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Isoetes lacustris L.

Quillwort

Isoetaceae

Taxonomy

Classification

Group: Lycopodiophytina (Lycophytes)
Family: Isoetaceae (Quillwort family)
Genus: Isoetes (Quillwort)

Synonyms

Isoetes lacustris
Isoetes brochonii

Related species

Isoetes lacustris L. - Quillwort
Isoetes echinospora Durieu - Spring Quillwort

Traits


    <b>Maximal 40&#8239;cm tall</b>. <span class="v1">sporophylls:</span> rush-like. <span class="v1">sporangia:</span> solitary, on the upper surface near the base of the sporophylls. <span class="v1">spores:</span> heterosporous, <b>megaspores mostly with stripes or tu...

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Distribution

Distribution in Europe


Isoetes lacustris

Legend

The colours represent the floristic status of the species in the respective region. Green indicates native occurrences, light green naturalized occurrences. Adventive occurrences are represented by light yellow shades and plants that are cultivated (but rarely occur in the wild) are dark yellow. Grey colours are used, if the floristic status of species is unknown or uncertain.


Distribution in Germany

Isoetes lacustris

Legend

Natural, established occurences
Artificial occurences

The color intensity reflects the species' abundance

Data: Floristische Kartierung Deutschlands (Stand 2013), Bundesamt für Naturschutz (www.floraweb.de)

Ecology

Isoetes lacustris

Isoetes lacustris

Status

  • native

Habitat

  • waters, riparian vegetation, mudflat vegetation, reedbeds

  • in nutrient-poor, wet habitats

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