Eupatorium leptophyllum

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Eupatorium leptophyllum
Eupa lept.jpg
Photo by Dennis Girard, Atlas of Florida Vascular Plants
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Order: Apiales
Family: Apiaceae ⁄ Umbelliferae
Genus: Eupatorium
Species: E. leptophyllum
Binomial name
Eupatorium leptophyllum
DC.
Eupa lept dist.jpg
Natural range of Eupatorium leptophyllum from USDA NRCS Plants Database.

Common name: False fennel

Taxonomic notes

Synonyms: Eupatorium capillifolium var. leptophyllum (A.P. de Candolle) H.E. Ahles.[1]

Varieties: none.[1]

The genus Eupatorium honors a first century Greek king who discovered an antidote to a poison derived from this family.[2]

Description

A description of Eupatorium leptophyllum is provided in The Flora of North America.

It is a short lived perennial with glabrous stems that reaches around 1 to 2 meters tall.[3] The young stems have few hairs and the leaves are finely divided.[4]

Distribution

Ecology

Habitat

E. leptophyllum has been found in sandy-peaty soils, the underside of pond-cypress stands, lake bottoms, broad and marshy shorelines, flatwood ponds, and pine and oak forests. It is also found in disturbed areas including wet roadside depressions, damaged slash pine forest, artificial ponds, and weedy fields. Associated species: Iva microcephala, Cladium jamaicense, E. capillifolium, E. compositifolium, Andropogon, Eleocharis robbinsii, Fuirena pumila, Habeneria repens, Triadenum virginicum, Ludwigia, Rhynchospora, Xyris. Bidens, Sagittaria, Nuphar, Polygonum pensylvaticum, Hypericum, Ilex myrtifolia, Eupatorium leptophyllum, and Nyssa biflora.[5][6]

Phenology

Have been observed flowering from August to November. [7]

Pollination

The following Hymenoptera families and species were observed visiting flowers of Eupatorium leptophyllum at Archbold Biological Station: [8]


Halictidae: Lasioglossum nymphalis, L. placidensis

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draft of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. [South Carolina Native Plant Society]Accessed: December 11, 2015
  3. [[1]]Accessed: December 11, 2015
  4. [[2]] Accessed: December 7, 2015
  5. Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: May 2021. Collectors: Loran C. Anderson, Wm. G. Atwater, Wilson Baker, H.A. Davis, J.P. Gillespie, R.K. Godfrey, R.D. Houk, C. Jackson, Robert L. Lazor, Holly Maurushat, Sidney McDaniel, Anne Johnson R.E. Perdue, Paul O. Schallert, and Cecil R. Slaughter. States and counties: Florida: Bay, Dade, Dixie, Franklin, Gilchrist, Jackson, Lake, Leon, Madison, Marion, Nassau, Okaloosa, Putnam, Seminole, Suwannee, Taylor, Volusia, Wakulla, Walton, Washington. Georgia: Baker.
  6. Carr, S.C., K.M. Robertson, and R.K. Peet. 2010. A vegetation classification of fire-dependent pinelands of Florida. Castanea 75:153-189.
  7. Cite error: Invalid <ref> tag; no text was provided for refs named FSU Herbarium
  8. Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.