Bidens

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Bidens

 

(beggar-ticks, bur marigold, or sticktight), a genus of annual or perennial herbs of the family Compositae. The opposite leaves vary from entire to pinnatisect. The disk flowers are bisexual; sometimes there are infertile ray flowers. The flowers are in heads generally borne singly on the apices of the stem and the branches. The fruit is an achene, with two to four retrosely barbed bristles on the apex.

There are more than 200 species, which are distributed worldwide but mainly in the Americas. The USSR has eight species. B. tripartita grows along bodies of water marshes, ditches, moist wastelands, gardens, and fields. The plant sometimes forms a dense cover. It contains essential oil; mucilaginous, bitter, and tannic substances; carotene; and vitamin C. In folk medicine the leaves and stem apices are used in baths to heal various diatheses with rashes; the herb is also used in an antiscrofulous mixture.

REFERENCES

Atlas lekarstvennykh rastenii SSSR. Moscow, 1962.
Kotukov, G. N. Kul’tiviruemye i dikorastushchie lekarstvennye rasteniia: Spravochnik. Kiev, 1974. (Translated from Ukrainian.)
References in periodicals archive ?
Bidens tripartita L.: threelobe beggarticks. Frequent on the banks of Sugar Creek and ravine bottoms; rare in upland forest openings; 606; 593; &; C = 2.
However, this harmful effect on beggartick germination above 15[degrees]C was only observed in seeds from Sao Joaquim da Barra.
Evaluating CHL means of brachiaria plants within each density, it was verified that they showed higher values when they were in competition only with bean (Brachiaria + bean) differing from the other arrangements where it was cultivated with beggartick and in the arrangement where the three species were present (Table 1).
September 21: The Beggartick Moon enters its second quarter at
Competitiveness of ALS inhibitor resistant and susceptible biotypes of greater beggarticks (Bidens subalternans).
Consumption (%) Length of test (h) Foliage color Creeping indigo 48 green 8.5 [+ or -] 6.8 yellow 4.6 [+ or -] 5.9 t 1.144 df 12 P 0.275 96 green 14.6 [+ or -] 8.8 yellow 64.5 [+ or -] 25.1 t 4.587 df 12 P <0.001 Consumption (%) Length of test (h) Perennial peanut Wild poinsettia 48 1.4 [+ or -] 4.1 10.9 [+ or -] 18.7 1.4 [+ or -] 3.0 9.2 [+ or -]15.5 0.017 0.419 13 14 0.987 0.681 96 14.1 [+ or -] 20.2 12.1 [+ or -] 23.5 63.6 [+ or -] 35.3 36.1 [+ or -] 34.3 4.207 2.775 10 13 <0.002 0.016 Consumption (%) Length of test (h) Common beggarticks 48 2.3 [+ or -] 4.8 1.5 [+ or -] 3.7 0.722 12 0.484 96 5.4 [+ or -] 7.2 82.7 [+ or -] 13.2 11.890 12 <0.001 Statistics are t, df, and P values from paired t-tests at 48 and 96 h.
Other species with moderate to high sample frequency only provided minor ground cover: Bidens aristosa (bearded beggarticks), Boehmeria cylindrica (smallspike false nettle), Brunnichia ovata (American buckwheatvine), and Mikania scandens (climbing hempvine).
Competitiveness of ALS inhibitors resistant and susceptible biotypes of greater beggarticks (Bidens subalternans).
Beggarticks Asteraceae Brachiaria plantaginea Marmalade grass Poaceae Richardia brasiliensis Brazilian calla-lily Rubiaceae Solanum americanum Glossy nightshade Solanaceae Amaranthus retroflexus Redroot pigweed Amaranthaceae 2014 Bindes spp.
reticulata Tangelo Discorea bulbifera Air potato Citrus sinensis Orange Rubus cuneifolius Sand blackberry Baccharis halmifolia Groundsel Smilax smalli Lance-leaf greenbrier Passiflora incarnata Passion vine Weeds Poinsettia cyathophora Painted leaf Cnidoscolus stimulosus Tread softly Phyllanthus urinaria Chamber bitter Desmodium tortuosum Florida beggarweed Oldenlandia corymbosa Old world diamond-flower Richardia scabra Florida pusley Digitaria ischaemum Smooth crabgrass Chenopodium ambrosioides Mexican tea Phytolacca americana Pokeweed Melothria pendula Creeping cucumber Cyperus globulosus Globe sedge Bidens alba Beggarticks Ambrosia artemisiifolia Common ragweed Amaranthus hybridus Smooth pigweed Semiaquatic or aquatic plants Colocasia esculenta Wild taro Typha sp.
5: The first of the beggarticks and bur marigolds bloom in the wetlands.