Erigeron philadelphicus L.
Source: USDA Plants_111306
Family: Asteraceae
Philadelphia Fleabane,  more...
[Erigeron scaturicola ]
Erigeron philadelphicus image
Annuals, biennials, or short-lived perennials, 4-80 cm; fibrous-rooted, caudices simple. Stems erect (green proximally, leafy to arrays), hirsuto-villous to villous proximally, loosely strigose to sparsely hirsute distally, minutely glandular. Leaves basal (persistent or withering by flowering) and cauline; basal blades oblanceolate to obovate, (15-)30-110(-150) × 10-25(-40) mm, margins shallowly crenate to coarsely serrate or pinnately lobed, faces sparsely hirsute to villous, eglandular; cauline blades oblong-oblanceolate to lanceolate, gradually reduced distally (bases clasping to auriculate-clasping). Heads (1-)3-35 usually in corymbiform arrays (ultimate branches arising near stem tips). Involucres 4-6 × 6-15 mm. Phyllaries in 2-3 series (sometimes basally connate), hirsuto-villous to sparsely hirsute or glabrous, sometimes minutely glandular. Ray florets 150-250(-400); corollas usually white, sometimes pinkish, 5-10 mm, laminae not coiling or tardily coiling. Disc corollas 2.1-3.2 mm. Cypselae 0.6-1.1 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 15-20(-30) bristles.
Biennial to short-lived perennial 2-7 dm, pubescent with long, spreading hairs, varying to subglabrous; basal lvs narrowly oblanceolate to obovate, coarsely crenate-toothed or lobed, rounded above, seldom over 15 נ3 cm; cauline lvs clasping, mostly oblong or ovate, ±reduced; heads 1-many; invol 4-6 mm, ±hirsute with flattened hairs, or subglabrous; disk 6-15 mm wide; rays mostly 150-400, 5-10 mm, 0.5 mm wide or less; deep pink or rose-purple to white; disk-cors 2.5-3.2 mm; achenes 2-nerved; pappus of ca 20-30 bristles; 2n=18. Various habitats, widespread in N. Amer., and throughout our range, somewhat weedy, varying in size with the habitat. (E. purpureus; E. provancheri)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Erigeron philadelphicus image
Erigeron philadelphicus image
John Hilty  
Erigeron philadelphicus image
Steven J. Baskauf  
Erigeron philadelphicus image
Steven J. Baskauf  
Erigeron philadelphicus image
Barry Breckling  
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Steven J. Baskauf  
Erigeron philadelphicus image
Steven J. Baskauf  
Erigeron philadelphicus image
Zoya Akulova  
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Steven J. Baskauf  
Erigeron philadelphicus image
Steven J. Baskauf  
Erigeron philadelphicus image
Zoya Akulova  
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
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Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image
Erigeron philadelphicus image