Hippuris vulgaris 杉葉藻

Common name: Mare's-tail
Scientific name: Hippuris vulgaris 杉葉藻
Genus: Hippuris 杉葉藻屬*
Family: Plantaginaceae 車前科, plantain family

Remarks*: Hippuris was previously the sole genus of the family Hippuridaceae 杉葉藻科. Following genetic research by the Angiosperm Phylogeny Group, it has now been transferred to the family Plantaginaceae, with Hippuridaceae being reduced to a synonym of Plantaginaceae.

Origin: native

Date: 5th May

[032] Rhizomatous, submerged or emergent aquatic perennial to 100cm. Found in shallow, usually calcium-rich lakes, ponds, slow-moving streams or dykes.

[027] Emergent stem stiff and erect.

[028] There are submerged and emergent stem.

[029] Leaves of submerged shoots longer, more flaccid.

[003]

[004] The horizontal rhizome.

[025] Emergent stem is about 15-30 cm above water surface.

[021] Leaves linear, sessile and entire.

[020] Leaves 6-12 in a whorl.

[014_1] Bisexual flowers are borne singly in the leaf axils. Perianth absent; 1stamen (red structure above) and 1 pointed style (white structure above).

[016_1] At the lower part of the emergent stem, flowers with 1 style and ovary could be seen.