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
Show parent genus | Show parent in key(s)
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW
- Eastern Mountains and Piedmont: FACW
- Northcentral & Northeast: FACW
Heliophily ⓘ: 8
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.
© 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
See something missing or incorrect about Eupatorium pilosum? Let us know here:
- Please include your name and if possible, email in case when need to clarify what you wrote.
- If you opt out of including email, please be as specific as possible (e.g., which photo is incorrect?)
- Please do not submit questions asking to identify plants or about horticultural topics (e.g., how do I control an invasive plant in my garden?). Instead, those questions can be submitted here for the Carolinas region only.
- Please do not send us feedback about unkeyed species as this work is ongoing.
- Please allow time for flora edits to show in our next data release. We greatly appreciate your feedback but may require extra time to research complicated taxonomic issues.
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
0 unsaved edits on this page.