Encyclopedia of Life · EOL (see source)
Najas
Sign in to saveNajas, the water-nymphs or naiads, is a genus of aquatic plants. It is cosmopolitan in distribution, first described for modern science by Linnaeus in 1753. Until 1997, it was rarely placed in the Hydrocharitaceae, and was often taken as constituting (by itself) the family Najadaceae.
Species
naiads
Genus
- PhylumTracheophyta
- ClassMagnoliopsida
- OrderAlismatales
- FamilyHydrocharitaceae
主要种 Najas filifoliaNajas flexilis纤细茨藻Najas gracillima草茨藻Najas grmineaNajas guadelupensis日本茨藻Najas japonica茨藻Najas marina小茨藻Najas minorNajas wrightiana 茨藻属有约35种，广泛分布于全球各地，也有的分类学家单独将其列为茨藻科。 茨藻属植物为沉水草本植物，可以生长在淡水或咸水中，茎纤细有分枝；叶对生无柄，线形，有齿；花小，单性同株或很少异株，腋生，雄花几乎无柄，包藏在一个瓶状的苞内，花被2裂；雄蕊1，雌花无花被；果实不开裂，常包藏于叶鞘内。 1998年的根据基因分类的APG 分类法和2003年经过修订的的APG II 分类法将其列入泽泻目中。 参考文献 ITIS Standard Report Page: Najas. [2007-05-10]. 外部链接 在L. Watson和M.J. Dallwitz (1992年)《有花植物分科》中的茨藻科（2006年3月第九版） 日本茨藻 取自“https://zh.wikipedia.org/w/index.php?title=茨藻属&oldid=44868736” 分类： 茨藻属 卡尔·林奈命名的生物分类 隐藏分类：本地相关图片与维基数据相同
via · Kew POWO
Wikidata facts
- Image
- Illustration Najas marina0.jpg
Show 4 more facts
- taxon name
- Najas
- Commons category
- Najas
- taxon common name
- 茨藻属
Sources (3)
via Wikidata · CC0
~3 min read
Article
2 sectionsContents
- References
- External links
Najas, the water-nymphs or naiads, is a genus of aquatic plants. It is cosmopolitan in distribution, first described for modern science by Linnaeus in 1753. Until 1997, it was rarely placed in the Hydrocharitaceae, and was often taken as constituting (by itself) the family Najadaceae.
The APG II system, of 2003 (unchanged from the APG system, of 1998), places the genus in family Hydrocharitaceae, in the order Alismatales of the monocots.