Abstract:Chromosome counts for 30 collections representing 21 species examined by the authors are reported. Of these, eight species counts are a first report; the others are confirmation of earlier reports. The genus Desmodium is shown to be dibasic with base chromosome numbers of x = 10 and x = 11.
“…Florida beggarweed is a member of the Fabaceae (Leguminosae) family, Papilionoideae subfamily, the tribe Hedysareae, and subtribe Desmodium (Rotar and Urata 1967). Of the 300 species of Desmodium distributed throughout the world, only 23 species occur in the southeastern United States (Radford et al 1968;Schubert 1980).…”
Section: Taxonomymentioning
confidence: 99%
“…As with many of the Desmodium species, the chromosome number for Florida beggarweed has been determined to be 2n ϭ 22 in plants collected in Georgia (J. Cardina, unpublished) as well as Puerto Rico and Uruguay (Rotar and Urata 1967).…”
Florida beggarweed is native to the Western Hemisphere but is naturalized around the world. During the last century, the mechanization of agriculture has transitioned Florida beggarweed from an important forage component to a weed of significance in the coastal plain of the southeast United States. This herbaceous annual is naturalized and found in fields and disturbed areas throughout the southern United States. The characteristics that made Florida beggarweed a good forage crop also make it a formidable weed. This review describes the importance of Florida beggarweed as a weed in the southern United States and the taxonomy of this species and details the distribution throughout the world and within the United States. The ecology of Florida beggarweed and its interactions with crop plants, insects, nematodes, and plant pathogens also are summarized. Finally, management of Florida beggarweed in agricultural systems using cultural practices and herbicides is reviewed.
“…Florida beggarweed is a member of the Fabaceae (Leguminosae) family, Papilionoideae subfamily, the tribe Hedysareae, and subtribe Desmodium (Rotar and Urata 1967). Of the 300 species of Desmodium distributed throughout the world, only 23 species occur in the southeastern United States (Radford et al 1968;Schubert 1980).…”
Section: Taxonomymentioning
confidence: 99%
“…As with many of the Desmodium species, the chromosome number for Florida beggarweed has been determined to be 2n ϭ 22 in plants collected in Georgia (J. Cardina, unpublished) as well as Puerto Rico and Uruguay (Rotar and Urata 1967).…”
Florida beggarweed is native to the Western Hemisphere but is naturalized around the world. During the last century, the mechanization of agriculture has transitioned Florida beggarweed from an important forage component to a weed of significance in the coastal plain of the southeast United States. This herbaceous annual is naturalized and found in fields and disturbed areas throughout the southern United States. The characteristics that made Florida beggarweed a good forage crop also make it a formidable weed. This review describes the importance of Florida beggarweed as a weed in the southern United States and the taxonomy of this species and details the distribution throughout the world and within the United States. The ecology of Florida beggarweed and its interactions with crop plants, insects, nematodes, and plant pathogens also are summarized. Finally, management of Florida beggarweed in agricultural systems using cultural practices and herbicides is reviewed.
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