Eupatorium pilosum Walter. Common name: Ragged Eupatorium. Phenology: Aug-Oct. Habitat: Longleaf pine savannas, bogs, other wetlands, other moist areas, but also sometimes in surprisingly dry habitats, such as mesic and dry-mesic woodlands and woodland edges. Distribution: MA south to c. peninsular FL, west to KY, c. TN, and MS; reports from w. LA need checking.
Origin/Endemic status: Native
Taxonomy Comments: E. pilosum is a species distinct from E. rotundifolium. There remains interesting morphologic and ecological variation included within this taxon needing careful study.
Synonymy ⓘ: = C, F, Fl7, FNA21, GW2, K4, NE, NY, Pa, RAB, Tn, Va, WH3, WV, Cronquist (1985), Montgomery & Fairbrothers (1970), Schilling & Schilling (2015); = Eupatorium rotundifolium L. var. saundersii (Porter) Cronquist — G, SE1, W; = Eupatorium verbenaefolium Reichard — S, Tat. Basionym: Eupatorium pilosum Walter 1788
Links to other floras: = Eupatorium pilosum - FNA21
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW
- Eastern Mountains and Piedmont: FACW
- Northcentral & Northeast: FACW
Heliophily ⓘ: 8
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© Gary P. Fleming | Original Image ⭷
© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷
© Alan Weakley source | Original Image ⭷
© Alan Weakley source | Original Image ⭷
© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
© Scott Ward | Original Image ⭷
© Alan Weakley source | Original Image ⭷
© Jay Horn source | Original Image ⭷
© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward; E. rotundifolium (left), E. pilosum (right) source CC-BY | Original Image ⭷Feedback
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Horticultural Information
Intro: Erect perennial of savannas, bogs and other moist areas.
Stems: Stems with 1 or 2 branches near the top, sometimes tinged purplish-red, hairy and often rough.
Leaves: Leaves opposite, sessile to short-petiolate, oval to oblong-lance-shaped, 1 1/4-3 1/2 in. long, with prominent mid-vein, coarsely toothed and often with purplish margins.
Inforescence:
Flowers: Composite flowers (heads) arranged in short-branched, flattish clusters at stem tips; heads white, 1/4 in. wide, consisting of 5 tiny, tubular disk florets with protruding styles. 2 or 3 series of narrow bracts surround the base of each head.
Fruits:
Comments:
Height: 1-5 ft.
plant sale text:
bloom table text:
description: Erect perennial of savannas, bogs and other moist areas.
stems: Stems with 1 or 2 branches near the top, sometimes tinged purplish-red, hairy and often rough.
leaves: Leaves opposite, sessile to short-petiolate, oval to oblong-lance-shaped, 1 1/4-3 1/2 in. long, with prominent mid-vein, coarsely toothed and often with purplish margins.
inflorescence:
flowers: Composite flowers (heads) arranged in short-branched, flattish clusters at stem tips; heads white, 1/4 in. wide, consisting of 5 tiny, tubular disk florets with protruding styles. 2 or 3 series of narrow bracts surround the base of each head.
fruits:
comments:
cultural notes:
germination code:
native range: eastern United States
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