Eupatorium altissimum

Family:ASTERACEAE
Species:Eupatorium altissimum Linnaeus
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 Linnaeus - Tall Thoroughwort

Citation

Citation EUPATORIUM ALTISSIMUM Linnaeus, Sp. Pl. 837. 1753.
Basionym: **
Type: PENNSYLVANIA: Without data (lectotype: S-LINN 335.17). Lectotypified by 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, Marengo, Montgomery, Morgan, Sumter, Tuscaloosa

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
JSU110638 Morgan 16 Oct 1969 R. Kral
37853
JSU
Eupatorium altissimum Linnaeus
UWAL0000631 Sumter 23 Oct 2006 Keener, Brian R.
3255
UWAL
Eupatorium altissimum L.
UNA00046557 Tuscaloosa 2 Nov 1974 Fred K. Hoener
1142
UNA
Eupatorium altissimum L.
TROY000044077 Colbert 13 Sep 2014 J. Kevin England with Jamie England
5160
TROY
Eupatorium altissimum Linnaeus
JSU110637 Morgan 15 Sep 1996 D. D. Spaulding
9126
JSU
Eupatorium altissimum Linnaeus
UNA00066954 Sumter 23 Oct 2006 Brian R. Keener
3255
UNA
Eupatorium altissimum L.
TROY000034098 Greene 03 Oct 2009 Brian R. Keener
5475
TROY
Eupatorium altissimum Linnaeus
UWAL0013643 Butler 01 Sep 2013 Diamond, Alvin R.
24488
UWAL
Eupatorium altissimum Linnaeus
UNA00046555 Hale 7 Oct 1967 Joab L. Thomas
1237
UNA
Eupatorium altissimum L.
TROY000039195 Butler 01 Sep 2013 Alvin R. Diamond
24488
TROY
Eupatorium altissimum Linnaeus
UWAL0004774 Greene 03 Oct 2009 Keener, Brian R.
5475
UWAL
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
UWAL0001719 Montgomery 16 Sep 2010 Diamond, A.R.
21605
UWAL
Eupatorium altissimum L.
UWAL0015634 Lawrence 21 Sep 2013 England, J. Kevin
4564
UWAL
Eupatorium altissimum Linnaeus
TROY000020707 Cleburne 17 Sep 2005 Robert Kral
96821
TROY
Eupatorium altissimum Linnaeus
TROY000015436 Sumter 23 Oct 2006 Brian R. Keener
3255
TROY
Eupatorium altissimum Linnaeus
UWAL0010338 Marengo 08 Oct 2008 England, J. Kevin
1380
UWAL
Eupatorium altissimum Linnaeus
TROY000038248 Bullock 12 Oct 2012 Bailee Dykes
1415
TROY
Eupatorium altissimum Linnaeus
UWAL0033335 Franklin 26 Sep 2016 England, J. Kevin
6870
UWAL
Eupatorium altissimum Linnaeus
UNA00046558 Colbert 17 Sep 1969 R. Kral
36916
UNA
Eupatorium altissimum L.
JSU102996 Bibb 13 May 1983 R. D. Whetstone
13403
JSU
Eupatorium altissimum Linnaeus
UNA00063642 Sumter 10 Sep 2003 Alfred Schotz
1923
UNA
Eupatorium altissimum L.
UNA00046554 Franklin 20 Sep 1939 Roland M. Harper
3756
UNA
Eupatorium altissimum L.
TROY000038725 Marengo 08 Oct 2008 J. Kevin England
1380
TROY
Eupatorium altissimum Linnaeus
UNA00053553 Hale 30 Sep 1969 Joab L. Thomas
2451
UNA
Eupatorium altissimum L.
TROY000031956 Montgomery 16 Sep 2010 Alvin R. Diamond
21605
TROY
Eupatorium altissimum Linnaeus
UWAL0015013 Bullock 12 Oct 2012 Dykes, Bailee
1415
UWAL
Eupatorium altissimum Linnaeus
AMAL00021188 Dallas 26 Aug 2010 T. Wayne Barger
OC-581
AMAL
Eupatorium altissimum L.
UNA00026706 Greene 27 Sep 1952 Roland M. Harper
4215
UNA
Eupatorium altissimum L.
UNA00046556 Dallas 24 Sep _ Charles Mohr
s.n.
UNA
Eupatorium altissimum L.
AMAL00012868 Sumter 23 Oct 2006 Brian R. Keener
3255
AMAL
Eupatorium altissimum L.
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