Erechtites hieracifolia

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Erechtites hieracifolia
Erec hier-3.jpg
Photo by John R. Gwaltney, Southeastern Flora.com
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Order: Asterales
Family: Asteraceae ⁄ Compositae
Genus: Erechtites
Species: E. hieracifolia
Binomial name
Erechtites hieracifolia
(L.) Raf. ex DC.
Erec hier dist.jpg
Natural range of Erechtites hieracifolia from USDA NRCS Plants Database.

Common name: American burnweed

Taxonomic notes

Synonym: Erechtites hieracifolia var. hieracifoliaThe Plant List.org; E. hieracifolia var. intermedia Fernald; E. hieracifolia var. praealta (Rafinesque) Fernald; E. hieracifolia

Description

"Robust annual with erect, glabrous or slightly pubescent, solid stems, 0.4-3 m or more tall. Leaves alternate, elliptic to lanceolate, 5-20 cm long, 0.5-6.5 cm wide, acute to acuminate, irregularly serrate to dentate, unlobed or lobed, base cuneate to attenuate or upper stem leaves auriculate. Heads in panicles. Involucres cylindric, 10-20 mm long, 4-8 mm broad; bracts in 1 series or with a few small bracts at base. Disc 3-10 mm broad. Flowers discoid, lobes cream to pinkish, erect, 0.3-0.5 mm long. Nutlets brown, tapered from base to apex, 1.9-2.7 mm long, 0.4-0.7 mm broad, 10-ribbed, pubescent; pappus white, capillary, 10-14 mm long." [1]

Distribution

Ecology

Phenology

E. hieracifolia has been obseved flowering in March, June, July, and November.[2]

Seed dispersal

This species is thought to be dispersed by wind. [3]

Seed bank and germination

E. hieracifolia was found in the seed banks of bays dominated by herbaceous and shrub plants in western South Carolina. [4]

Pollination

The following Hymenoptera families and species were observed visiting flowers of Erechtites hieracifolia at Archbold Biological Station. [5]

Halictidae: Halictus poeyi

Leucospididae: Leucospis affinis

Megachilidae: Dianthidium floridiense

Vespidae: Leptochilus republicanus, Parancistrocerus bicornis, P. salcularis rufulus, Polistes dorsalis hunteri

Conservation and management

Cultivation and restoration

Photo Gallery

References and notes

  1. Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 1037. Print.
  2. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 8 DEC 2016
  3. Kirkman, L. Katherine. Unpublished database of seed dispersal mode of plants found in Coastal Plain longleaf pine-grasslands of the Jones Ecological Research Center, Georgia.
  4. Navarra, J. J. and P. F. Quintana-Ascencio 2012. Spatial pattern and composition of the Florida scrub seed bank and vegetation along an anthropegenic disturbance gradient. Applied Vegetation Science 15:349-358.
  5. Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.