Difference between revisions of "Bidens alba"
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==Ecology== | ==Ecology== | ||
===Habitat=== <!--Natural communities, human disturbed habitats, topography, hydrology, soils, light, fire regime requirements for removal of competition, etc.--> | ===Habitat=== <!--Natural communities, human disturbed habitats, topography, hydrology, soils, light, fire regime requirements for removal of competition, etc.--> | ||
| − | In the Coastal Plain in Florida, ''B. alba'' can be found in pine-oak woodlands | + | In the Coastal Plain in Florida, ''B. alba'' can be found in pine-oak woodlands<ref name="FSU">Florida State University Robert K. Godfrey Herbarium database. URL: [http://herbarium.bio.fsu.edu http://herbarium.bio.fsu.edu]. Last accessed: October 2015. Collectors: Loran C. Anderson, Ed Keppner, Lisa Keppner, R. Kral, Annie Schmidt, Kyle W. Shankle. States and Counties: Florida: Bay, Gulf, Indian River, Leon, Liberty, Martin, Wakulla. Compiled by Tall Timbers Research Station and Land Conservancy. |
| + | </ref>. It has been found to be common in disturbed areas such as railroads, citrus orchards, soil dumps and empty lots<ref name="Ramirez">Ramirez, A. H. M., A. J. Jhala, et al. (2012). "Germination and Emergence Characteristics of Common Beggar's-Tick (Bidens alba)." Weed Science 60(3): 374-378. | ||
| + | </ref><ref name="FSU"></ref>. It has been observed to grow in loamy sand<ref name="FSU"></ref>. Associated species include ''Andropogon, Euphorbia,'' and ''Ambrosia''<ref name="FSU"></ref>. | ||
===Phenology=== <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers. Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ --> | ===Phenology=== <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers. Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ --> | ||
| − | Flowers January and May through November | + | Flowers January and May through November<ref name="FSU"></ref>. |
===Seed dispersal=== | ===Seed dispersal=== | ||
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===Seed bank and germination=== | ===Seed bank and germination=== | ||
| − | Under cooler conditions, newly added seeds in the seed bank have a slightly higher germination rates than seeds that have resided in the seed bank for a longer time | + | Under cooler conditions, newly added seeds in the seed bank have a slightly higher germination rates than seeds that have resided in the seed bank for a longer time<ref name="Ramirez"></ref>. Germination has also been observed at a wide range of temperatures, pH and salt concentrations; however, is inhibited at highly acidic and moderately alkaline soils and extreme water stress<ref name="Ramirez"></ref>. Germination is not sensitive to light<ref name="Ramirez"></ref>. |
<!--===Fire ecology===--> <!--Fire tolerance, fire dependence, adaptive fire responses--> | <!--===Fire ecology===--> <!--Fire tolerance, fire dependence, adaptive fire responses--> | ||
===Pollination=== | ===Pollination=== | ||
| − | The following Hymenoptera families and species were observed visiting flowers of ''Bidens alba'' at Archbold Biological Station | + | The following Hymenoptera families and species were observed visiting flowers of ''Bidens alba'' at Archbold Biological Station<ref>Deyrup, M.A. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.</ref>: |
Apidae: ''Apis mellifera, Bombus impatiens, B. pennsylvanicus, Mellisodes communis, M. comptoides, Nomada fervida'' | Apidae: ''Apis mellifera, Bombus impatiens, B. pennsylvanicus, Mellisodes communis, M. comptoides, Nomada fervida'' | ||
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<!--===Use by animals===--><!--Herbivory, granivory, insect hosting, etc.--> | <!--===Use by animals===--><!--Herbivory, granivory, insect hosting, etc.--> | ||
===Diseases and parasites=== | ===Diseases and parasites=== | ||
| − | ''Crypticerya genistae'' is an invasive scale insect native to Brazil and is found in association with ''B. alba'' | + | ''Crypticerya genistae'' is an invasive scale insect native to Brazil and is found in association with ''B. alba''<ref>Hodges, G. S., Hodges, A. C., & Unruh, C. M.. (2008). A New Exotic Pest for Florida's Natural Areas: Crypticerya genistae (Hemiptera: Monophlebidae). The Florida Entomologist, 91(2), 335–337. Retrieved from http://www.jstor.org/stable/20065981</ref>. |
| − | Morgan and Overholt (2005) found that the Brazilian pepper tree (''Schinus terebinthifolius'') had aqueous extracts that negatively affected the the growth of ''B. alba''. | + | Morgan and Overholt (2005) found that the Brazilian pepper tree (''Schinus terebinthifolius'') had aqueous extracts that negatively affected the the growth of ''B. alba''.<ref>Morgan, E. C., & Overholt, W. A.. (2005). Potential Allelopathic Effects of Brazilian Pepper (Schinus terebinthifolius Raddi, Anacardiaceae) Aqueous Extract on Germination and Growth of Selected Florida Native Plants. Journal of the Torrey Botanical Society, 132(1), 11–15. Retrieved from http://www.jstor.org/stable/20063740 |
| + | </ref> | ||
<!--==Conservation and Management==--> | <!--==Conservation and Management==--> | ||
<!--==Cultivation and restoration==--> | <!--==Cultivation and restoration==--> | ||
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==References and notes== | ==References and notes== | ||
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Revision as of 13:28, 18 May 2016
| Bidens alba | |
|---|---|
| |
| Photo taken by Michelle Smith | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta - Flowering plants |
| Class: | Magnoliopsida - Dicotyledons |
| Order: | Asterales |
| Family: | Asteraceae ⁄ Compositae |
| Genus: | Bidens |
| Species: | B. alba |
| Binomial name | |
| Bidens alba (L.) DC. | |
| |
| Natural range of Bidens alba from USDA NRCS Plants Database. | |
Common name: Romerillo
Contents
Taxonomic notes
Synonyms: B. pilosa Linnaeus; B. alba; B. pilosa Linnaeus var. radiata Schultz ‘Bipontinus’
Description
B. alba is a weedy annual or a short lived perennial that has vertical roots [1] [2]. Leaves are arranged opposite with depressed midveins [1].
Ecology
Habitat
In the Coastal Plain in Florida, B. alba can be found in pine-oak woodlands[3]. It has been found to be common in disturbed areas such as railroads, citrus orchards, soil dumps and empty lots[4][3]. It has been observed to grow in loamy sand[3]. Associated species include Andropogon, Euphorbia, and Ambrosia[3].
Phenology
Flowers January and May through November[3].
Seed dispersal
The seed has two prongs that stick on to passing by animals, making dispersal zoochorous [2].
Seed bank and germination
Under cooler conditions, newly added seeds in the seed bank have a slightly higher germination rates than seeds that have resided in the seed bank for a longer time[4]. Germination has also been observed at a wide range of temperatures, pH and salt concentrations; however, is inhibited at highly acidic and moderately alkaline soils and extreme water stress[4]. Germination is not sensitive to light[4].
Pollination
The following Hymenoptera families and species were observed visiting flowers of Bidens alba at Archbold Biological Station[5]:
Apidae: Apis mellifera, Bombus impatiens, B. pennsylvanicus, Mellisodes communis, M. comptoides, Nomada fervida
Halictidae: Agapostemon splendens, Augochlora pura, Augochlorella aurata, A. gratiosa, Augochloropsis metallica, Dieunomia heteropoda, Halictus poeyi, Lasioglossum pectoralis
Megachilidae: Anthidiellum notatum rufomaculatum, A. perplexum, Coelioxys dolichos, C. modesta, C. octodentata, C. sayi, Dolichostelis louisae, Heriades leavitti, Megachile albitarsis, M. brevis pseudobrevis, M. exilis parexilis, M. inimica, M. mendica, M. petulans, M. rugifrons, M. xylocopoides
Sphecidae: Ammophila pictipennis, A. urnaria, Bicyrtes capnoptera, Cerceris blakei, Isodontia exornata, Microbembex monodonta, Philanthus ventilabris
Vespidae: Eumenes smithii, Pachodynerus erynnis, Stenodynerus fundatiformis
Diseases and parasites
Crypticerya genistae is an invasive scale insect native to Brazil and is found in association with B. alba[6].
Morgan and Overholt (2005) found that the Brazilian pepper tree (Schinus terebinthifolius) had aqueous extracts that negatively affected the the growth of B. alba.[7]
Photo Gallery
Bidens alba with seeds Photo by Michelle Smith
References and notes
- ↑ 1.0 1.1 [Floridata] Accessed December 2, 2015
- ↑ 2.0 2.1 [Eat the Weeds] Accessed December 2, 2015
- ↑ 3.0 3.1 3.2 3.3 3.4 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: October 2015. Collectors: Loran C. Anderson, Ed Keppner, Lisa Keppner, R. Kral, Annie Schmidt, Kyle W. Shankle. States and Counties: Florida: Bay, Gulf, Indian River, Leon, Liberty, Martin, Wakulla. Compiled by Tall Timbers Research Station and Land Conservancy.
- ↑ 4.0 4.1 4.2 4.3 Ramirez, A. H. M., A. J. Jhala, et al. (2012). "Germination and Emergence Characteristics of Common Beggar's-Tick (Bidens alba)." Weed Science 60(3): 374-378.
- ↑ Deyrup, M.A. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.
- ↑ Hodges, G. S., Hodges, A. C., & Unruh, C. M.. (2008). A New Exotic Pest for Florida's Natural Areas: Crypticerya genistae (Hemiptera: Monophlebidae). The Florida Entomologist, 91(2), 335–337. Retrieved from http://www.jstor.org/stable/20065981
- ↑ Morgan, E. C., & Overholt, W. A.. (2005). Potential Allelopathic Effects of Brazilian Pepper (Schinus terebinthifolius Raddi, Anacardiaceae) Aqueous Extract on Germination and Growth of Selected Florida Native Plants. Journal of the Torrey Botanical Society, 132(1), 11–15. Retrieved from http://www.jstor.org/stable/20063740
