Synonym(s): Bidens aristosa var. fritcheyi, Bidens aristosa var. mutica, Bidens aristosa var. retrorsa, Bidens involucrata, Bidens polylepis, Bidens polylepis var. retrorsa
Image ID: 10407
Image by: Sorrie, Bruce A.
Image Collection: NCBG Digital Library
SCIENTIFIC NAME: Bidens aristosa
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2019-01-04
GENUS CODE: BIDEN GENUS SCIENTIFIC:Bidens GENUS AUTHORITY: L. GENUS COMMON: Beggarticks GENUS SUMMARY: A genus of about 240 species, herbs, cosmopolitan. Recent molecular studies suggest that the relationship between Bidens and Coreopsis is complex, and that changes in taxonomy will be needed to more accurately reflect relationships (Kim et al. 1999; Crawford & Mort 2005). GENUS IDENTIFICATION: Identification notes: The involucre of phyllaries is subtended by an additional series of bracteal structures, the calyculus. GENUS REFERENCES: Strother & Weedon in FNA (2006c); Cronquist (1980)=SE; Sherff & Alexander (1955)=Z; Ballard (1986)=Y. Key based on FNA.
FAMILY CODE: ASTERA FAMILY SCIENTIFIC:Asteraceae FAMILY AUTHORITY: Dumortier 1822 or COMPOSITAE Giseke 1792 FAMILY COMMON: Aster Family FAMILY SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution. FAMILY REFERENCE: Cronquist (1980)=SE throughout family treatment.
INTRO:Erect annual/biennial of marshes, wet meadows and ditches. STEMS: Stems much-branched, green or reddish and smooth or with fine, short hairs. LEAVES: Leaves opposite,petiolate, 1-6 in. long and pinnately divided into 5-7 lance-shaped or linear segments with pointed tips and toothed margins; segments sometimes again pinnately divided. INFLORESCENCE: FLOWERS:Composite flowers (heads) solitary or in small clusters, yellow, 2-3 in. wide, consisting of about 8 yellow ray florets encircling a centraldisk of yellow, tubular florets; 2 series of bracts, the inner membranous and the outer green, surround the base of the head. FRUITS:Fruit a flattened achene with 2 barbed awns that stick to fur and clothing. COMMENTS: HEIGHT: to 6 ft. DURATION:
Opposite LEAF COMPLEXITY: LEAF RETENTION: FLORAL CHARACTERISTICS
BLOOM TIME: Aug-Oct (-Nov).
BLOOM COLOR: Yellow
FRUITING PERIOD: DISTRIBUTION
HABITAT TYPE: Bogs/pocosins, Disturbed
NATIVE RANGE: eastern & central United States HORTICULTURAL
Plant Sale Text:
Bloom Table Text: This is one of the prettier and more drought tolerant Bidens spp. It blooms in marshes, meadows and bogs throughout North Carolina from August to October. Golden drifts of beggar's ticks add late-summer color to the landscape. The name, beggar's tick, refers to the seed shape. The achene has stiff awns that are barbed with two teeth-like structures which can easily latch onto humans or animals. This is a type of seed dispersal referred to as 'hitchhiking'. The caterpillars of the butterfly Nathalis iole (Dainty Sulfur) are known to favor the foliage of Bidens spp. as a food source and the seeds are popular with Bobwhite and Purple and Goldfinches.
NCBG Location: Totten Center Landscapes, Education Center Landscapes, Piedmont Habitat
This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast
SCIENTIFIC NAME: Bidens aristosa
COMMON NAME: Midwestern Tickseed-sunflower
SYNONYMY: [= C, FNA, G, GW, Pa, RAB, S, SE, Va, W; > B. aristosa var. aristosa - F, Il, S, Z; > B. aristosa var. fritcheyi Fernald - F, Il, Z; > B. aristosa var. mutica (A. Gray) Gattinger - F, Il, S, Z; < B. aristosa - K (also see B. polylepis)]
PHENOLOGY: Aug-Oct (-Nov).
HABITAT: Marshes, wet meadows, ditches.
COMMENTS: DE, MD, IL, and MO south to FL and TX (and adventive farther north).
RANGE MAP: Bidens aristosa.png
Key to Map SymbolsABOUT FAMILY (Weakley Flora) Asteraceae Dumortier 1822 or COMPOSITAE Giseke 1792 (Aster Family) SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution. REFERENCE: Cronquist (1980)=SE throughout family treatment.ABOUT GENUS (Weakley Flora) Bidens L. (Beggarticks) SUMMARY: A genus of about 240 species, herbs, cosmopolitan. Recent molecular studies suggest that the relationship between Bidens and Coreopsis is complex, and that changes in taxonomy will be needed to more accurately reflect relationships (Kim et al. 1999; Crawford & Mort 2005). REFERENCE: Strother & Weedon in FNA (2006c); Cronquist (1980)=SE; Sherff & Alexander (1955)=Z; Ballard (1986)=Y. Key based on FNA.
SERNEC: Find Bidens aristosa in Southeast Regional Network of Experts and Collections (if available) UNC SERNEC: Find Bidens aristosa in
University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)