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Aquatic and Wetland Vascular Plants of the Northern Great Plains

Erigeron L. -- Fleabane

Biennial to perennial herbs with simple, alternate leaves. Heads radiate, hemispheric, few to many in a terminal inflorescence; involucral bracts in 1 or 2 series, linear, equal or the outer ones a little shorter, hyaline at the tip and on the margins above, green in the middle and at the base; receptacle flat to slightly convex; outer 1-few rows of florets pistillate, with narrow, white to pink ligules 0.1-0.6 mm wide; disk florets perfect, their corollas yellow; style branches flattened, the appendages short, obtuse or acute. Achenes 2- to 4-nerved; pappus of 20-30 capillary bristles.

Lead	Characteristic	Go To
1	Leaves not clasping; rays inconspicuous.	E. lonchophyllus
1	Leaves auriculate-clasping; rays conspicuous.	E. philadelphicus

49. Asteraceae, the Aster Family

8. Erigeron L. -- Fleabane

1. Erigeron lonchophyllus Hook

2. Erigeron philadelphicus L. -- Philadelphia fleabane

Return to Family -- Asteraceae - The Aster Family
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Page Last Modified: Thursday, 03-Aug-2006 11:39:25 EDT
Menlo Park, CA [caww54]