Aristida oligantha

Family:POACEAE
Species:Aristida oligantha Michaux
Common Name:Prairie Three Awn; Oldfield Three Awn
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:**
Plant Notes:Prairie Three Awn is a native herbaceous annual in the Grass family (Poaceae). It can be found throughout much of Alabama. Prairie Three Awn occurs in dry, often sandy habitats such as on roadsides, in old fields, in pine woodlands, and in disturbed habitats. It is an annual with a fibrous root system. It grows 10-20 inches in height from highly branched culms. The culms are often geniculate (bent at a sharp angle) at the base. Leaves are cauline, alternate, linear, with entire margins. The leaves have a sheath that is shorter than the internodes and is glabrous. The leaf blades are often folded and twisted. Flowers are produced in spikes or racemes. Spikelets are 14-18 mm long with three awns. The awns are approximately equal in length (5-10 mm) and spreading. The fruit is a grain. Prairie Three Awn is a common but easily over looked species. It has the largest fruit with the longest awns of any of our Tree Awn species. It is an excellent subject to use when demonstrating the parts of a grass flower/fruit because of its size.--A. Diamond
Taxonomic Notes:**
Status:Native, G5 (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyPOACEAE - Grass family
Genus Aristida
Species Aristida oligantha Michaux - Prairie Three Awn; Oldfield Three Awn

Citation

Citation ARISTIDA OLIGANTHA Michaux, Fl. Bor.-Amer. 1: 41. 1803.
Basionym: **
Type: ILLINOIS: Without data, Michaux s.n. (holotype: P-M).

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Aristida macrochaeta Aristida macrochaeta Steudel, Syn. Pl. Glumac. 1: 134. 1854. VIRGINIA: Without data, Curtis s.n. (holotype: P).
Aristida micropoda Aristida micropoda Trinius & Ruprecht, M√©m. Acad. Imp. Sci. Saint-Petersbourg, Ser. 6, Sci. Math., Seconde Pt. Sci. Nat. 5(1): 107. 1842. ARKANSAS: Without data, Beyrich 115 (holotype: LE).
Aristida oligantha var. nervata Aristida oligantha Michaux, var. nervata Beal, Grass. N. Amer. 2: 202. 1896. OREGON: Josephine Co.: Grants Pass, s.d., Howell s.n. (holotype: ?; isotype: US).
Aristida pauciflora Aristida pauciflora Buckley, Proc. Acad. Nat. Sci. Philadelphia 14: 92. 1862. TEXAS: Without data, Buckley s.n. (holotype: PH).
Chaetaria oligantha Chaetaria oligantha (Michaux) Palisot de Beauvois, Ess. Agrostogr. 30, 152. 158. 1812.Aristida oligantha Michaux 1803. 

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, Blount, Bullock, Butler, Calhoun, Colbert, Conecuh, Coosa, Covington, Crenshaw, Elmore, Etowah, Franklin, Greene, Lawrence, Lee, Lowndes, Macon, Monroe, Montgomery, Morgan, Pike, Russell, Shelby, Sumter, Tuscaloosa, Walker

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: 1965 - 2014

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
JSU105892 Calhoun 20 Jul 1982 R. D. Whetstone
11481
JSU
Aristida oligantha Michaux
TROY000011585 Russell 14 Oct 2004 Alvin R. Diamond
14791
TROY
Aristida oligantha Michaux
UWAL0008782 Butler 23 Aug 2007 Diamond, A.R.
17948
UWAL
Aristida oligantha Michx.
AUA000015104 Lowndes 27 SEP 1987 DIAMOND, JR., ALVIN R.
3659
AUA
ARISTIDA OLIGANTHA MICHAUX
UNA00060580 Conecuh 19 Oct 2002 Alvin R. Diamond
13715
UNA
Aristida oligantha Michx.
AUA000015093 Butler 12 SEP 1979 CRAWFORD, LLOYD C.
AUA
ARISTIDA OLIGANTHA MICHAUX
AUA000015102 Lee 17 JUL 1967 TEEM, DAVID H.
AUA
ARISTIDA OLIGANTHA MICHAUX
TROY000038893 Coosa 11 Oct 2013 Alvin R. Diamond
24634
TROY
Aristida oligantha Michaux
TROY000011579 Barbour 20 Oct 2001 Alvin R. Diamond
12789
TROY
Aristida oligantha Michaux
AUA000015097 Conecuh 19 OCT 2002 DIAMOND, JR., ALVIN R.
13715
AUA
ARISTIDA OLIGANTHA MICHAUX
UWAL0012572 Morgan 09 Sep 2012 Spaulding, Dan
13575
UWAL
Aristida oligantha Michaux
JSU105916 Shelby 12 Oct 1996 D. D. Spaulding
9296
JSU
Aristida oligantha Michaux
UWAL0037301 Walker 22 Oct 2016 Spaulding, Daniel D.
14738
UWAL
Aristida oligantha Michx.
UNA00003378 Tuscaloosa 16 Nov 1974 Fred K. Hoener
1201
UNA
Aristida oligantha Michx.
AUA000015094 Conecuh 13 NOV 1994 DIAMOND, JR., ALVIN R.
9455
AUA
ARISTIDA OLIGANTHA MICHAUX
TROY000044035 Colbert 13 Sep 2014 J. Kevin England
5135A
TROY
Astrida oilgantha Michaux
AUA000015103 Lowndes 8 NOV 1992 DIAMOND, JR., ALVIN R.
8500
AUA
ARISTIDA OLIGANTHA MICHAUX
AUA000015110 Russell 17 OCT 2004 DIAMOND, JR., ALVIN R.
14810
AUA
ARISTIDA OLIGANTHA MICHAUX
AUA000015099 Elmore 6 JUL 1967 ATKINS, W. B.
AUA
ARISTIDA OLIGANTHA MICHAUX
TROY000011582 Conecuh 19 Oct 2002 Alvin R. Diamond
13715
TROY
Aristida oligantha Michaux
UWAL0018241 Colbert 29 Aug 1989 Kral, R.
77003
UWAL
Aristida oligantha Michx.
TROY000044149 Pike 28 Oct 2013 Alvin R. Diamond
24679
TROY
Aristida oligantha Michaux
UNA00064346 Montgomery 19 Sep 2004 Alvin R. Diamond
14706
UNA
Aristida oligantha Michx.
AUA000015092 Butler 11 SEP 1987 DIAMOND, JR., ALVIN R.
3603
AUA
ARISTIDA OLIGANTHA MICHAUX
TROY000035717 Monroe 23 Sep 2012 Alvin R. Diamond
23408
TROY
Aristida oligantha Michaux
AUA000015096 Conecuh 3 OCT 1987 DIAMOND, JR., ALVIN R.
3705
AUA
ARISTIDA OLIGANTHA MICHAUX
JSU105900 Franklin 15 Oct 1975 R. D. Whetstone
7139
JSU
Aristida oligantha Michaux
TROY000011580 Bullock 11 Sep 2003 Alvin R. Diamond
14139
TROY
Aristida oligantha Michaux
UWAL0018264 Colbert 13 Sep 2014 England, J. Kevin
5135.1
UWAL
Aristida oligantha Michaux
AUA000015108 Montgomery 26 OCT 2005 DIAMOND, JR., ALVIN R.
16005
AUA
ARISTIDA OLIGANTHA MICHAUX
UNA00063665 Russell 17 Oct 2004 Alvin R. Diamond
14810
UNA
Aristida oligantha Michx.
UNA00056032 Barbour 06 Jul 1998 John R. MacDonald
11587
UNA
Aristida oligantha Michx.
AUA000015101 Lee 17 JUL 1972 STREET, JIMMY J.
106
AUA
ARISTIDA OLIGANTHA MICHAUX
UWAL0032852 Lawrence 10 Oct 2005 England, J. Kevin
6865
UWAL
Aristida oligantha Michaux
AUA000015107 Montgomery 19 SEP 2004 DIAMOND, JR., ALVIN R.
14706
AUA
ARISTIDA OLIGANTHA MICHAUX
UWAL0015759 Pike 28 Oct 2013 Diamond, Alvin R.
24679
UWAL
Aristida oligantha Michaux
TROY000011581 Butler 23 Aug 2007 Alvin R. Diamond
17948
TROY
Aristida oligantha Michaux
JSU105894 Etowah 10 Oct 1995 L. Hodge-Spaulding
4390
JSU
Aristida oligantha Michaux
JSU105911 Morgan 15 Sep 1996 D. D. Spaulding
9155
JSU
Aristida oligantha Michaux
UNA00055882 Tuscaloosa 07 Sep 1974 Fred K. Hoener
1111
UNA
Aristida oligantha Michx.
AUA000015111 Russell 14 OCT 2004 DIAMOND, JR., ALVIN R.
14791
AUA
ARISTIDA OLIGANTHA MICHAUX
UWAL0015745 Coosa 11 Oct 2013 Diamond, Alvin R.
24634
UWAL
Aristida oligantha Michaux
AUA000015109 Pike 9 SEP 1990 DIAMOND, JR., ALVIN R.
7108
AUA
ARISTIDA OLIGANTHA MICHAUX
AUA000015106 Montgomery 18 NOV 1990 DIAMOND, JR., ALVIN R.
7187
AUA
ARISTIDA OLIGANTHA MICHAUX
AUA000015100 Lee 14 NOV 1959 BANKS, DONALD J.
AUA
ARISTIDA OLIGANTHA MICHAUX
TROY000011583 Montgomery 19 Sep 2004 Alvin R. Diamond
14706
TROY
Aristida oligantha Michaux
UWAL0012604 Tuscaloosa 07 Oct 2012 Spaulding, Dan
13668
UWAL
Aristida oligantha Michaux
UWAL0014951 Monroe 23 Sep 2012 Diamond, Alvin R.
23408
UWAL
Aristida oligantha Michaux
UNA00054477 Blount 19 Sep 1998 Brian R. Keener
1668
UNA
Aristida oligantha Michx.
AUA000015090 Bullock 11 SEP 2003 DIAMOND, JR., ALVIN R.
14139
AUA
ARISTIDA OLIGANTHA MICHAUX
TROY000045821 Franklin 29 Aug 2013 J. Kevin England
4496
TROY
Aristida oligantha Michaux
AUA000015095 Conecuh 30 NOV 1990 DIAMOND, JR., ALVIN R.
7193
AUA
ARISTIDA OLIGANTHA MICHAUX
JSU105915 Calhoun 24 Aug 1982 R. D. Whetstone
11991
JSU
Aristida oligantha Michaux
TROY000011586 Russell 17 Oct 2004 Alvin R. Diamond
14810
TROY
Aristida oligantha Michaux
UWAL0013071 Bullock 26 Jul 2012 Dykes, Bailee
1105
UWAL
Aristida oligantha Michaux
TROY000036567 Bullock 26 Jul 2012 Bailee Dykes
1105
TROY
Aristida oligantha Michaux
UNA00060852 Bullock 11 Sep 2003 Alvin R. Diamond
14139
UNA
Aristida oligantha Michx.
AUA000015091 Butler 10 DEC 1989 DIAMOND, JR., ALVIN R.
6623
AUA
ARISTIDA OLIGANTHA MICHAUX
AUA000015112 Sumter SEP 1983 WARD, C. Y.
AUA
ARISTIDA OLIGANTHA MICHAUX
JSU105912 Shelby 10 Sep 1982 R. D. Whetstone
12273
JSU
Aristida oligantha Michaux
TROY000045498 Covington 14 Nov 2012 Alvin R. Diamond
23559
TROY
Aristida oligantha Michaux
UWAL0032866 Colbert 28 Sep 2016 England, J. Kevin
6885
UWAL
Aristida oligantha Michaux
TROY000011584 Montgomery 26 Oct 2005 Alvin R. Diamond
16005
TROY
Aristida oligantha Michaux
AUA000015098 Crenshaw 24 OCT 1990 DIAMOND, JR., ALVIN R.
7178
AUA
ARISTIDA OLIGANTHA MICHAUX
UNA00063695 Russell 14 Oct 2004 Alvin R. Diamond
14791
UNA
Aristida oligantha Michx.
UNA00003363 Greene 30 Aug 1965 Joab L. Thomas
779
UNA
Aristida oligantha Michx.
AUA000015105 Macon 25 JUL 1971 SPRATLING, R. E.
088
AUA
ARISTIDA OLIGANTHA MICHAUX
UWAL0032845 Lawrence 20 Sep 2014 England, J. Kevin
5197
UWAL
Aristida oligantha Michaux
UWAL0014376 Franklin 29 Aug 2013 England, J. Kevin
4496
UWAL
Aristida oligantha Michaux
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