包含約10個禾草物種的屬，原生於溫帶與熱帶淡水環境。

苦草屬(屬)　(P,,U,繁體中文-偏好,D,U,U)
k'u ts'ao shu (P,,U,韋氏拼音-偏好,UF,U,U)
kǔ cǎo shǔ (P,,U,漢語拼音-偏好,UF,U,U)
ku cao shu(P,,U,漢語拼音(無聲調)-偏好,UF,U,U)
Vallisneria(genus)　(P,,U,英文-偏好,D,U,U)
Vallisneria(genus)　(P,,U,拉丁語-偏好,D,U,U)
eelgrass(freshwater, genus)　(,U,英文-非偏好,AD,U,N)
eel-grass(freshwater, genus)　(,U,英文-非偏好,UF,U,N)
freshwater eelgrass(genus)　(,U,英文-非偏好,UF,U,U)
tape grass(genus)　(,U,英文-非偏好,UF,U,N)
tape-grass(,U,英文-非偏好,UF,U,U)

藝術與建築詞典根目錄
....代理者層面
........活體有機體
............真核生物 (域)
................植物界 (界)
....................被子植物門 (門)
........................百合綱 (綱)
............................澤瀉目 (目)
................................水鱉科 (科)
....................................苦草屬 (屬)

distinguished from....

大葉藻屬(屬)

英文....	Genus containing around 10 species of grass native to temperate and tropical freshwater environments.

苦草屬(屬)............	[AS-Academia Sinica]
.................	國家教育研究院－雙語詞彙、學術名詞暨辭書資訊網 June 16, 2015
Vallisneria(genus)............	[VP]
.................	ITIS Report: Taxonomy online (2005-)
.................	NCBI Taxonomy Browser (2008-)
.................	USDA Classification online (2008-)
.................	Encyclopedia Britannica Online (2002-)
eelgrass(freshwater, genus)............	[VP]
.................	Webster's Third New International Dictionary (1961)
.................	ITIS Report: Taxonomy online (2005-)
.................	NCBI Taxonomy Browser (2008-)
.................	USDA Classification online (2008-)
.................	Encyclopedia Britannica Online (2002-)
eel-grass(freshwater, genus)............	[VP]
.................	Oxford English Dictionary (1989)
freshwater eelgrass(genus)............	[VP]
.................	Encyclopedia Britannica Online (2002-)
tape grass(genus)............	[VP]
.................	Webster's Third New International Dictionary (1961)
.................	Encyclopedia Britannica Online (2002-)
tape-grass............	[VP]
.................	Oxford English Dictionary Online (2002-)

Getty AAT: 300375493 Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300375493
聯合目錄： 苦草屬 、k'u ts'ao shu 、kǔ cǎo shǔ 、ku cao shu 、Vallisneria 、eelgrass 、eel-grass 、freshwater eelgrass 、tape grass 、tape-grass 、Vallisneria