Silphium trifoliatum var. latifolium

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

Family:	ASTERACEAE
Species:	Silphium trifoliatum Linnaeus var. latifolium A. Gray
Common Name:	Southern Rosinweed
Habitat:	**
Associated Ecological Communities:	**
Growth Habit:	**
Duration:	**
Category:	**
USDA Symbol:	**
Plant Notes:	Southern Rosinweed is a native herbaceous perennial in the Sunflower family (Asteraceae). It is native to the northern two-thirds of Alabama. Southern Rosinweed occurs in prairies, in cedar glades, in open woodlands, in pastures, along fence rows, and on roadsides. It is a perennial from a short rhizome or caudex. The stems are erect, glabrous, often glaucous, unbranched below the inflorescence, and 1-2 meters in height. Leaves are basal and cauline. Basal leaves are usually absent at flowering. Stem leaves are opposite, petiolate to sessile (upper), lanceolate to elliptic in outline, glabrous or sparsely hairy, with entire or toothed margins. Flowers are produced in heads. The heads are arranged in panicles or racemes. The phyllaries (bracts subtending the heads) are green in color, in 2-3 series, and rounded. They are pubescent on their outer surface. Each head has 12-20 yellow ray flowers and 35-130 yellow disc flowers. The pales (bracts subtending individual disc flowers) are non-glandular, but pubescent. Only the ray flowers are fertile. The fruit is an achene. Southern Rosinweed is available from some native plant nurseries. It prefers a well-draining soil in full sun. Plants may require staking to keep them upright.—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	ASTERACEAE - Aster family
Genus	Silphium
Species	Silphium trifoliatum Linnaeus var. latifolium A. Gray - Southern Rosinweed

Citation

Citation	**
Basionym:	**
Type:	**

** Not applicable or data not available.

Synonyms

Synonym	Full Citation	Basionym	Type
Silphium asteriscus var. latifolium
Silphium glabrum
Silphium laevigatum

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, Barbour, Bibb, Blount, Bullock, Calhoun, Chilton, Cleburne, Colbert, Crenshaw, Cullman, DeKalb, Etowah, Fayette, Franklin, Greene, Hale, Jackson, Jefferson, Lauderdale, Lawrence, Lowndes, Marengo, Marshall, Montgomery, Morgan, Pickens, Russell, Shelby, St. Clair, Sumter, Talladega, Tuscaloosa, Walker, Wilcox, Winston

Herbaria represented by specimen data listed below: ALNHS, AMAL, BRIT, JSU, TROY, UNA, UWAL

Range of years during which specimens were collected: 1880 - 1995

Barcode / Accession No.	County	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
JSU132758	Talladega	2 Aug 1992	Ballard, J. Mark 389	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU132751	St. Clair	9 Sep 1983	Whetstone, R. David 13753	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121632	Lawrence	6 Aug 1993	Ballard, J. Mark 3111	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121609	Bibb	22 Jul 1982	Whetstone, R. David 11586	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
AMAL00010523	Winston	01 Aug 2009	Diamond, A.R. 13199	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121621	Jackson	5 Aug 1975	Whetstone, R. David 5864	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
AMAL00003403	Calhoun	27 Jul 1982	Whestsone, R. David	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UNA00056472	Sumter	25 Jul 1997	Schotz, Alfred 1524	UNA Silphium trifoliatum L. var. latifolium Gray
UWAL0016359	Montgomery	29 Aug 2014	Diamond, Alvin R. 25487	UWAL Silphium trifoliatum Linnaeus var. latifolium A. Gray
TROY000016216	Colbert	26 Jul 1981	Kral, Robert 67601	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
AMAL00003408	Lauderdale	07 Aug 2001	Threlkeld, S.J. 1481	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0009969	Winston	01 Aug 2009	Spaulding, Daniel D. 13199	UWAL Silphium trifoliatum L. var. latifolium Gray
AMAL00008762	Sumter	30 Jul 1980	Dalrymple, L. 22	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU139015	Blount	17 Jul 1998	Keener, Brian R. 1250	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
AMAL00020854	Calhoun	25 Jul 1994	Ballard, J.M. 4154	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0009326	Colbert	26 Jul 1981	Kral, Robert 67606	UWAL Silphium trifoliatum L. var. latifolia
JSU121630	Lawrence	7 Aug 1996	Whetstone, R. David 18331	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00054343	Blount	17 Jul 1998	Keener, Brian R. 1250	UNA Silphium trifoliatum L. var. latifolium Gray
JSU132755	Shelby	20 Jul 1993	Whetstone, R. David s.n.	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000050426	Lawrence	09 Aug 2008	England, J. Kevin 886	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
AMAL00021022	Winston	24 Aug 2014	Spaulding, Daniel D. 14104	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0047722	Lawrence	09 Aug 2008	England, J. Kevin 886	UWAL Silphium trifoliatum Linnaeus var. latifolium A. Gray
UWAL0031529	Morgan	22 Aug 2015	England, J. Kevin 5654	UWAL Silphium trifoliatum Linnaeus var. latifolium A.Gray
AMAL00008716	Marshall	27 Aug 1998	Schotz, Alfred 1671	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU132752	Shelby	21 Jul 1999	Spaulding, Daniel D. 10684	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00049377	Cullman	_ Jul 1886	Mohr, Charles s.n.	UNA Silphium trifoliatum L. var. latifolium Gray
AMAL00003405	Lauderdale	07 Aug 2001	Threlkeld, S.J. 1481	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU133001	Walker	13 Aug 1974	Whetstone, R. David 3697	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000035298	Bullock	20 Jul 2012	Diamond, Alvin R. 23178	TROY Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121625	Jefferson	13 Jul 1984	Barber, J. Patrick 811	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00058581	Blount	25 Jul 1998	Keener, Brian R. 1325	UNA Silphium trifoliatum L. var. latifolium Gray
AMAL00013325	Colbert	26 Jul 1981	Kral, R. 67601	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0018594	DeKalb	11 Aug 1973	Kral, Robert 51174	UWAL Silphium trifoliatum L. var. latifolium Gray
JSU132757	Talladega	2 Aug 1992	Ballard, J. Mark 389	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UWAL0019256	Cleburne	03 Aug 1989	Kral, Robert 76835	UWAL Silphium trifoliatum L. var. latifolium
JSU121618	Etowah	17 Jul 1994	Hodge, Lesley M. 2878	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UWAL0030456	Winston	24 Aug 2014	Spaulding, Daniel D. 14104	UWAL Silphium trifoliatum L. var. latifolium Gray
AMAL00016563	Wilcox	21 Aug 2005	Diamond, A.R. 15672	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121622	Jackson	5 Aug 1975	Whetstone, R. David 5864	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121607	Bibb	4 Aug 1996	MacDonald, John R. 9805	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00049364	Greene	09 Sep 1967	Thomas, Joab L. 1157	UNA Silphium trifoliatum L. var. latifolium Gray
UWAL0002282	Pickens	04 Jul 2008	Spaulding, Daniel D. 12995	UWAL Silphium trifoliatum L. var. latifolium Gray
TROY000016215	Colbert	26 Jul 1981	Kral, Robert 67606	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
UWAL0009970	Winston	01 Aug 2009	Spaulding, Daniel D. 13199	UWAL Silphium trifoliatum L. var. latifolium Gray
AMAL00002698	Hale	03 Aug 2008	Spaulding, Daniel D. 13141	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121633	Marshall	13 Sep 1991	Spaulding, Daniel D. 880	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
AMAL00007393	Russell	04 Aug 2001	Kral, R. 91764	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0017773	Franklin	26 Jun 1970	Kral, Robert 39726	UWAL Silphium trifoliatum L. var. latifolium Gray
JSU121629	Lawrence	7 Aug 1996	Whetstone, R. David 18331	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00025278	Tuscaloosa	04 Sep 1995	Ginzbarg, Steven L. 1000	UNA Silphium trifoliatum L. var. latifolium Gray
JSU121635	Montgomery	19 Jul 1997	Schotz, Alfred 1517	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00063051	Sumter	24 Aug 2003	Spaulding, Daniel D. 12037	UNA Silphium trifoliatum L. var. latifolium Gray
AMAL00021686	Tuscaloosa	19 Jul 2014	Spaulding, Daniel D. 14064	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121614	Cleburne	5 Aug 1982	Whetstone, R. David 11886	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UWAL0011284	Bullock	20 Jul 2012	Diamond, Alvin R. 23178	UWAL Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000016213	Bibb	14 Aug 2000	Kral, Robert 90124	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
UWAL0016140	Tuscaloosa	19 Jul 2014	Spaulding, Daniel D. 14064	UWAL Silphium trifoliatum L. var. latifolium Gray
AMAL00020851	Calhoun	25 Jul 1979	Haynes, Robert R. 7498	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU133002	Winston	13 Aug 1974	Whetstone, R. David 3657	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
BRIT67477	Colbert	26 Jul 1981	Kral, Robert 67606	BRIT Silphium trifoliatum Linnaeus var. latifolium A. Gray
AMAL00009483	Pickens	04 Jul 2008	Spaulding, Daniel D. 12995	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0031656	Shelby	11 Aug 1973	Kral, Robert 51158	UWAL Silphium trifoliatum L. var. latifolium
AMAL00015135	Shelby	18 Jul 1979	Kral, R. 64015	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121620	Jackson	12 Jul 1999	Brodeur, Kristin R. 2081	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121631	Lawrence	7 Aug 1996	Whetstone, R. David 18331	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00025277	Tuscaloosa	04 Sep 1995	Ginzbarg, Steven L. 1000	UNA Silphium trifoliatum L. var. latifolium Gray
JSU132754	Shelby	20 Jul 1993	Whetstone, R. David s.n.	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00049379	Marshall	20 Aug 1992	Spaulding, Daniel D. 2686	UNA Silphium trifoliatum L. var. latifolium Gray
AMAL00008503	Sumter	24 Aug 2003	Spaulding, Daniel D. 12037	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0016139	Tuscaloosa	19 Jul 2014	Spaulding, Daniel D. 14064	UWAL Silphium trifoliatum L. var. latifolium Gray
UWAL0016650	Bibb	17 Aug 2014	Diamond, Alvin R. 25449	UWAL Silphium trifoliatum Linnaeus var. latifolium A. Gray
TROY000020581	Lowndes	15 Aug 2005	Kral, Robert 96717	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
JSU132760	Walker	13 Aug 1974	Atkinson, Tim A. 704	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UWAL0030455	Winston	24 Aug 2014	Spaulding, Daniel D. 14104	UWAL Silphium trifoliatum L. var. latifolium Gray
AMAL00003404	Lauderdale	07 Aug 2001	Threlkeld, S.J. 1481	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU132759	Walker	13 Aug 1974	Whetstone, R. David 3697	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
BRIT67478	Colbert	26 Jul 1981	Kral, Robert 67606	BRIT Silphium trifoliatum Linnaeus var. latifolium A. Gray
UWAL0030446	Bibb	29 May 1970	Kral, Robert 39321	UWAL Silphium trifoliatum L. var. latifolium
AMAL00015234	Shelby	18 Jul 1979	Kral, R. 64015	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121619	Jackson	12 Jul 1999	Brodeur, Kristin R. 2081	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121611	Blount	17 Aug 1997	Ballard, J. Mark 7395	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121612	Cleburne	8 Sep 1983	Whetstone, R. David 13676	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000016219	Sumter	24 Aug 2003	Spaulding, Daniel D. 12037	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
JSU121627	Lauderdale	20 Jul 1996	Whetstone, R. David 18243	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000044547	Pickens	04 Jul 2008	Spaulding, Daniel D. 12995	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
JSU121608	Bibb	31 Jul 1998	Whetstone, R. David 19608	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
AMAL00021164	Fayette	10 Jul 2012	England, J. Kevin 3630	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UNA00056206	Barbour	12 Aug 1998	MacDonald, John R. 11709	UNA Silphium trifoliatum L. var. latifolium Gray
JSU121634	Marshall	29 Jun 1992	Spaulding, Daniel D. 2170	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000041556	Montgomery	29 Aug 2014	Diamond, Alvin R. 25487	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
AMAL00003407	Lauderdale	07 Aug 2001	Threlkeld, S.J. 1481	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0010200	Crenshaw	26 Sep 2006	Kral, Robert 97692	UWAL Silphium trifoliatum L. var. latifolium A. Gray
TROY000049681	Autauga	08 Jun 2017	Parker, Matthew R. 916	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
JSU121623	Jefferson	27 Jul 1984	Barber, J. Patrick 918	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000016214	Blount	25 Jul 1998	Keener, Brian R. 1325	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
UWAL0019304	Pickens	19 Jul 1970	Kral, Robert 40166	UWAL Silphium trifoliatum L. var. latifolium Gray
AMAL00014395	St. Clair	09 Sep 2007	Keener, Brian R. 3846	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121610	Blount	7 Aug 1975	Whetstone, R. David 5911	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UWAL0018929	Marengo	06 Oct 1972	Kral, Robert 48875	UWAL Silphium trifoliatum L. var. latifolium Gray
JSU121617	Etowah	24 Sep 1994	Hodge, Lesley M. 3882	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00054446	Blount	06 Sep 1998	Keener, Brian R. 1626	UNA Silphium trifoliatum L. var. latifolium Gray
AMAL00021685	Tuscaloosa	19 Jul 2014	Spaulding, Daniel D. 14064	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121615	Cleburne	5 Aug 1982	Whetstone, R. David 11886	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121616	DeKalb	23 Jul 1975	Whetstone, R. David 5218	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00049365	Sumter	09 Sep 1967	Thomas, Joab L. 1168	UNA Silphium trifoliatum L. var. latifolium Gray
UWAL0009939	Hale	03 Aug 2008	Spaulding, Daniel D. 13141	UWAL Silphium trifoliatum L. var. latifolium Gray
TROY000035431	Crenshaw	26 Sep 2006	Kral, Robert 97692	TROY Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00056474	Greene	13 Aug 1997	Schotz, Alfred 1535	UNA Silphium trifoliatum L. var. latifolium Gray
AMAL00001391	Pickens	04 Jul 2008	Spaulding, Daniel D. 12995	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU121626	Jefferson	17 Sep 1983	Whetstone, R. David 12493	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
AMAL00015461	Lowndes	15 Aug 2005	Kral, R. 96717	AMAL Silphium trifoliatum L. var. latifolium A. Gray
JSU132756	Shelby	1 Oct 1986	Boehm, S.J. 161	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
AMAL00014396	Wilcox	07 Aug 2007	Keener, Brian R. 3825	AMAL Silphium trifoliatum L. var. latifolium A. Gray
ALNHS00005303	Montgomery	22 Sep 2017	Taylor, Chris T. SP#3507	ALNHS Silphium trifoliatum L. var. latifolium A. Gray
JSU121636	Morgan	5 Aug 1974	Atkinson, Tim A. 509	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
JSU121613	Cleburne	8 Sep 1983	Whetstone, R. David 13676	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
UNA00049378	Montgomery	18 Jul 1880	Mohr, Charles s.n.	UNA Silphium trifoliatum L. var. latifolium Gray
JSU121628	Lauderdale	20 Jul 1996	Whetstone, R. David 18243	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000044543	Hale	03 Aug 2008	Spaulding, Daniel D. 13141	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
AMAL00021023	Winston	24 Aug 2014	Spaulding, Daniel D. 14104	AMAL Silphium trifoliatum L. var. latifolium A. Gray
TROY000002796	Lowndes	09 Sep 2004	Hansen, Curtis J. 1630	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
UNA00049388	Wilcox	17 Aug 1982	Gunn, Scott C. 1066	UNA Silphium trifoliatum L. var. latifolium Gray
JSU132753	Shelby	21 Jul 1999	Spaulding, Daniel D. 10684	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000043146	Lowndes	29 Aug 2014	Diamond, Alvin R. 25481	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
AMAL00003406	Lauderdale	07 Aug 2001	Threlkeld, S.J. 1481	AMAL Silphium trifoliatum L. var. latifolium A. Gray
UWAL0002283	Pickens	04 Jul 2008	Spaulding, Daniel D. 12995	UWAL Silphium trifoliatum L. var. latifolium Gray
TROY000002797	Russell	04 Aug 2001	Kral, Robert 91764	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
JSU121624	Jefferson	13 Jul 1984	Barber, J. Patrick 811	JSU Silphium trifoliatum Linnaeus var. latifolium Gray
TROY000041602	Bibb	17 Aug 2014	Diamond, Alvin R. 25449	TROY Silphium trifoliatum Linnaeus var. latifolium A. Gray
UWAL0019186	Chilton	11 Aug 1973	Kral, Robert 51148	UWAL Silphium trifoliatum L. var. latifolium Gray

View a List of All Ecological Communities

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

Data last modified: 8/17/2025

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Citation Information:

Keener, B.R., A.R. Diamond, T.W. Barger, L.J. Davenport, P.G. Davison, S.L. Ginzbarg, C.J. Hansen, D.D. Spaulding, J.K. Triplett, and M. Woods. 2025. 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.

Silphium trifoliatum var. latifolium

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Specimens and Distribution