Home / Anomalous_Items / Aquatic_Macrophytes / Emergent_Leaves / Hippuris |
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Name derivation: |
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Common name ‘mare’s tail’ |
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Classification: |
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Flowers, inconspicuous without sepals and petals, are sessile, located singly in axils of whorled leaves. Rhizomatous, with roots that transmit methane to leaves and then atmosphere from anoxic organic sediments. Fruits are achenes 2 mm long. High-altitude H. montana is smaller (10 cm tall) with shorter leaves than H. vulgaris. In spaceflight tests with microgravity Hippurus had reduced PAL (phenylalanine ammonia-lyase) activity by 28 – 37% (Nedukha 1997). |
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Similar genera: |
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Habitat: |
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Seeds and leaves eaten by wildlife. |
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References: |
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Nedukha, E.M. 1997. Effects of microgravity on the structure and function of plant cell walls. International Review of Cytology 170:39-77. Rutishauser, R. 1999. Polymerous leaf whorls in vascular plants: Developmental morphology and fuzziness of organ identities. International Journal of Plant Sciences 160(S6):S81-S103.
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