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Asteraceae
Eupatorium

not marked as a favorite taxon Eupatorium pubescens Muhlenberg ex Willdenow. Common name: Inland Roundleaf Thoroughwort, Inland Roundleaf Eupatorium. Phenology: Jul-Sep. Habitat: Forests and woodlands, woodland edges, roadbanks. Distribution: Primarily in the Appalachians and adjacent provinces, ranging from Maine west to Ohio, south to n. Georgia, n. Alabama, Arkansas and Louisiana; the distribution, abundance, and phenology of E. pubescens need additional study because of frequent lumping with E. rotundifolium.

Glossary (beta!)

Origin/Endemic status: Native

Taxonomy Comments: Where growing together, E. pubescens apparently flowers about a month earlier than E. rotundifolium. This taxon appears to be a stabilized polyploid complex originating from hybridization of E. rotundifolium and (perhaps) E. sessilifolium; in that it now functions as a more-or-less independent evolutionary lineage, with distinctive morphology, habitat, and distribution, it is here treated as a species.

Synonymy ⓘ: = F, NE, NY, POWO, Tat, Va, WV; = Eupatorium rotundifolium L. var. ovatum (Bigelow) Torr. — Ar, C, FNA21, G, K1, K4, NS, Oh3, Pa, SE1, W, Cronquist (1985); < Eupatorium pubescens Muhl. ex Willd. — S; < Eupatorium rotundifolium L. — GW2; < Eupatorium rotundifolium L. ssp. ovatum (Bigelow) Montgom. & Fairbrothers — Montgomery & Fairbrothers (1970); < Eupatorium rotundifolium L. var. ovatum (Bigelow) Torr. — RAB. Basionym: Eupatorium pubescens Muhl. ex Willd. 1803

Links to other floras: = Eupatorium rotundifolium var. ovatum - FNA21

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: FAC (taxonomic split from wetland indicator species)
  • Great Plains: FAC (taxonomic split from wetland indicator species)
  • Midwest: FAC (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: FAC (taxonomic split from wetland indicator species)

Heliophily ⓘ: 7

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image #1 of Eupatorium pubescens© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #2 of Eupatorium pubescens© Gary P. Fleming | Original Image ⭷
image #3 of Eupatorium pubescens© Gary P. Fleming | Original Image ⭷
image #4 of Eupatorium pubescens© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #5 of Eupatorium pubescens© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #6 of Eupatorium pubescens© Joey Shaw source | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect perennial of dry woodlands, woodland clearings and edges and road banks.

Stems: Stems sparsely branched above, hairy.

Leaves: Leaves opposite, sessile, oval with pointed tips and slightly rounded base, 1 1/2-2 times long as wide, the principal pair of lateral veins diverging above the base of the midrib, sharp-toothed, very hairy above and hairy beneath on veins.

Inforescence:

Flowers: Composite flowers (heads) arranged in flattish clusters at branch tips, the branches and stalks hairy; heads white, consisting of 5 tiny, tubular florets. 2 or 3 series of tiny, narrow bracts surround the base of each head.

Fruits:

Comments:

Height: 1-4 ft.

plant sale text:

bloom table text:

description: Erect perennial of dry woodlands, woodland clearings and edges and road banks.

stems: Stems sparsely branched above, hairy.

leaves: Leaves opposite, sessile, oval with pointed tips and slightly rounded base, 1 1/2-2 times long as wide, the principal pair of lateral veins diverging above the base of the midrib, sharp-toothed, very hairy above and hairy beneath on veins.

inflorescence:

flowers: Composite flowers (heads) arranged in flattish clusters at branch tips, the branches and stalks hairy; heads white, consisting of 5 tiny, tubular florets. 2 or 3 series of tiny, narrow bracts surround the base of each head.

fruits:

comments:

cultural notes:

germination code:

native range: