Bidens aristosa (Michaux) Britton. Common name: Midwestern Tickseed-sunflower, Ozark Tickseed-sunflower. Phenology: Aug-Oct (-Nov). Habitat: Marshes, wet meadows, ditches, bogs. Distribution: DE, MD, IL, and MO south to GA, AL, FL (?), and TX (and adventive farther north); the pre-Columbian distribution is uncertain, and portions of the eastern range of the species may be only from, expansion from a more midwestern distribution.
Origin/Endemic status: Native
Synonymy ⓘ: = C, FNA21, G, GW2, Mi, NE, NY, Oh3, Ok, Pa, RAB, SE1, Tn, Va, W; = n/a — Tat; < Bidens aristosa (Michx.) Britton — Ar, K4, NcTx; > Bidens aristosa (Michx.) Britton var. aristosa — F, Il, S, Sherff & Alexander (1955); > Bidens aristosa (Michx.) Britton var. fritcheyi Fernald — F, Il, Sherff & Alexander (1955); > Bidens aristosa (Michx.) Britton var. mutica (A.Gray) Gatt. — F, Il, S, Sherff & Alexander (1955); Coreopsis aristosa Michaux. Basionym: Coreopsis aristosa Michx. 1803
Links to other floras: = Bidens aristosa - FNA21
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW (taxonomic split from wetland indicator species)
- Eastern Mountains and Piedmont: FACW (taxonomic split from wetland indicator species)
- Great Plains: FACW (taxonomic split from wetland indicator species)
- Midwest: FACW (taxonomic split from wetland indicator species)
- Northcentral & Northeast: FACW (taxonomic split from wetland indicator species)
Heliophily ⓘ: 9
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© Erik Danielson source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Emily Oglesby | Original Image ⭷
© Joey Shaw source | Original Image ⭷
© Jay Horn source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷Feedback
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Horticultural Information
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.
Inforescence:
Flowers: Composite flowers (heads) solitary or in small clusters, yellow, 2-3 in. wide, consisting of about 8 yellow ray florets encircling a central disk 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.
plant sale 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.
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.
description: 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 central disk 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:
cultural notes:
germination code: 5
native range: eastern & central United States
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