Eupatorium altissimum

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

Species Distribution Map
Family:ASTERACEAE
Species:Eupatorium altissimum L.
Common Name:Tall Thoroughwort
Habitat:Disurbed site.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:Tall Thoroughwort is a native herbaceous perennial in the Sunflower family (Asteraceae). It occurs in central and north Alabama. Tall Thoroughwort grows in prairies, in cedar glades, and in dry, open woods. It is found exclusively on soils derived from limestone. Plants are 1-4 feet tall from a stout rhizome. The stems are pubescent and usually unbranched below the inflorescence. The leaves are opposite, sessile, lanceolate to elliptic in outline, with a few teeth towards the apex. The leaves have 3 main veins, are pubescent on both surfaces, and gland dotted. There are usually several pairs of smaller leaves in the axils of the main stem leaves, the nodes appearing leafy. Flowers are produced in heads. The heads are arranged in a terminal corymb. Each head has 6 white disc flowers. The fruit is an achene. Tall Thoroughwort in Alabama is an apomictic (forming fruit without sexual reproduction, the embryo develops from vegetative cells) polyploid (having three or more pairs of chromosomes per cell). Tall Thoroughwort is available from some wildflower nurseries. It prefers a dry, well-draining, clay soil in full sun. Tall Thoroughwort is drought tolerant and deer resistant.--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

FamilyASTERACEAE - Aster family
Genus Eupatorium
Species Eupatorium altissimum L. - Tall Thoroughwort

Citation

Citation Eupatorium altissimum Linnaeus, Sp. Pl. 2: 837. 1753.
Basionym: **
Type: USA: PENNSYLVANIA: Without data (lectotype: S-LINN 335.17). Lectotypified by J.L. Reveal, in C.E. Jarvis & Turland, Taxon 47: 360. 1998.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Eupatorium saltuense Eupatorium saltuense Fernald, Rhodora 44: 461, t. 738(1-2). 1942. VIRGINIA: Surry Co.: Cobham Bay, James River, NW of Chippokes, 25 Aug 1940, Fernald & Long 12846 (holotype: GH; isotype: PH).
Uncasia altissima Uncasia altissima (Linnaeus) Greene, Leafl. Bot. Observ. Crit. 1: 13. 1903.Eupatorium altissimum Linnaeus 1753. 

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: Bibb, Bullock, Butler, Cleburne, Colbert, Dallas, Franklin, Greene, Hale, Lawrence, Madison, Marengo, Montgomery, Morgan, Pickens, Sumter, Tuscaloosa

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: 1939 - 1974

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
JSU102996 Bibb 13 May 1983 Whetstone, R. David
13403		 JSU
Eupatorium altissimum Linnaeus
UNA00053553 Hale 30 Sep 1969 Thomas, Joab L.
2451		 UNA
Eupatorium altissimum L.
UWAL0052078 Pickens 20 Sep 2020 Keener, Brian R.
11968		 UWAL
Eupatorium altissimum L.
UWAL0004774 Greene 03 Oct 2009 Keener, Brian R.
5475		 UWAL
Eupatorium altissimum L.
TROY000038725 Marengo 08 Oct 2008 England, J. Kevin
1380		 TROY
Eupatorium altissimum Linnaeus
UNA00046558 Colbert 17 Sep 1969 Kral, Robert
36916		 UNA
Eupatorium altissimum L.
AMAL00012868 Sumter 23 Oct 2006 Keener, Brian R.
3255		 AMAL
Eupatorium altissimum L.
UWAL0001719 Montgomery 16 Sep 2010 Diamond, Alvin R.
21605		 UWAL
Eupatorium altissimum L.
UNA00070135 Sumter 28 Aug 2008 Schotz, Alfred
2109		 UNA
Eupatorium altissimum L.
UWAL0015634 Lawrence 21 Sep 2013 England, J. Kevin
4564		 UWAL
Eupatorium altissimum Linnaeus
UWAL0033335 Franklin 26 Sep 2016 England, J. Kevin
6870		 UWAL
Eupatorium altissimum Linnaeus
JSU110638 Morgan 16 Oct 1969 Kral, Robert
37853		 JSU
Eupatorium altissimum Linnaeus
TROY000015436 Sumter 23 Oct 2006 Keener, Brian R.
3255		 TROY
Eupatorium altissimum Linnaeus
UNA00063642 Sumter 10 Sep 2003 Schotz, Alfred
1923		 UNA
Eupatorium altissimum L.
UWAL0000631 Sumter 23 Oct 2006 Keener, Brian R.
3255		 UWAL
Eupatorium altissimum L.
UWAL0013643 Butler 01 Sep 2013 Diamond, Alvin R.
24488		 UWAL
Eupatorium altissimum Linnaeus
UNA00046557 Tuscaloosa 02 Nov 1974 Hoener, Fred K.
1142		 UNA
Eupatorium altissimum L.
TROY000044077 Colbert 13 Sep 2014 England, J. Kevin
5160		 TROY
Eupatorium altissimum Linnaeus
JSU110637 Morgan 15 Sep 1996 Spaulding, Daniel D.
9126		 JSU
Eupatorium altissimum Linnaeus
UWAL0015013 Bullock 12 Oct 2012 Dykes, Bailee
1415		 UWAL
Eupatorium altissimum Linnaeus
TROY000020707 Cleburne 17 Sep 2005 Kral, Robert
96821		 TROY
Eupatorium altissimum Linnaeus
TROY000031956 Montgomery 16 Sep 2010 Diamond, Alvin R.
21605		 TROY
Eupatorium altissimum Linnaeus
UNA00026706 Greene 27 Sep 1952 Harper, Roland M.
4215		 UNA
Eupatorium altissimum L.
UWAL0010338 Marengo 08 Oct 2008 England, J. Kevin
1380		 UWAL
Eupatorium altissimum Linnaeus
UNA00066954 Sumter 23 Oct 2006 Keener, Brian R.
3255		 UNA
Eupatorium altissimum L.
TROY000034098 Greene 03 Oct 2009 Keener, Brian R.
5475		 TROY
Eupatorium altissimum Linnaeus
UNA00046555 Hale 07 Oct 1967 Thomas, Joab L.
1237		 UNA
Eupatorium altissimum L.
AUA000043945 Madison 8 Oct 2020 Hansen, Curtis J.
7880		 AUA
Eupatorium Altissimum L.
UNA00046556 Dallas 24 Sep _ Mohr, Charles
s.n.		 UNA
Eupatorium altissimum L.
ALNHS00005304 Montgomery 22 SEP 2017 Taylor, Chris T.
SP#3509		 ALNHS
Eupatorium altissimum L.
UNA00046554 Franklin 20 Sep 1939 Harper, Roland M.
3756		 UNA
Eupatorium altissimum L.
UWAL0000630 Marengo 08 Oct 2008 England, J. Kevin
1365		 UWAL
Eupatorium altissimum L.
UWAL0018232 Colbert 13 Sep 2014 England, J. Kevin
5160		 UWAL
Eupatorium altissimum Linnaeus
TROY000039195 Butler 01 Sep 2013 Diamond, Alvin R.
24488		 TROY
Eupatorium altissimum Linnaeus
TROY000038248 Bullock 12 Oct 2012 Dykes, Bailee
1415		 TROY
Eupatorium altissimum Linnaeus
AMAL00021188 Dallas 26 Aug 2010 Barger, T. Wayne
OC-581		 AMAL
Eupatorium altissimum L.
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