Hydrocotyle
| Hydrocotyle | |
|---|---|
| |
| Hydrocotyle bowlesioides | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Apiales |
| Family: | Araliaceae |
| Subfamily: | Hydrocotyloideae |
| Genus: | Hydrocotyle L.[1][2][3] |
| Synonyms[4] | |
| |
Hydrocotyle, also called floating pennywort,[5] water pennywort,[6] Indian pennywort, dollar weed, marsh penny, thick-leaved pennywort and white rot,[7] is a genus of prostrate, perennial[8] aquatic or semi-aquatic plants formerly classified in the family Apiaceae, now in the family Araliaceae.[3]
Description
[edit]Water pennyworts, Hydrocotyles, are very common.[clarification needed] They have long creeping stems that often form dense mats, often in and near ponds, lakes, rivers, and marshes,[6] and some species in coastal areas by the sea.[9][10]
- Leaves
- Simple, with small leafy outgrowth at the base, kidney shaped to round. Leaf edges are scalloped. The leaf surfaces of Hydrocotyle are prime grounds for oviposition of many butterfly species, such as Anartia fatima.
- Flowers
- Flower clusters are simple and flat-topped or rounded. Involucral bracts at the base of each flower. Indistinct sepals.
Flowering Hydrocotyle leucocephala
Flowering Hydrocotyle vulgaris
- Fruits and reproduction
- Elliptical to round with thin ridges and no oil tubes (vitta) which is characteristic in the fruit of umbelliferous plants.[8]
- The prostrate plants reproduce by seed and by sending roots from stem nodes.[11]
Selected species
[edit]There are over 280 species recognised in the genus Hydrocotyle that grow in tropical and temperate regions worldwide.[8] A few species have entered the world of cultivated ornamental aquatics.[12] A list of selected species:[1][2][3][13][14][15][16]
- Hydrocotyle americana — American marshpennywort
- Hydrocotyle bonariensis — largeleaf pennywort
- Hydrocotyle bowlesioides — largeleaf marshpennywort
- Hydrocotyle heteromeria — waxweed
- Hydrocotyle geraniifolia
- Hydrocotyle hexagona
- Hydrocotyle hirta
- Hydrocotyle hitchcockii
- Hydrocotyle javanica
- Hydrocotyle laxiflora
- Hydrocotyle leucocephala — Brazilian pennywort
- Hydrocotyle moschata — musky marshpennywort
- Hydrocotyle phoenix — fire pennywort
- Hydrocotyle prolifera — whorled marshpennywort
- Hydrocotyle pusilla — tropical marshpennywort
- Hydrocotyle ranunculoides — floating marshpennywort, floating marshpennywort, floating pennyroyal
- Hydrocotyle sibthorpioides — lawn marshpennywort
- Hydrocotyle tambalomaensis
- Hydrocotyle tripartita
- Hydrocotyle umbellata — manyflower marshpennywort, umbrella pennyroyal
- Hydrocotyle verticillata — whorled marshpennywort, whorled marshpennywort, whorled pennyroyal
- Hydrocotyle vulgaris — marsh pennywort, common pennywort
- Hydrocotyle yanghuangensis
Distribution
[edit]Hydrocotyleae grow in wet and damp places in the tropics and the temperate zones.[8]
Fossil record
[edit]One fossil fruit of a Hydrocotyle sp. has been extracted from borehole samples of the Middle Miocene fresh water deposits in Nowy Sacz Basin, West Carpathians, Poland.[17]
References
[edit]- ^ a b "Hydrocotyle L." African Plants Database. South African National Biodiversity Institute, the Conservatoire et Jardin botaniques de la Ville de Genève and Tela Botanica. Archived from the original on January 1, 2013. Retrieved 2008-04-25.
- ^ a b Natural Resources Conservation Service (NRCS). "Classification for Kingdom Plantae Down to Genus Hydrocotyle L." The PLANTS Database. United States Department of Agriculture. Retrieved 2008-04-25.
- ^ a b c Germplasm Resources Information Network (GRIN) (2006-04-02). "Genus: Hydrocotyle L." Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland. Archived from the original on 2009-05-08. Retrieved 2008-04-25.
- ^ "Hydrocotyle Tourn. ex L." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2022-12-29.[dead link]
- ^ "Floating pennywort". Invasive Species. 2021. Retrieved 17 May 2022.
- ^ a b University of Florida Herbarium (2005). "Hydrocotyle species". Aquatic, Wetland and Invasive Plant Particulars and Photographs. University of Florida, Center for Aquatic and Invasive Plants. Archived from the original on 2008-04-20. Retrieved 2008-04-25.
- ^ M. Grieve (1931). "Hydrocotyle". A Modern Herbal. © Copyright Protected 1995-2008 Botanical.com. Retrieved 2008-04-25.
- ^ a b c d Flora of China. "Hydrocotyle Linn". Family List. Retrieved 2008-04-25.
- ^ Aluka. "Hydrocotyle bonariensis Lam. [family UMBELLIFERAE]". African Plants. Ithaka Harbors, Inc. Archived from the original on August 1, 2013. Retrieved 2008-04-25.
- ^ Klein, Alecsandro Schardosim; Citadini-Zanette, Vanilde; dos Santos, Robson (September 2007). "Florística e estrutura comunitária de restinga herbácea no município de Araranguá, Santa Catarina". Biotemas (in Portuguese). 20 (3): 15–26.
- ^ Watson, Mark F. "Hydrocotyle L". Flora of Bhutan. Retrieved 2008-04-25.
- ^ "Pennywort, Genus Hydrocotyle". The Aquarium Gardener Series. Retrieved 2008-04-25.
- ^ Flora of China. "1. Hydrocotyle Linnaeus". Family List. 14. Retrieved 2008-04-25.
- ^ Taiwan Plant Names. "Hydrocotyle Linn". Family List. III. Retrieved 2008-04-25.
- ^ Madagascar Catalog. "Hydrocotyle L." Genus Page. Retrieved 2008-04-25.
- ^ "hydrocotyle". New Zealand Weeds. Massey University: Institute of Natural Resources. Archived from the original on 2008-10-14. Retrieved 2008-04-25.
- ^ Łańcucka-Środoniowa M.: Macroscopic plant remains from the freshwater Miocene of the Nowy Sącz Basin (West Carpathians, Poland) [Szczątki makroskopowe roślin z miocenu słodkowodnego Kotliny Sądeckiej (Karpaty Zachodnie, Polska)]. Acta Palaeobotanica 1979 20 (1): 3-117.
External links
[edit]
Wikimedia Commons has media related to Hydrocotyle.
- "Hydrocotyle". Integrated Taxonomic Information System. Retrieved 25 April 2008.
- Lamarck, Jean Baptiste Pierre Antoine de Monet de; Poiret, Jean Louis Marie (1783–1808). "HYD". Encyclopédie méthodique: botanique /Par m. le chevalier de Lamarck. Vol. 3. QK7.L36 1783-1808.
