Comments

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The character of leaves spirally arranged seems not to be true for Hippuris spiralis. In fact, in that entity the leaves are whorled but the whorls are oblique. This variation may be caused by twisted shoots, especially in running water. Terminal subshoots are a common variant in H. vulgaris. For these reasons, both H. spiralis and H. vulgaris var. ramificans are treated here as synonyms of H. vulgaris.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 13: 433 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of China @ eFloras.org
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Wu Zhengyi, Peter H. Raven & Hong Deyuan
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eFloras.org
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Description

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Variable, heterophyllous, wholly or partly submerged. Rhizome creeping, stout. Leaves 6-12 in a whorl, sessile, 6-16 mm long, 1-2 mm broad, entire, glabrous; submerged leaves longer and thinner. Flowers in the axils of short rigid emergent leaves. Anther bilobed. Fruit ovoid, 1.5-2 mm long, 1-1.5 mm broad.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 1 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of Pakistan @ eFloras.org
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S. I. Ali & M. Qaiser
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eFloras.org
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Description

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Stems 10-150 cm or longer in running water. Leaves (4-)8-12-whorled, often spreading, lanceolate to linear, 1.5-6 × 0.1-0.2 cm, longest at mid-shoot, margin entire to weakly denticulate, apex somewhat thickened, subacute; submerged leaves longer than emergent leaves. Flowers purplish. Stamens ca. 1.5 mm. Ovary ca. 1 mm. Achene ovoid-ellipsoid, 1.5-2.5 mm, smooth. Fl. Apr-Sep, fr. May-Oct.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 13: 433 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Distribution

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Europe, Alpine Himalaya, Tibet, Siberia, W. & N. China, N. Japan, N. & S. America, Greenland.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Annotated Checklist of the Flowering Plants of Nepal Vol. 0 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Annotated Checklist of the Flowering Plants of Nepal @ eFloras.org
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K.K. Shrestha, J.R. Press and D.A. Sutton
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Distribution

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Distribution: Most of Europe and Asia, N. Africa, N. America.
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 1 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
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Distribution

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Gansu, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan, Taiwan, Xinjiang, Xizang, Yunnan [temperate regions worldwide].
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 13: 433 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Elevation Range

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3000-4700 m
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Annotated Checklist of the Flowering Plants of Nepal Vol. 0 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Annotated Checklist of the Flowering Plants of Nepal @ eFloras.org
author
K.K. Shrestha, J.R. Press and D.A. Sutton
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eFloras.org
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eFloras

Flower/Fruit

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Fl.Per.: July-August.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 1 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
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eFloras

Habitat

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Stagnant and slow-running waters, lakes, bogs, streams, river shores, paddy fields; near sea level to 5000 m.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 13: 433 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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Synonym

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Hippuris eschscholtzii Lamarck; H. montana Reichenbach; H. spiralis D. Yu; H. vulgaris var. ramificans D. Yu.
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 13: 433 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
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eFloras

Hippuris vulgaris

provided by wikipedia EN

Hippuris vulgaris (from Greek: ἵππος — horse and οὐρά — tail), known as mare's-tail[1] or common mare's-tail, is a common aquatic plant of Eurasia and North America ranging from Greenland to the Tibetan Plateau to Arizona. It prefers non-acidic waters.

Description

The common mare's tail is a creeping, perennial herb, found in shallow waters and mud flats. It roots underwater, but most of its leaves are above the water surface. The leaves occur in whorls of 6-12; those above water are 0.5 to 2.5 cm long and up to 3 mm wide, whereas those under water are thinner and limper, and longer than those above water, especially in deeper streams. The stems are solid and unbranched but often curve, and can be up to 60 cm long. In shallow water they project 20–30 cm out of the water. It grows from stout rhizomes. The flowers are inconspicuous, and not all plants produce them. Studies of H. vulgaris in the Tibetan Plateau have shown that it is a prolific methane emitter.[2] H. vulgaris's roots extend into the anoxic zone of wetland soils and create a conduit for methane produced in the anoxic zone to travel to the atmosphere.

Uses

It can also be a troublesome weed, obstructing the flow of water in rivers and ditches.

References

  1. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  2. ^ Hirota, H., Tang, Y., Hu Q. et al. (2004) Methane emissions from different vegetation zones in a Qinghai-Tibetan Plateau wetland. Soil Biology & Biogeochemistry, 36, 737-748

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Hippuris vulgaris: Brief Summary

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Hippuris vulgaris (from Greek: ἵππος — horse and οὐρά — tail), known as mare's-tail or common mare's-tail, is a common aquatic plant of Eurasia and North America ranging from Greenland to the Tibetan Plateau to Arizona. It prefers non-acidic waters.

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