lor ng; pappus double, the outer of sioner saat 
scales, vind of 10-15 very ieauitt ct Mis aivekes wanting from the ray-flowers; achenes 2- 
nerved, h ‘ogg 
Seats over most of the United States aot ook pcoanar! toe pa “a — i ea — E. annuus, sometim 
outa in relatively undisturbed habitats such a n from Washington to 
central California. Type locality: Pennsylva ro y Ree 
rigeron strigosus var. eet ls Bhs & wax ) Fernald, arene 44: 340. 1942. (Erigeron ramo- 
sus var. septentrionalis Fern. & Wie a 15: 60. 1913.) Foliage a little more ample than in typical E£. 
strigosus but much less so than in E. re shed up to 5 mm. high, its hairs long ane flattened, shiny, over 
1 mm. long; hairs of the stem ae pee peso iow except sercagne ae on eg upper part of the stem and in the 
inflorescence, or the stem sometimes nearly glabrous. Chiefly in south n Canada and adjacent United States, 
where apparently constituting a self-perpetuating natural ie aber ‘at. in rst grades more with E. strigosus than 
with E. annuus; similar a from elsewhere in the range of E. strigosus (including our area) may repre- 
sent recent hybrids. Patheg Pa: Harry‘s River, alg wfo saauiie nd. 
y oth E. and E. osus are commonly apomictic, but there is evidently some sexual reproduction 
as wel 
61. Erigeron lonchophyllus Hook. Short-rayed Daisy. Fig. 5642. 
— reroute] cas Fl. Bor. Amer. 2: 18. 1834. 
Erigero ar. min Fnac loc. cit. 
Weites raha eae Sg sensu gin r. authors, perhaps not sce ex fe Prod. 5: 291. 1836. 
Erigeron racemosus Nutt. Trans. haa . Phil. Soc. Tt, 72 
ee minor Rydb. Bull. Torrey Club ee 295. 1897. 
Erigero Clem. & Clem. ocky Mt. <e or 1914. 
Teisenta racemosa Lunell, Amer. Midl. ie: 5: 60. 19 
Weak-rooted hee or short-lived Ak erect, (2)10-60 cm. tall, oe & ease he pe 
hirsute or the lea glabrate. Basal leaves mostly oblanceolate, up to . long and 12 m 
wide, the cauline oh inear and often elongate; heads solitary a ohn se i pe o 
rather many, arly erect peduncles ayy : ] ones at least equaled or 
surpassed by their subtending leaves ; invol 9 mm. high, sparsely or moderately hirsute, not 
glandular; phyllaries thin, light green, commonly pu crplish near the sharply acute or acuminate 
but scarcely attenuate tip, usually - sips 8 wo ; rays numerous ee inconspi , 2-3 mm 
long, m. wide, white r sometimes gona ere ay only slightly surpassing the disk; 
disk-corolls °3.5-5.0 m m. long ; enous o of 20-30 slender, generally nwhite bristles, evidently sur- 
passing the sdiskccorollas, sometimes with a few sri and inconspicuous, short, outer setae; 
paved 2-nerved, sparsely hirsute. 
and Boreal Zones; Alaska ta. be ecea n the western na Pag ya to saying ts New Mexico, niet thing: ’ 
nd southern California; in ou: ge occurring hae th f Washington an egon, mostly 
not extending west of the summits > agi erly wi nee 9 ornia thro _ the Sierra Nevada and adjacent easterly 
62. Erigeron acris L. var. asteroides (Andrz. ex Bess.) DC. Northern Daisy. 
Fig. 5643 
Erigeron bah aiepale Muell. Fl. Dan. p/. 874. 1782. 
Erigeron asteroides Andrz. ex — Enum. Pl. Voth. $3; 1822; 
iY ot 
Erigeron acris var. phe cena rere orges Fl. 1: 562. 1861. 
Erigeron — var. kamtschaticus Hara, Rhodora 41: 389. 1939. 
Biennial or Mo a with a short, simple or slightly branched caudex, 3-8 dm. tall; 
herbage subgla i preading-hirsute, becom ming evidently glandular in the inflorescence. 
= sal Cees mostly eGle ABs onc, up to 15 cm. long and 12 mm. wide, seldom much tufted ; cauline 
eaves most 
* . * * . m. 
—. sometimes wi ith a few inconspicuous, short, outer setae; 
ocky pla n the mountains, Boreal ‘ 
naar Color, Fo sctnan — a rh Sh agp De rience anata ora to northern Oregon, northern 
acris var. débilis A aie Syn. Fl. N. Amer. 12: 220. 1884 nn Eri rigeron nivalis Nutt. Trans. 
Amer. Phil. Soc, 11.7: 311. iBs0: E. jucundus Greene, Pittonia 3: 165. 1897 E. debilis Rydb. M N. 
° y' em. 
Bot. Gard. 1: 408. 1900.) Plants 0.2-3 dm tall, the stem often curved at the base; leaves relatively wider than 
