| Section 6 » Family Asteraceae |
Show/Hide Synonym
| taxonName | relationship | relatedTaxonName | relatedTaxonRefText | relComments |
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| Bidens comosa | < | Bidens comosa | Gleason and Cronquist (1991) | | | Bidens comosa | < | Bidens comosa | Fernald (1950) | | | Bidens comosa | < | Bidens comosa | Gleason (1952) | | | Bidens comosa | < | Bidens comosa | Small (1933, 1938) | | | Bidens comosa | < | Bidens tripartita | Flora of North America (1993b, 1997, 2000, 2002a, 2002b, 2003a, 2004b, 2005, 2006a, 2006b, 2006c, 2007a, 2009, 2010) | | | Bidens comosa | < | Bidens tripartita | | | | Bidens comosa | < | Bidens tripartita | | | | Bidens comosa | < | Bidens tripartita | | | | Bidens comosa | < | Bidens tripartita | Radford, Ahles, and Bell (1968) | | | Bidens comosa | < | Bidens tripartita | | | | Bidens comosa | = | Bidens tripartita ssp. comosa | | | | Source: Weakley's Flora |
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| Author | (A. Gray) Wiegand | |
| Distribution | Mostly in the Mountains and northern Piedmont; scarce in southern Piedmont.
Newf. to B.C., south to GA, TX, and CA. | |
| Abundance | Generally uncommon in the Mountains and the northern half of the Piedmont; rare in the southern Piedmont and in much of the foothills. As the taxonomy of this species is somewhat uncertain, it may be that the species is under-collected or simply is overlooked. The website editors have assigned a State Rank of S3, as this species is not in the NCNHP database. | |
| Habitat | Marshes, seepage bogs, wet meadows, ditches, clearings, and other disturbed (but usually damp) soil. | |
| Phenology | Flowering and fruiting August-October. | |
| Identification | Several of our beggarticks lack ray florets and can be difficult to tell apart without a good key. The website editors recommend Weakley (2018). Leaves of Strawstem Beggarticks are narrowly ovate or elliptical, simple (rarely with a pair of basal lobes), and toothed. Heads are produced singly at tips of stalks and have several leaflike bracts in a circle at the base of the head. As the ray flowers/florets are absent or scarce, the flowers will normally consist of just the yellow disk florets only. | |
| Taxonomic Comments | Some authors lump it within the cosmopolitan species B. tripartita, which usually has 3-lobed leaves. A synonym is B. connata, which Weakley (2020) elevates to species status; we remain skeptical.
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| Other Common Name(s) | Threelobe Beggarticks, Three-part Beggarticks, Leafy-bracted Beggarticks, Swamp Beggarticks. Despite the most prevalent common name, most leaves are simple and with no lobes. | |
| State Rank | [S3] | |
| Global Rank | G5T5 [G5] | |
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| US Status | | |
| USACE-agcp | | |
| USACE-emp | | |
