Asclepias verticillata

Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Family:	APOCYNACEAE
Species:	Asclepias verticillata L.
Common Name:	Eastern Whorled Milkweed
Habitat:	Sandhills, prairies, rock outcrops, and roadside banks.
Associated Ecological Communities:	**
Growth Habit:	Herb
Duration:	Perennial
Category:	Vascular
USDA Symbol:	ASVE
Plant Notes:	Eastern Whorled Milkweed is a native herbaceous perennial in the Dogbane family (Apocynaceae). It can be found throughout Alabama. Eastern Whorled Milkweed occurs on sand hills, in prairies, on chalk outcrops, in cedar glades, and in dry, open woods. It is a perennial with a fibrous root system. Plants are often colonial with short, thin rhizomes. The stems are usually unbranched, 1-3 feet tall, pubescent in lines, and green or reddish brown in color. The leaves are sessile or short petiolate, whorled, 4-6 in number per node, linear, often revolute, and pubescent or glabrate (becoming glabrous with age). All parts of the plant exude a milky sap when damaged. The flowers are produced in umbels from the upper leaf axils. Each umbel has 7-20 pedicellate flowers. Individual flowers have 5 small, green sepals that are hidden by the reflexed petals when the flower is open. There are 5 strongly reflex greenish-white petals, and 5 hoods. The hoods have prominent horns that are strongly bent over the center of the flower. The hoods and horns are white in color. The fruit is a follicle. The seed are flat, oval, and brown in color. Each seed has a tuff of white hairs that aid in wind dispersal. Eastern Whorled Milkweed is sometimes available from wildflower nurseries or as seed. It prefers a well-draining soil in full or partial sun. It is tolerant of poor soils and drought once established. The foliage of Eastern Whorled Milkweed is a larval food source for Monarch butterflies.--A. Diamond
Taxonomic Notes:	**
Status:	Native
References:	**
Specimen:	View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

Family	APOCYNACEAE - Dogbane family
Genus	Asclepias
Species	Asclepias verticillata L. - Eastern Whorled Milkweed

Citation

Citation	Asclepias verticillata Linnaeus, Sp. Pl. 1: 217. 1753.
Basionym:	**
Type:	VIRGINIA: Without data (lectotype: LINN 310.38). Lectotypified by Woodson, Ann. Missouri Bot. Gard. 41: 68. 1954.

** Not applicable or data not available.

Synonyms

No synonyms exist for this species.

No synonyms exist for this species.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Baldwin, Barbour, Bibb, Blount, Bullock, Butler, Calhoun, Cherokee, Clarke, Clay, Cleburne, Colbert, Covington, Crenshaw, Cullman, Dallas, DeKalb, Etowah, Franklin, Geneva, Hale, Jackson, Jefferson, Lawrence, Lee, Macon, Madison, Marengo, Marion, Marshall, Mobile, Montgomery, Morgan, Pike, Randolph, Shelby, St. Clair, Talladega, Tuscaloosa, Wilcox, Winston

Herbaria represented by specimen data listed below: AMAL, AUA, JSU, SAMF, TROY, UNA, USAM, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No.	County	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
TROY000041095	Clay	29 Jun 2012	Brian R. Keener 7364	TROY Asclepias verticillata L.
UNA00038509	Autauga	16 Jul 1880	Charles Mohr s.n.	UNA Asclepias verticillata L.
TROY000001311	Butler	20 Aug 2005	Alvin R. Diamond 15659	TROY Asclepias verticillata Linnaeus
AUA000030446	Butler	20 AUG 2005	DIAMOND, JR., ALVIN R. 15659	AUA ASCLEPIAS VERTICILLATA L.
JSU120631	Lawrence	12 Aug 1974	R. D. Whetstone 3599	JSU Asclepias verticillata Linnaeus
AUA000030449	Cleburne	4 AUG 2005	HANSEN, CURTIS J. 1986	AUA ASCLEPIAS VERTICILLATA L.
JSU120619	Calhoun	25 Jul 1982	K. E. Landers s.n.	JSU Asclepias verticillata Linnaeus
AUA000030452	Franklin	7 AUG 1981	O'HALLORAN, K. 354	AUA ASCLEPIAS VERTICILLATA L.
UNA00038507	Colbert	12 Aug 1953	Roland M. Harper 4259	UNA Asclepias verticillata L.
USAM000001620	Mobile	11 Aug 1967	Michel G. Lelong 3554	USAM Asclepias verticillata Linnaeus
TROY000048676	Autauga	07 Aug 2018	Matthew R. Parker 1753	TROY Asclepias verticillata Linnaeus
JSU120617	Bibb	22 Jul 1982	R. D. Whetstone 11743	JSU Asclepias verticillata Linnaeus
AUA000030457	Pike	5 AUG 1994	DIAMOND, JR., ALVIN R. 9284	AUA ASCLEPIAS VERTICILLATA L.
UWAL0042871	Baldwin	28 Aug 2002	Larsen, H.S. 1061	UWAL Asclepias verticillata L.
TROY000037303	Bibb	27 May 2012	Brian R. Keener 7288	TROY Asclepias verticillata Linnaeus
UNA00038510	Clay	_ Jun 1896	Charles Mohr s.n.	UNA Asclepias verticillata L.
TROY000001310	Bullock	20 Aug 2002	Alvin R. Diamond 13620	TROY Asclepias verticillata Linnaeus
UWAL0011858	Clay	29 Jun 2012	Keener, Brian R. 7364	UWAL Asclepias verticillata Linnaeus
UWAL0042501	Bullock	28 Aug 2017	Horne, Howard E. 4177	UWAL Asclepias verticillata L.
JSU146210	Cleburne	18 Aug 1992	F. Hutchinson 857	JSU Asclepias verticillata Linnaeus
AUA000030443	Bullock	31 JUL 1970	MOORE, HAROLD D. 587	AUA ASCLEPIAS VERTICILLATA L.
UNA00038499	Tuscaloosa	12 Aug 1965	Rebecca Deramus 529	UNA Asclepias verticillata L.
AUA000030440	Autauga	14 JUN 1982	GUNN, SCOTT C. 712	AUA ASCLEPIAS VERTICILLATA L.
AMAL00005879	Blount	07 Aug 1998	Brian R. Keener 1427	AMAL Asclepias verticillata L.
UWAL0046417	Autauga	07 Aug 2018	Parker, Matthew R. 1753	UWAL Asclepias verticillata Linnaeus
JSU120624	Colbert	21 Jul 1996	R. D. Whetstone 18274	JSU Asclepias verticillata Linnaeus
AUA000030439	Autauga	29 JUL 1989	DIAMOND, JR., ALVIN R. 6180	AUA ASCLEPIAS VERTICILLATA L.
UWAL0030534	Covington	25 Aug 1991	Kral, R. 79667	UWAL Asclepias verticillata L.
AUA000030441	Autauga	10 JUL 1970	MOORE, HAROLD D. 331	AUA ASCLEPIAS VERTICILLATA L.
UNA00038511	Cullman	20 Jul 1895	Charles Mohr s.n.	UNA Asclepias verticillata L.
SAMF0004387	Shelby	12 Aug 2007	Howell, W. Mike s.n.	SAMF Asclepias verticillata Linnaeus
TROY000040691	Montgomery	24 Jul 2014	Alvin R. Diamond 25374	TROY Asclepias verticillata Linnaeus
AUA000030450	Crenshaw	24 JUL 1990	DIAMOND, JR., ALVIN R. 7051	AUA ASCLEPIAS VERTICILLATA L.
JSU120626	DeKalb	12 Sep 1986	R. D. Whetstone 15686	JSU Asclepias verticillata Linnaeus
USAM000001619	Baldwin	15 Jun 1974	Michel G. Lelong 7863	USAM Asclepias verticillata Linnaeus
JSU120627	Etowah	31 Jul 1994	L. M. Hodge 2920	JSU Asclepias verticillata Linnaeus
AUA000030454	Lee	7 JUL 1963	ROGERS, KENNETH E.	AUA ASCLEPIAS VERTICILLATA L.
AMAL00005882	Marion	25 Jul 2001	S. J. Threlkeld 1454	AMAL Asclepias verticillata L.
UWAL0000396	St. Clair	07 Sep 2008	Keener, Brian R. 4822	UWAL Asclepias verticillata L.
JSU120616	Bibb	16 Aug 1993	J. M. Ballard 3209	JSU Asclepias verticillata Linnaeus
UWAL0015719	Winston	07 Aug 2008	England, J. Kevin 0676	UWAL Asclepias verticillata Linnaeus
JSU120615	Bibb	31 Jul 1998	R. D. Whetstone 19633	JSU Asclepias verticillata Linnaeus
TROY000014083	Madison	01 Aug 1996	Steven J. Threlkeld 795	TROY Asclepias verticillata Linnaeus
UNA00038513	Cleburne	30 Jul 1896	Charles Mohr s.n.	UNA Asclepias verticillata L.
SAMF0004385	Jefferson	1948	McCullough, H. A. s.n.	SAMF Asclepias verticillata Linnaeus
USAM000001622	Franklin	26 Jun 1970	Robert Kral 39728	USAM Asclepias verticillata Linnaeus
UNA00038502	Cleburne	18 Aug 1979	L. J. Davenport 1549	UNA Asclepias verticillata L.
TROY000014471	Butler	06 Sep 2007	Alvin R. Diamond 18043	TROY Asclepias verticillata Linnaeus
JSU120621	Clay	19 Aug 1980	R. D. Whetstone 10202	JSU Asclepias verticillata Linnaeus
UWAL0014425	Colbert	26 Jun 2014	England, J. Kevin 4974	UWAL Asclepias verticillata Linnaeus
JSU120623	Cleburne	8 Aug 1983	Melanie G. Bussey 810	JSU Asclepias verticillata Linnaeus
USAM000001621	Mobile	04 Aug 1967	Michel G. Lelong 3478	USAM Asclepias verticillata Linnaeus
JSU120625	DeKalb	1 Oct 1994	D. D. Spaulding 6634	JSU Asclepias verticillata Linnaeus
SAMF0004388	Clay	24 Jul 2014	Davenport, L. J. 5637	SAMF Asclepias verticillata Linnaeus
TROY000042714	Covington	09 Aug 2015	Alvin R. Diamond 26689	TROY Asclepias verticillata Linnaeus
JSU120620	Clay	2 Aug 1992	J. M. Ballard 423	JSU Asclepias verticillata Linnaeus
UWAL0000393	Lawrence	01 Aug 2007	England, J. Kevin 0642	UWAL Asclepias verticillata L.
JSU120630	Jackson	5 Aug 1994	R. D. Whetstone s.n.	JSU Asclepias verticillata Linnaeus
UWAL0011906	Clarke	15 Aug 2012	Keener, Brian R. 7451	UWAL Asclepias verticillata Linnaeus
UNA00064555	Butler	20 Aug 2005	Alvin R. Diamond 15659	UNA Asclepias verticillata L.
UNA00063022	Lawrence	10 Aug 2003	D. D. Spaulding 12023	UNA Asclepias verticillata L.
UWAL0016370	Montgomery	24 Jul 2014	Diamond, Alvin R. 25374	UWAL Asclepias verticillata Linnaeus
UWAL0000394	Marengo	21 Aug 2008	England, J. Kevin 0944	UWAL Asclepias verticillata L.
UNA00038505	Franklin	26 Jun 1970	R. Kral 59728	UNA Asclepias verticillata L.
UWAL0016135	DeKalb	13 Jul 2014	Spaulding, Dan 14060	UWAL Asclepias verticillata L.
AMAL00019444	Calhoun	04 Sep 1994	D.D. Spaulding 6166	AMAL Asclepias verticillata L.
UWAL0049264	Bullock	02 Jun 2017	Horne, Howard E. 3924	UWAL Asclepias verticillata Linnaeus
JSU144408	Calhoun	02 Jun 1993	F. Hutchinson 1697	JSU Asclepias verticillata Linnaeus
AUA000030445	Butler	2 AUG 1985	DIAMOND, JR., ALVIN R. 1337	AUA ASCLEPIAS VERTICILLATA L.
UWAL0016940	Morgan	13 Sep 2009	England, J. Kevin 2200	UWAL Asclepias verticillata Linnaeus
JSU120618	Calhoun	18 Jul 1999	D. D. Spaulding 10666	JSU Asclepias verticillata Linnaeus
AUA000030455	Lee	1 AUG 1969	ELLIS, H. C. 118	AUA ASCLEPIAS VERTICILLATA L.
UWAL0030165	Wilcox	21 Aug 2014	Webb, Wayne K. s.n.	UWAL Asclepias verticillata Linnaeus
JSU120629	Franklin	6 Aug 1993	J. M. Ballard 3159	JSU Asclepias verticillata Linnaeus
AMAL00021552	DeKalb	13 Jul 2014	Daniel D. Spaulding 14060	AMAL Asclepias verticillata Linnaeus
TROY000001309	Barbour	18 Aug 1977	Robert Kral 60773	TROY Asclepias verticillata Linnaeus
UWAL0008899	Randolph	20 Aug 2011	Davenport, L.J. 4764	UWAL Asclepias verticillata L.
UWAL0000819	Franklin	16 Aug 2009	England, J. Kevin 2165	UWAL Asclepias verticillata L.
JSU120633	Lawrence	12 Aug 1974	T. A. Atkinson 644	JSU Asclepias verticillata Linnaeus
UNA00038508	Clay	31 Jul 1896	Charles Mohr s.n.	UNA Asclepias verticillata L.
TROY000014082	Lawrence	10 Aug 2003	Daniel D. Spaulding 12023	TROY Asclepias verticillata Linnaeus
UNA00038504	Hale	30 Aug 1979	L. J. Davenport 1555	UNA Asclepias verticillata L.
TROY000014518	Crenshaw	07 Sep 2008	Alvin R. Diamond 19910	TROY Asclepias verticillata Linnaeus
JSU120638	Shelby	20 Jul 1993	R. D. Whetstone s.n.	JSU Asclepias verticillata Linnaeus
UWAL0047458	Clay	17 Aug 2018	Keener, Brian R. 10835	UWAL Asclepias verticillata L.
AMAL00016557	Butler	20 Aug 2005	A. R. Diamond 15659	AMAL Asclepias verticillata L.
UWAL0017369	Franklin	11 Jul 2009	England, J. Kevin 2114	UWAL Asclepias verticillata Linnaeus
JSU120636	Marshall	11 Jun 1994	D. D. Spaulding 5496	JSU Asclepias verticillata Linnaeus
AUA000030448	Cleburne	25 JUN 1967	EICHLIN, THOMAS D. 55	AUA ASCLEPIAS VERTICILLATA L.
UWAL0036393	Marshall	12 Aug 2017	England, J. Kevin 8369	UWAL Asclepias verticillata Linnaeus
JSU120639	Talladega	2 Sep 1994	J. M. Ballard 4857	JSU Asclepias verticillata Linnaeus
UWAL0000395	Marengo	04 Sep 2008	England, J. Kevin 1015	UWAL Asclepias verticillata L.
JSU120622	Clay	5 Sep 1982	R. D. Whetstone 12140	JSU Asclepias verticillata Linnaeus
UWAL0012092	Dallas	15 Jun 2012	Keener, Brian R. 7312	UWAL Asclepias verticillata Linnaeus
UNA00038512	Autauga	17 Jul 1880	Charles Mohr s.n.	UNA Asclepias verticillata L.
TROY000001312	Pike	29 Aug 1999	Alvin R. Diamond 11596	TROY Asclepias verticillata Linnaeus
AUA000030453	Geneva	21 SEP 1990	DIAMOND, JR., ALVIN R. 7133	AUA ASCLEPIAS VERTICILLATA L.
AUA000030451	DeKalb	17 MAY 1969	CHITWOOD, JOHN C.	AUA ASCLEPIAS VERTICILLATA L.
JSU120632	Lawrence	12 Aug 1974	R. D. Whetstone 3599	JSU Asclepias verticillata Linnaeus
AUA000030447	Cherokee	24 AUG 1981	HENDERSON, T. 446	AUA ASCLEPIAS VERTICILLATA L.
JSU120628	Etowah	23 Jun 1994	L. M. Hodge 2718	JSU Asclepias verticillata Linnaeus
AUA000030456	Macon	8 AUG 1969	OWENS, JAMES R. 129	AUA ASCLEPIAS VERTICILLATA L.
AMAL00005881	Madison	01 Aug 1996	S. J. Threlkeld 795	AMAL Asclepias verticillata L.
TROY000048722	Autauga	08 Jun 2017	Matthew R. Parker 927	TROY Asclepias verticillata Linnaeus
JSU120634	Macon	30 Jun 1973	G. H. Crance 35	JSU Asclepias verticillata Linnaeus
UWAL0014513	Cleburne	02 Jul 2010	England, J. Kevin 2585	UWAL Asclepias verticillata Linnaeus
JSU120637	Morgan	27 Jun 1996	R. D. Whetstone 17875	JSU Asclepias verticillata Linnaeus
AUA000030442	Bibb	1 OCT 1977	SESSLER, ANN H. 1934	AUA ASCLEPIAS VERTICILLATA L.
AMAL00021748	Franklin	11 Jul 2009	J. Kevin England 2114	AMAL Asclepias verticillata Linnaeus
UWAL0042872	Baldwin	22 Sep 2008	Larsen, H.S. 1643	UWAL Asclepias verticillata L.
TROY000042882	Wilcox	21 Aug 2014	Wayne K. Webb s.n.	TROY Asclepias verticillata Linnaeus
UNA00054574	Blount	7 Aug 1998	Brian R. Keener 1427	UNA Asclepias verticillata L.
AMAL00002290	Colbert	22 Aug 2013	T. Wayne Barger FH-107	AMAL Asclepias verticillata L.
UWAL0010237	Bibb	27 May 2012	Keener, Brian R. 7288	UWAL Asclepias verticillata L.
AMAL00008625	Lawrence	10 Aug 2003	D.D. Spaulding 12023	AMAL Asclepias verticillata L.
JSU144412	Cleburne	04 Jul 1993	F. Hutchinson 1706	JSU Asclepias verticillata Linnaeus
AUA000030444	Bullock	31 JUL 1970	MOORE, HAROLD D. 579	AUA ASCLEPIAS VERTICILLATA L.
UWAL0017210	Lawrence	15 Jul 2014	England, J. Kevin 5104	UWAL Asclepias verticillata Linnaeus
JSU120635	Marshall	23 Jul 1994	D. D. Spaulding 6750	JSU Asclepias verticillata Linnaeus
AUA000030438	Autauga	14 JUL 1982	GUNN, SCOTT C. 933	AUA ASCLEPIAS VERTICILLATA L.
JSU120596	Etowah	14 Jun 1969	Jan Cofield s.n.	JSU Asclepias verticillata Linnaeus
UWAL0035256	Bibb	21 May 2012	Cobb, Richard s.n.	UWAL Asclepias verticillata Linnaeus
JSU146115	Calhoun	30 Sep 1992	F. Hutchinson 1028	JSU Asclepias verticillata Linnaeus
SAMF0004386	Randolph	20 Aug 2011	Davenport, L. J. 4764	SAMF Asclepias verticillata Linnaeus
UWAL0009194	Colbert	21 Aug 2011	Keener, Brian R. 6649	UWAL Asclepias verticillata L.

View a List of All Ecological Communities

For more information, contact: Brian R. Keener, Ph.D.

Data last modified: 1/20/2021

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Citation Information:

Keener, B. R., A.R. Diamond, L. J. Davenport, P. G. Davison, S. L. Ginzbarg, C. J. Hansen, C. S. Major, D. D. Spaulding, J. K. Triplett, and M. Woods. 2021. Alabama Plant Atlas. [S.M. Landry and K.N. Campbell (original application development), Florida Center for Community Design and Research. University of South Florida]. University of West Alabama, Livingston, Alabama.

Data, text, and images licensed under a Creative Commons Attribution-NoDerivs 3.0 Unported License.

Asclepias verticillata

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Classification

Citation

Synonyms

Specimens and Distribution