Asclepias verticillata

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Asclepias verticillata
Asclepias verticillata Gil.jpg
photo by Gil Nelson
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Order: Gentianales
Family: Asclepiadaceae
Genus: Asclepias
Species: A. verticillata
Binomial name
Asclepias verticillata
L.
ASCL VERT dist.jpg
Natural range of Asclepias verticillata from USDA NRCS Plants Database.

Common names: Whorled Milkweed

Description

Distribution

It is found from Massachusetts, south to Texas, east to Florida, and west to Arizona (Weakley 2015).

Ecology

Habitat

Native upland pine and pine-hardwood communities, loblolly pine plantations (Ultisols), borders of wetland depressions within pine communities, sandhills and sand ridges, (Entisols), open calcareous glades, bluffs along Apalachicola River (FSU Herbarium). It can be found in bluestem prairie (Hover and Bragg 1981). It increases with spring burning (Hover and Bragg 1981). It is a warm-season grass (Hover and Bragg 1981). Can occur in areas with soil disturbance (FSU Herbarium). Thrives in frequently burned areas and flowers within two months of burning in the growing season (Robertson observation). Tolerates full sunlight to partial shade. Tolerates moist to xeric conditions but seems to be limited to sandy or calcareous soil. Found barrens of thin soils of rock outcrops (mafic rocks), also in woodlands and sandhills (Weakley 2015) and in flatwoods (Wunderlin and Hansen 2011).

Phenology

It flowers and fruits from April to September (FSU Herbarium; Weakley 2015). It resprouts and flowers within a few weeks of being burned from early spring through summer, but it also flowers in years when it is not burned up to at least five years following fire, primarily in July and August (KMR[1]).

Seed dispersal

Seed bank and germination

Fire ecology

Pollination

Use by animals

Diseases and parasites

Conservation and Management

Cultivation and restoration

Photo Gallery

Asclepius verticillata KMR.jpg

References and notes

Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014.

Hover, E. I. and T. B. Bragg (1981). "Effect of season of burning and mowing on an eastern Nebraska Stipa-Andropogon prairie." American Midland Naturalist 105: 13-18.

KMR

Weakley, Alan S. Flora of the Southern and Mid-Atlantic States: Working Draft of 21 May 2015. University of North Carolina Herbarium (NCU). PDF. 933.

Wunderlin, Richard P. and Bruce F. Hansen. Guide to the Vascular Plants of Florida. Third edition. 2011. University Press of Florida: Gainesville/Tallahassee/Tampa/Boca Raton/Pensacola/Orlando/Miami/Jacksonville/Ft. Myers. 271. Print.

  1. KMR observations at Pebble Hill Plantation Fire Plots near Thomasville, GA.