Podostemum ceratophyllum: Difference between revisions
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'''''Podostemum ceratophyllum''''', commonly known as the '''hornleaf riverweed''',<ref>{{cite web |url=https://www.wildflower.org/plants/result.php?id_plant=POCE3 |title=''Podostemum ceratophyllum'' |work=Plant Database |publisher=Lady Bird Johnson Wildflower Center |accessdate=27 September 2019}}</ref> is a species of aquatic [[plant]] in the [[Podostemaceae]] family. It is native to |
'''''Podostemum ceratophyllum''''', commonly known as the '''hornleaf riverweed''',<ref>{{cite web |url=https://www.wildflower.org/plants/result.php?id_plant=POCE3 |title=''Podostemum ceratophyllum'' |work=Plant Database |publisher=Lady Bird Johnson Wildflower Center |accessdate=27 September 2019}}</ref> is a species of submerged aquatic [[plant]] in the [[Podostemaceae]] family. It is native to eastern North America.<ref name=Flora>{{cite web |url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220010757 |title=''Podostemum ceratophyllum'' |publisher=Flora of North America |accessdate=27 September 2019}}</ref> where it grows on hard bottoms in swiftly flowing rivers and streams. |
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==Description== |
==Description== |
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==Distribution and habitat== |
==Distribution and habitat== |
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''Podostemum ceratophyllum'' is found in eastern North America. Its range extends from [[Ontario]] and [[Quebec]] southwards to [[Ohio]], [[Kentucky]], [[Tennessee]], [[Louisiana]], [[Mississippi]], [[Alabama]] and [[Georgia (U.S. state)|Georgia]]. It also occurs in the Dominican Republic and in Honduras. It grows in fast flowing rivers and streams on rocky [[Substrate (biology)|substrates]] at altitudes up to about {{convert|800|m|ft|-2|abbr=on}}.<ref name=Flora/> |
''Podostemum ceratophyllum'' is found in eastern North America. Its range extends from [[Ontario]] and [[Quebec]] southwards to [[Ohio]], [[Kentucky]], [[Tennessee]], [[Louisiana]], [[Mississippi]], [[Alabama]] and [[Georgia (U.S. state)|Georgia]]. It also occurs in the Dominican Republic and in Honduras. It grows in fast flowing rivers and streams on rocky [[Substrate (biology)|substrates]] at altitudes up to about {{convert|800|m|ft|-2|abbr=on}}.<ref name=Flora/> It is a foundation species in mid-sized montane rivers.<ref>{{cite journal |author=Wood, James; Freeman, Mary |year=2017 |title=Ecology of the macrophyte ''Podostemum ceratophyllum'' Michx. (Hornleaf riverweed), a widespread foundation species of eastern North American rivers |journal=Aquatic Botany |volume=139 |issue= |pages=165–174 |doi=10.1016/j.aquabot.2017.02.009}}</ref> |
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==References== |
==References== |
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Revision as of 20:05, 27 September 2019
| Podostemum ceratophyllum | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Podostemaceae |
| Genus: | Podostemum |
| Species: | P. ceratophyllum
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| Binomial name | |
| Podostemum ceratophyllum Michaux,, 1803
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Podostemum ceratophyllum, commonly known as the hornleaf riverweed,[1] is a species of submerged aquatic plant in the Podostemaceae family. It is native to eastern North America.[2] where it grows on hard bottoms in swiftly flowing rivers and streams.
Description
The roots are green, fleshy and flattened, spreading finger-like over the surface of the rock to provide anchorage. The stems are closely packed together, being 1 to 9 mm (0.04 to 0.35 in) apart. The leaves have basal sheaths and boat-shaped leaf bases which extend into stipules. The petioles are slender and the leaf blades linear. The inflorescences are lateral, each individual flower being bilaterally symmetric. Each flower has two scale-like tepals that are shorter than the ovary, and a further tepal on top of the andropodium, between the two stamens. The ovary is set on a pedicel and orientated obliquely. The fruit is a two-chambered capsule.[2][3]
Distribution and habitat
Podostemum ceratophyllum is found in eastern North America. Its range extends from Ontario and Quebec southwards to Ohio, Kentucky, Tennessee, Louisiana, Mississippi, Alabama and Georgia. It also occurs in the Dominican Republic and in Honduras. It grows in fast flowing rivers and streams on rocky substrates at altitudes up to about 800 m (2,600 ft).[2] It is a foundation species in mid-sized montane rivers.[4]
References
- ^ "Podostemum ceratophyllum". Plant Database. Lady Bird Johnson Wildflower Center. Retrieved 27 September 2019.
- ^ a b c "Podostemum ceratophyllum". Flora of North America. Retrieved 27 September 2019.
- ^ "Podostemum". Flora of North America. Retrieved 27 September 2019.
- ^ Wood, James; Freeman, Mary (2017). "Ecology of the macrophyte Podostemum ceratophyllum Michx. (Hornleaf riverweed), a widespread foundation species of eastern North American rivers". Aquatic Botany. 139: 165–174. doi:10.1016/j.aquabot.2017.02.009.
{{cite journal}}: CS1 maint: multiple names: authors list (link)