Nabalus barbatus

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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:Nabalus barbatus (Torr. & A. Gray) A. Heller
Common Name:Barbed Rattlesnake Root; Flatwoods Rattlesnake Root
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:Barbed Rattlesnake Root is a native herbaceous perennial in the Sunflower family (Asteraceae). It can be found in central and northeastern Alabama. It occurs in rich hardwood forests, in prairies, around calcareous glades, and on roadside banks. It is a perennial with a thick, knotty, tuberous taproot. The stems are erect, unbranched below the inflorescences, green or purplish in color, and glabrous towards the base and finely pubescent towards the apex. Basal leaves are often absent at flowering. They are petiolate, elliptic in outline, thick, with irregularly toothed margins. The leaves are glabrous or with scattered stiff hairs. Stem leaves are alternate, sessile (sometimes clasping), and otherwise similar to the basal leaves but smaller in size. Flowers are produced in heads. The heads are arranged in terminal panicles. Each head has 7-11 short triangular basal bracts that are purple or green in color (the calyculi-- a group of small bracts that resembles a calyx), and 6-8 long, purple or green, linear bracts (the phyllaries). The calyculi and phyllaries are both coarsely setose with long, white hairs. Each head has 10-15 white or pale-yellow ray flowers. The fruit is an achene with yellowish-white pappus. Barbed Rattlesnake Root is listed as an S1S2 species in Alabama (S1 - Typically 5 or fewer occurrences, very few remaining individuals, or some factor of its biology making it especially vulnerable in the state; S2 - Typically 6 to 20 occurrences, few remaining individuals, or factors demonstrably making it very vulnerable in the state), and globally as a G3 species (Imperiled globally because of rarity (6 - 20 occurrences) or very vulnerable to extinction throughout its range because of other factors).—A. Diamond
Taxonomic Notes:**
Status:Native, S1S2 (State Rank), G3 (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyASTERACEAE - Aster family
Genus Nabalus
Species Nabalus barbatus (Torr. & A. Gray) A. Heller - Barbed Rattlesnake Root; Flatwoods Rattlesnake Root

Citation

Citation Nabalus barbatus (Torrey & A.Gray) A. Heller, Muhlenbergia 1: 8. 1900.
Basionym: Nabalus fraseri var. barbatus Torr. & A. Gray 1843.
Type: **

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Nabalus serpentarius var. barbatus    
Prenanthes barbata Prenanthes barbata ( Torr. & A.Gray ) Milstead ex Cronquist, Brittonia 29(2): 223. 1977.  
Prenanthes serpentaria var. barbata    

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: Cherokee, Clarke, Dallas, Etowah, Greene, Lowndes, Madison, Marengo, Marshall, Montgomery, Morgan, St. Clair, 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: 1950 - 1969

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
JSU117886 Etowah 19 Oct 1994 Hodge, Lesley M.
4023		 JSU
Nabalus barbatus (Torrey & Gray) A. Heller
TROY000050434 Marengo 30 Sep 2018 Keener, Brian R.
10889		 TROY
Nabalus barbatus (Torrey & A. Gray) A. Heller
UWAL0047393 Marengo 20 Sep 2018 Keener, Brian R.
10889		 UWAL
Nabalus barbatus (Torr. & A. Gray) A. Heller
JSU139773 Etowah 25 Sep 1994 Spaulding, Daniel D.
7654		 JSU
Nabalus barbatus (Torrey & Gray) A. Heller
AUA000006539 Etowah 9 Oct 1969 Kral, Robert
37700		 AUA
Nabalus Barbatus (Torr. & Gray) Heller
AMAL00003265 Madison 22 Sep 1997 Threlkeld, S.J.
1196		 AMAL
Nabalus barbatus (Torr. & Gray) Heller
UNA00048464 Etowah 09 Oct 1969 Kral, Robert
37700		 UNA
Prenanthes barbata (Torr. & Gray) Milstead
AUA000042901 Montgomery 15 Sep 2020 Birkhead, Roger
 AUA
Nabalus Barbatus (Torr. & Gray) Heller
TROY000002639 Clarke 09 Oct 2006 Diamond, Alvin R.
17054		 TROY
Prenanthes barbata (Torrey & A. Gray) Milstead
UWAL0017623 Lowndes 17 Oct 2014 Diamond, Alvin R.
25620		 UWAL
Nabalus barbatus (Torrey & A. Gray) A. Heller
TROY000040981 Lowndes 07 Oct 2013 Webb, Wayne K.
s.n.		 TROY
Nabalus barbatus (Torrey & A. Gray) A. Heller
UWAL0038375 Clarke 06 Oct 2018 Boone, Meaghan C.
132		 UWAL
Nabalus barbatus (Torrey & A. Gray) A. Heller
UNA00048374 Etowah 09 Oct 1969 Kral, Robert
37700		 UNA
Prenanthes barbata (Torr. & Gray) Milstead
AUA000006541 St. Clair 1 Oct 1971 Kral, Robert
44623		 AUA
Nabalus Barbatus (Torr. & Gray) Heller
UWAL0012091 Dallas 15 Jun 2012 Keener, Brian R.
7313		 UWAL
Nabalus barbatus (Torr. & Gray) Heller
TROY000041794 Lowndes 22 Sep 2014 Webb, Wayne K.
s.n.		 TROY
Nabalus barbatus (Torrey & A. Gray) A. Heller
TROY000042352 Lowndes 17 Oct 2014 Diamond, Alvin R.
25620		 TROY
Nabalus barbatus (Torrey & A. Gray) A. Heller
ALNHS00008670 Cherokee 15 Oct 1999 Schotz, Alfred R.
ARS#1758		 ALNHS
Nabalus barbatus (Torr. & Gray) A. Heller
AUA000006540 Marshall 1 Oct 1971 Kral, Robert
44670		 AUA
Nabalus Barbatus (Torr. & Gray) Heller
ALNHS00005152 Greene 21 SEP 2017 Barger, T. Wayne
SP#3391		 ALNHS
Nabalus barbatus (Torr. & Gray) Heller
AMAL00014441 Clarke 01 Oct 2006 Diamond, Alvin R.
16981		 AMAL
Nabalus barbatus (Torr. & Gray) Heller
UWAL0015367 Lowndes 22 Sep 2014 Webb, Wayne K.
s.n.		 UWAL
Nabalus barbatus (Torr. & Gray) Heller
UWAL0052306 St. Clair 15 Oct 2018 Keener, Brian R.
10918		 UWAL
Nabalus barbatus (Torr. & A. Gray) A. Heller
JSU139774 Cherokee 22 Sep 1996 Spaulding, Daniel D.
9272		 JSU
Nabalus barbatus (Torrey & Gray) A. Heller
UWAL0016791 Lowndes 07 Oct 2013 Webb, Wayne K.
s.n.		 UWAL
Nabalus barbatus (Torr. & Gray) Heller
AUA000006538 Cherokee 9 Oct 1969 Kral, Robert
37790		 AUA
Nabalus Barbatus (Torr. & Gray) Heller
UWAL0053260 Morgan 08 Oct 2020 Thompson, Joey
1251		 UWAL
Nabalus barbatus (Torr. & A. Gray) A. Heller
TROY000051614 Montgomery 25 Sep 2020 Birkhead, Roger
s.n.		 TROY
Nabalus barbatus (Torrey & A. Gray) A. Heller
AUA000025990 Dallas 10 Oct 2008 Schotz, Alfred
2119		 AUA
Nabalus Barbatus (Torr. & Gray) Heller
UNA00048954 Tuscaloosa 08 Oct 1950 Williams, B.C.
s.n.		 UNA
Prenanthes barbata (Torr. & Gray) Milstead
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