Blyxa japonica
{{Short description|Species of plant}}
{{Speciesbox
| image =
| image_alt =
| image_caption =
| status = LC
| status_system = IUCN3.1
| genus = Blyxa
| species = japonica
| authority = (Miq.) Maxim. ex Asch. & Gürke
| subdivision = {{Species list
|Blyxa japonica var. alternifolia|(Miq.) C.D.K.Cook & Luond
|Blyxa japonica var. japonica|}}
| subdivision_ranks = Varities
| subdivision_ref = {{cite POWO |id=431629-1 |title=Blyxa japonica (Miq.) Maxim. ex Asch. & Gürke |access-date=23 March 2025}}
| synonyms = {{Species list
|Hydrilla japonica|Miq.}}
{{Species list
|hidden=yes
|header=var. alternifolia{{cite POWO |id=921835-1 |title=Blyxa japonica var. alternifolia (Miq.) C.D.K.Cook & Luond |access-date=23 March 2025}}
|Hydrilla alternifolia|Miq.
|Enhydrias angustipetala|Ridl.
|Blyxa angustipetala|(Ridl.) Masam.
|Blyxa alternifolia|(Miq.) Hartog}}
{{Species list
|hidden=yes
|header=var. japonica{{cite POWO |id=77171272-1 |title=Blyxa japonica var. japonica |access-date=23 March 2025}}
|Blyxa caulescens|Maxim. ex Matsum.
|Blyxa leiocarpa|Maxim. ex Matsum.
|Diplosiphon caulescens|Maxim. ex Matsum.
|Diplosiphon leiocarpa|Maxim. ex Matsum.
|Blyxa laevissima|Hayata
|Enhydrias angustipetala var. latifolia|Ridl.
|Blyxa angustipetala var. laevissima|(Hayata) Masam.}}
}}
Blyixa japonica is a species of plant in the family Hydrocharitaceae.{{cite journal |last1=Borthakur |first1=Sashin Kumar |title=Rediscovery of Blyxa japonica (Miquel) Maximowicz ex Ascherson et Gürke -a hydrophyte from Lakhimpur district of Assam, India |journal=Pleione |date=2012 |volume=6 |issue=2 |pages=435–437 |url=https://www.academia.edu/32918811 |access-date=3 September 2023}} It is known as Japanese blyxa or dwarf Asian grass.
Description
The flowers are bisexual, actinomorphic and have numerous ovules. It has whorled leaves.{{cite journal |last1=Tang |first1=Sai-chun |last2=Wang |first2=Yu-guo |last3=Xia |first3=Nian-he |last4=Liu |first4=Yang |last5=Wei |first5=Fa-nan |last6=Wen |first6=He-qun |title=Floral Organogenesis of Blyxa japonica (Hydrocharitaceae) |journal=Journal of Tropical and Subtropical Botany |date=2002 |volume=10 |issue=2 |pages=139–144 |doi=10.3969/j.issn.1005-3395.2002.2.007 |doi-broken-date=1 November 2024 |url=http://jtsb.ijournals.cn/jtsb_en/article/abstract/200202007?st=article_issue |access-date=3 September 2023 |language=en |issn=1005-3395}} It can be told from the genus Limnobium by its pollen, which has spine-like projections.{{cite journal |last1=D.K. Cook |first1=Christopher |last2=Lüönd |first2=Ruth |title=A revision of the genus Blyxa (Hydrocharitaceae) |journal=Aquatic Botany |date=1 January 1983 |volume=15 |issue=1 |pages=1–52 |doi=10.1016/0304-3770(83)90098-0 |bibcode=1983AqBot..15....1D |url=https://www.sciencedirect.com/science/article/abs/pii/0304377083900980 |access-date=3 September 2023 |issn=0304-3770}}
Distribution
The species is native to China, Taiwan, Japan, and Papua New Guinea.{{cite web |last1=Millar |first1=Bryce |title=Blyxa japonica |url=https://www.tfhmagazine.com/articles/aquatic-plants/blyxa-japonica |website=Tropical Fish Hobbyist Magazine |access-date=3 September 2023}} It has naturalized in Italy. In the wild, the species is found in shallow, stagnant water such as rice paddies.{{cite book |last1=Kasselmann |first1=Christel |title=Aquarium Plants |date=2020 |location=Teltow, Germany |isbn=978-3-00-064912-7 |page=180}}
Cultivation
The species, along with other members of the genus such as Blyxa aubertii, are common in the aquarium trade. B. japonica is difficult and demanding to grow.
B. japonica var. japonica, B. j. var. alternifolia, and B. j. var. recurvifolia are all found in cultivation.
References
{{Reflist}}
{{Taxonbar|from=Q4411322}}
Category:Least concern biota of Asia
Category:Taxa named by Friedrich Anton Wilhelm Miquel
Category:Plants described in 1866
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