Asclepias viridis

Family:APOCYNACEAE
Species:Asclepias viridis Walter
Common Name:Green Milkweed; Green Antelope Horn
Habitat:Prairies, pastures, and roadsides. Usually on basic soils.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:ASVI2
Plant Notes:Green Antelope Horn is a native herbaceous perennial in the Dogbane family (Apocynaceae). It is native to the Black Belt region of central Alabama, the Tennessee Valley, and other areas underlain by limestone. Green Antelope Horn occurs in prairies, in pastures, in cedar glades, on roadsides, and in other areas with basic soils. It is a perennial with a tap root. One to five decumbent or ascending stems are produced from each crown. The stems are thick, green or reddish brown in color, 12-30 inches in height, and glabrous. Leaves are alternate, elliptic to lanceolate in outline, short petiolate, entire or with wavy margins, glabrous, with a rounded tip. Flowers are produced in a terminal umbel. Individual flowers have 5 green corolla lobes and 5 purple hoods. Horns are lacking. The fruit is a follicle that splits to release flat, brown, round seed with a tuff of long white hairs that act as a parachute and aid in wind dispersal of the seed. Green Antelope Horn is a larval food plant for the Monarch Butterfly. It is available from companies that sell wildflower seed. The seedlings have long taproots and need to be planted in the garden or in deep pots. The seeds must be cold stratified or planted outside in the autumn. Green Antelope Horn requires full sun and a clay soil. It is drought tolerant and deer resistant. During World War II the seed of this and other common milkweed species were collected by school children for their white silky filaments or floss which were used as insulation in flight jackets.--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

FamilyAPOCYNACEAE - Dogbane family
Genus Asclepias
Species Asclepias viridis Walter - Green Milkweed; Green Antelope Horn

Citation

Citation ASCLEPIAS VIRIDIS Walter, Fl. Carol. 107. 1788.
Basionym: **
Type: GEORGIA: Glynn Co.: Near Thalmann, 3 May 1904, Harper 2184 (neotype: GH; isoneotypes: MO, NY, US). Neotypified by D. B. Ward, J. Bot. Res. Inst. Texas 1: 1097. 2007.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Acerates paniculata Acerates paniculata (Nuttall) Decaisne, in de Candolle, Prodr. 8: 521. 1844.Anantherix paniculata Nuttall 1837. 
Anantherix grandiflora Anantherix grandiflora Rafinesque, New Fl. 4: 59. 1838 ("1836"). ARKANSAS
Anantherix ovata Anantherix ovata Rafinesque, Atl. J. 146. 1832.  
Anantherix paniculata Anantherix paniculata Nuttall, Trans. Amer. Philos. Soc., ser. 2. 5: 203. 1837. ARKANSAS
Anantherix torreyana Anantherix torreyana G. Don, Gen. Hist. 4: 146. 1837.  
Anantherix viridis Anantherix viridis (Walter) Nuttall, Gen. N. Amer. Pl. 1: 169. 1818.Asclepias viridis Walter 1788. 
Asclepias longipetala Asclepias longipetala Scheele, Linnaea 21: 757. 1848. TEXAS: Without data, Lindheimer 345 (holotype: B?; isotype: MO).
Asclepias procumbens Asclepias procumbens Rafinesque, Fl. Ludov. 51. 1817. LOUISIANA
Gomphocarpus viridis Gomphocarpus viridis (Walter) Sprengel, Syst. Veg. 1: 849. 1824 ("1825").Asclepias viridis Walter 1788.  
Podostigma viride Podostigma viride (Walter) Elliott, Sketch Bot. S. Carolina 1: 327. 1817.Asclepias viridis Walter 1788. 
Asclepiodora viridis Asclepiodora viridis (Walter) A. Gray, Proc. Amer. Acad. Arts 12: 66. 1877.Asclepias viridis Walter 1788. 

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: Barbour, Bibb, Bullock, Butler, Cherokee, Chilton, Choctaw, Clarke, Cleburne, Colbert, Conecuh, Coosa, Crenshaw, Dallas, Escambia, Etowah, Franklin, Greene, Hale, Lawrence, Lee, Lowndes, Macon, Marengo, Monroe, Montgomery, Perry, Pickens, Pike, St. Clair, Sumter, Talladega, Washington, Wilcox

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
JSU120835 Bibb 13 May 1983 R. D. Whetstone
13392
JSU
Asclepias viridis Walter
UWAL0000406 Marengo 2 May 2008 J. Kevin England
773
UWAL
Asclepias viridis Walt.
UWAL0000408 St. Clair 21 May 2005 Brian R. Keener
2654
UWAL
Asclepias viridis Walt.
TROY000014191 Cherokee 25 Apr 2002 Daniel D. Spaulding
11213
TROY
Asclepias viridis Walter
UWAL0014307 Franklin 29 Apr 2012 J. Kevin England
3418
UWAL
Asclepias viridis Walter
AUA000030000 Lee 9 MAY 1951 LIPSCOMB, DAVID J.
AUA
ASCLEPIAS VIRIDIS WALTER
AUA000030478 Montgomery 30 APR 1970 MOORE, HAROLD D.
002
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00058351 Macon 2 May 2002 Alvin R. Diamond
13112
UNA
Asclepias viridis Walt.
JSU120848 Franklin 12 May 1973 Kenneth E. Landers
s.n.
JSU
Asclepias viridis Walter
SAMF0004392 Lawrence 30 Apr 2012 L. J. Davenport
5178
SAMF
Asclepias viridis Walter
AMAL00014128 Monroe 26 Apr 2008 Brian R. Keener
4249
AMAL
Asclepias viridis Walt.
TROY000014037 Sumter 30 Apr 2003 Brian R. Keener
2552
TROY
Asclepias viridis Walter
AUA000030474 Macon 3 MAY 1973 JARECKI, PAUL J.
148
AUA
ASCLEPIAS VIRIDIS WALTER
TROY000037265 Choctaw 21 Jun 2013 Alvin R. Diamond
24270
TROY
Asclepias viridis Walter
AUA000030486 Montgomery 2 MAY 1965 SCHULTZ, DON
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00038534 Montgomery 5 Jun 1969 Joab L. Thomas
2141
UNA
Asclepias viridis Walt.
TROY000032998 Butler 10 Jun 2011 Alvin R. Diamond
22231
TROY
Asclepias viridis Walter
UWAL0033704 Macon 01 May 2016 Brian R. Keener
9576
UWAL
Asclepias viridis Walter
AUA000030492 Sumter 1 MAY 1988 THOMAS, R. DALE
104203
AUA
ASCLEPIAS VIRIDIS WALTER
TROY000035594 Wilcox 30 Apr 2006 Robert Kral
97290
TROY
Asclepias viridis Walter
AUA000030469 Dallas 9 MAY 1966 BURNS, EARL R.
AUA
ASCLEPIAS VIRIDIS WALTER
JSU120850 Lawrence 6 Jun 1975 R. D. Whetstone
4369
JSU
Asclepias viridis Walter
AUA000030472 Lowndes 20 APR 2003 MOHNING, K. R.
38
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00050796 Sumter 26 Apr 1998 Brian R. Keener
712
UNA
Asclepias viridis Walt.
UWAL0010178 Perry 30 Apr 2006 R. Kral
97278
UWAL
Asclepias viridis L.
UWAL0011303 Macon 09 Jul 2012 Alvin R. Diamond
23162
UWAL
Asclepias viridis Walter
UNAF0001807 Lawrence 07 May 2008 Webb, David H.
6760
UNAF
Asclepias viridis Walter
UWAL0001004 Dallas 1 May 2010 Brian R. Keener
5928
UWAL
Asclepias viridis Walt.
AUA000030490 Sumter 30 APR 2003 KEENER, BRIAN R.
2552
AUA
ASCLEPIAS VIRIDIS WALTER
JSU120842 Cherokee 16 May 1972 R. D. Whetstone
72
JSU
Asclepias viridis Walter
UWAL0004970 Butler 10 Jun 2011 A.R. Diamond
22231
UWAL
Asclepias viridis Walter
JSU120847 Etowah 23 Jun 1994 L. M. Hodge
2719
JSU
Asclepias viridis Walter
SAMF0004393 Coosa 22 Jul 2011 L. J. Davenport
4721
SAMF
Asclepias viridis Walter
TROY000036656 Choctaw 04 May 2012 Brian R. Keener
7227
TROY
Asclepias viridis Walter
JSU120846 Etowah 1 May 1998 D. D. Spaulding
10503
JSU
Asclepias viridis Walter
UWAL0000405 Lowndes 6 Aug 2008 Brian R. Keener
4718
UWAL
Asclepias viridis Walt.
AUA000030488 Pike 11 JUN 1994 DIAMOND, JR., ALVIN R.
9223
AUA
ASCLEPIAS VIRIDIS WALTER
UWAL0017176 Lawrence 01 Aug 2006 J. Kevin England
660
UWAL
Asclepias viridis Walter
AUA000030477 Marengo 19 JUL 1969 MOORE, HAROLD D.
279-69
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00014736 Perry 2 May 1879 Eugene A. Smith
s.n.
UNA
Asclepias viridis Walt.
UWAL0030920 Sumter 20 May 1993 Kral, R.
82348
UWAL
Asclepias viridis Walter
TROY000014035 St. Clair 21 May 2005 Brian R. Keener
2654
TROY
Asclepias viridis Walter
UWAL0019468 Wilcox 01 May 1987 R. Kral
73816
UWAL
Asclepias viridis Walt.
JSU120851 St. Clair 23 Apr 1984 R. D. Whetstone
14976
JSU
Asclepias viridis Walter
AUA000030482 Montgomery 3 JUL 1967 RANKIN, H. TAYLOR
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00038532 Sumter 31 Jul 1968 Joab L. Thomas
1754
UNA
Asclepias viridis Walt.
TROY000014039 Macon 03 May 2002 Alvin R. Diamond
13112
TROY
Asclepias viridis Walter
UWAL0018934 Marengo 01 May 1987 R. Kral
73808
UWAL
Asclepias viridis Walt.
AUA000030487 Perry 3 MAY 1977 SESSLER, ANN H.
1152
AUA
ASCLEPIAS VIRIDIS WALTER
TROY000014753 Marengo 02 May 2008 J. Kevin England
773
TROY
Asclepias viridis Walter
AUA000030466 Cleburne 9 MAY 1970 BENIWAL, S. P.
074
AUA
ASCLEPIAS VIRIDIS WALTER
AUA000030470 Lee 3 MAY 1973 LYNN, DAVID
130
AUA
ASCLEPIAS VIRIDIS WALTER
AMAL00007353 Sumter 27 Apr 2003 D.D. Spaulding
11787
AMAL
Asclepias viridis Walt.
TROY000043715 Conecuh 30 Apr 2016 Alvin R. Diamond
27355
TROY
Asclepias viridis Walter
UNAF0000670 Barbour 29 Apr 2002 Stewart, Jay
s.n.
UNAF
Asclepias viridis Walter
UNA00058730 St. Clair 21 May 2005 Brian R. Keener
2654
UNA
Asclepias viridis Walt.
TROY000035406 Macon 09 Jul 2012 Alvin R. Diamond
23162
TROY
Asclepias viridis Walter
SAMF0004391 Greene 08 May 1954 H. A. McCullough
s.n.
SAMF
Asclepias viridis Walter
AUA000030489 St. Clair 21 MAY 2004 KEENER, BRIAN R.
2654
AUA
ASCLEPIAS VIRIDIS WALTER
JSU120839 Cherokee 16 Jul 1984 R. D. Whetstone
14582
JSU
Asclepias viridis Walter
TROY000034379 Dallas 01 May 2010 Brian R. Keener
5928
TROY
Asclepias viridis Walter
JSU120841 Cherokee 11 May 1983 R. D. Whetstone
13124
JSU
Asclepias viridis Walter
TROY000001313 Pike 06 May 2002 Alvin R. Diamond
13151
TROY
Asclepias viridis Walter
SAMF0004394 Pike 26 Apr 2011 A. R. Diamond
22001
SAMF
Asclepias viridis Walter
JSU120837 Cherokee 22 Jun 2000 D. D. Spaulding
10898
JSU
Asclepias viridis Walter
UWAL0011184 Bullock 29 Mar 2012 Bailee Dykes
431
UWAL
Asclepias viridis Walter
AUA000030484 Montgomery 11 MAY 1990 DIAMOND, JR., ALVIN R.
6906
AUA
ASCLEPIAS VIRIDIS WALTER
AUA000030485 Montgomery 2 MAY 1965 KOELLING, ALFRED C.
2262
AUA
ASCLEPIAS VIRIDIS WALTER
AUA000030491 Sumter 20 MAY 1970 MOORE, HAROLD D.
050
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00038530 Greene 25 Apr 1967 H. Naugle
G221
UNA
Asclepias viridis Walt.
JSU120843 Cherokee 4 May 1997 J. M. Ballard
7162
JSU
Asclepias viridis Walter
AMAL00013869 St. Clair 21 May 2005 Brian R. Keener
2654
AMAL
Asclepias viridis Walt.
TROY000014038 Monroe 26 Apr 2008 Brian R. Keener
4249
TROY
Asclepias viridis Walter
AUA000030473 Lowndes 12 MAY 2005 HANSEN, CURTIS J.
1793
AUA
ASCLEPIAS VIRIDIS WALTER
TROY000024659 Montgomery 30 Apr 2009 Alvin R. Diamond
20660
TROY
Asclepias viridis Walter
AUA000030483 Montgomery 7 AUG 1966 SCHMITTON, H. R.
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00038531 Greene 30 Aug 1965 Joab L. Thomas
781
UNA
Asclepias viridis Walt.
JSU120836 Bibb 13 May 1983 R. D. Whetstone
13416
JSU
Asclepias viridis Walter
UWAL0014306 Greene 01 May 2012 J. Kevin England
3419
UWAL
Asclepias viridis Walter
UWAL0000407 Monroe 26 Apr 2008 Brian R. Keener
4249
UWAL
Asclepias viridis Walt.
TROY000014036 Sumter 27 Apr 2003 Daniel D. Spaulding
11787
TROY
Asclepias viridis Walter
UWAL0010516 Dallas 26 Apr 2012 Wayne K. Webb
6
UWAL
Asclepias viridis Walt.
AUA000030475 Macon 17 MAY 1973 LODEN, M. S.
73-176
AUA
ASCLEPIAS VIRIDIS WALTER
AMAL00005888 Cherokee 25 Apr 2002 D.D. Spaulding
11213
AMAL
Asclepias viridis Walt.
UNA00064732 Lawrence 17 Apr 2006 Brian R. Keener
2822
UNA
Asclepias viridis Walt.
JSU120844 Cherokee 2 May 1970 Kenneth E. Landers
s.n.
JSU
Asclepias viridis Walter
SAMF0004389 Etowah 04 May 2002 Matt Mosley
41
SAMF
Asclepias viridis Walter
AMAL00007553 Sumter 30 Apr 2003 Brian R. Keener
2552
AMAL
Asclepias viridis Walt.
TROY000021772 Dallas 15 Apr 2007 Daniel D. Spaulding
12583
TROY
Asclepias viridis Walter
AUA000030467 Dallas 1 MAY 2010 KEENER, BRIAN R.
5928
AUA
ASCLEPIAS VIRIDIS WALTER
TROY000035134 Bullock 22 Mar 2012 Bailee Dykes
431
TROY
Asclepias viridis Walter
AMAL00005889 Macon 02 May 2002 A. R. Diamond
13112
AMAL
Asclepias viridis Walt.
UNA00038533 Pickens 8 May 1969 Joab L. Thomas
2039
UNA
Asclepias viridis Walt.
TROY000032594 Dallas 12 May 2011 Alvin R. Diamond
22082
TROY
Asclepias viridis Walter
UWAL0033701 Bullock 01 May 2016 Brian R. Keener
9583
UWAL
Asclepias viridis Walter
JSU120840 Cherokee 7 May 1974 T. A. Atkinson
186
JSU
Asclepias viridis Walter
AUA000030479 Montgomery 10 MAY 1975 VEAL, FRED
144
AUA
ASCLEPIAS VIRIDIS WALTER
TROY000036450 Dallas 26 Apr 2012 Wayne K. Webb
6
TROY
Asclepias viridis Walter
AUA000030481 Montgomery 19 APR 1969 CHITWOOD, JOHN C.
AUA
ASCLEPIAS VIRIDIS WALTER
JSU120849 Lawrence 6 Jun 1975 R. D. Whetstone
4369
JSU
Asclepias viridis Walter
AUA000030480 Montgomery 17 AUG 1970 MOORE, HAROLD D.
594
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00058726 Sumter 30 Apr 2003 Brian R. Keener
2552
UNA
Asclepias viridis Walt.
UWAL0031394 Lowndes 09 Apr 2011 England, J. Kevin
2743
UWAL
Asclepias viridis Walter
UWAL0018216 Colbert 19 May 1993 R. Kral
82326
UWAL
Asclepias viridis Walt.
UWAL0010649 Choctaw 04 May 2012 Brian R. Keener
7227
UWAL
Asclepias viridis Walt.
UWAL0033078 Conecuh 30 Apr 2016 Diamond, Alvin R.
27355
UWAL
Asclepias viridis Walter
JSU120845 Chilton 18 May 1984 R. D. Whetstone
13903
JSU
Asclepias viridis Walter
UWAL0009572 Sumter 22 Apr 2011 Brian R. Keener
6406
UWAL
Asclepias viridis Walt.
UNA00038529 Hale 16 May 1966 Sherrie E. Maginness
s.n.
UNA
Asclepiodora viridis (Walt.) Gray
SAMF0004395 Washington 21 Jun 2013 L. J. Davenport
5467
SAMF
Asclepias viridis Walter
UWAL0033873 Clarke 23 Apr 2016 Brian R. Keener
9527
UWAL
Asclepias viridis Walter
TROY000014472 Crenshaw 26 May 2008 Alvin R. Diamond
19350
TROY
Asclepias viridis Walter
AMAL00014969 Dallas 15 Apr 2007 Daniel D. Spaulding
12583
AMAL
Asclepias viridis Walt.
SAMF0004390 Lowndes 02 May 2010 L. J. Davenport
4271
SAMF
Asclepias viridis Walter
AUA000030468 Dallas 24 APR 1964 CREEL, JOHN
AUA
ASCLEPIAS VIRIDIS WALTER
UWAL0004857 Pike 26 Apr 2011 A.R. Diamond
22001
UWAL
Asclepias viridis Walter
AUA000030476 Marengo 18 JUL 1969 MOORE, HAROLD D.
313-69
AUA
ASCLEPIAS VIRIDIS WALTER
UNA00038528 Escambia 14 Jun 1893 Charles Mohr
s.n.
UNA
Asclepias viridis Walt.
UWAL0032493 Lawrence 14 May 2016 England, J. Kevin
6343
UWAL
Asclepias viridis Walter
AUA000030471 Lowndes 16 APR 2004 BALLARD, D. M.
404
AUA
ASCLEPIAS VIRIDIS WALTER
JSU120838 Cherokee 11 May 1983 C. F. Nixon
132
JSU
Asclepias viridis Walter
UWAL0010658 Washington 04 May 2012 Brian R. Keener
7209
UWAL
Asclepias viridis Walt.
JSU120852 Talladega 18 May 1984 R. D. Whetstone
14012
JSU
Asclepias viridis Walter
UWAL0010147 Lowndes 02 May 2010 L.J. Davenport
4271
UWAL
Asclepias viridis Walter
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