Acanthospermum hispidum

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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:Acanthospermum hispidum DC.
Common Name:Hispid Starbur; Bristly Starbur; Hispid Greenstripe
Habitat:Disturbed soils.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:**
Plant Notes:Hispid Starbur is an introduced herbaceous annual species in the Sunflower family (Asteraceae). It is native to South America. Hispid Starbur can be found in the southern half of the Alabama, particularly the Wiregrass region of southeast Alabama. It occurs in row crops (especially cotton and peanuts), in hay fields, on roadsides, on sand bars along rivers, and in other disturbed areas. It is an annual with a tap root. Plants are from 1-2 feet in height. Stems are erect, green in color, branched, and pubescent. Leaves are opposite, petiolate, obovate in outline, with entire margins. The leaves are pubescent and gland dotted. Flowers are produced in heads. The heads are located in the forks of the branches. The outer 4-6 phyllaries are large and leaf-like. The heads have 5-8 pistillate flowers surrounding 3-8 functionally staminate flowers. The corollas are yellow in color. The fruit is an achene that is enclosed in a prickly perigynium with 2 terminal spines. The United States Department of Agriculture has identified Hispid Starbur through its weed risk assessment program as a High-Risk species for the United States. It has spread through the movement of hay from one area to another, and by its prickly fruit becoming attached to clothing or animal fur.—A. Diamond.
Taxonomic Notes:**
Status:Not Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyASTERACEAE - Aster family
Genus Acanthospermum
Species Acanthospermum hispidum DC. - Hispid Starbur; Bristly Starbur; Hispid Greenstripe

Citation

Citation Acanthospermum hispidum A.P. de Candolle, Prodr. [A. P. de Candolle] 5: 522. 1836.
Basionym: **
Type: BRAZIL:

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Acanthospermum humile var. hispidum Acanthospermum humile (Swartz) de Candolle, var. hispidum (de Candolle) Kuntze, Revis. Gen. Pl. 1: 303. 1891.Acanthospermum hispidum de Candolle 1836. 

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, Butler, Clay, Coffee, Conecuh, Covington, Crenshaw, Dale, Escambia, Geneva, Henry, Houston, Montgomery, Pike

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: 1946 - 1994

Barcode / Accession No.
County
Coll. Date
Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
BRIT89115 Autauga 09 Jul 1987 Haynes, Robert R.
9226		 BRIT
Acanthospermum hispidum A.P. de Candolle
TROY000048834 Autauga 18 Jan 2019 Parker, Matthew R.
1865		 TROY
Acanthospermum hispidum A.P. de Candolle
UWAL0046355 Autauga 18 Jan 2019 Parker, Matthew R.
1865		 UWAL
Acanthospermum hispidum A.P. de Candolle
AUA000001117 Butler 19 Jul 1971 HESTER, D.
093		 AUA
ACANTHOSPERMUM HISPIDUM DC.
UWAL0000822 Butler 24 Oct 2009 Diamond, Alvin R.
21096		 UWAL
Acanthospermum hispidum DC.
TROY000029681 Butler 24 Oct 2009 Diamond, Alvin R.
21096		 TROY
Acanthospermum hispidum A.P. de Candolle
BRIT89116 Clay 17 Sep 2005 Kral, Robert
96843B		 BRIT
Acanthospermum hispidum A.P. de Candolle
BRIT89117 Coffee 17 Jul 1970 Kral, Robert
40122		 BRIT
Acanthospermum hispidum A.P. de Candolle
BRIT89118 Coffee 13 Aug 1973 Kral, Robert
51278		 BRIT
Acanthospermum hispidum A.P. de Candolle
AUA000001118 Coffee 13 Aug 1973 KRAL, ROBERT
51278		 AUA
ACANTHOSPERMUM HISPIDUM DC.
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