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Isoëtes histrix
Also called Land Quillwort
Isoetes histrix, the land quillwort, is an aquatic pteridophyte native to the Mediterranean region, northwestern Africa, and the coasts of western Europe northwest to Cornwall. It occurs mainly in temporarily wet habitats, otherwise called vernal pools.
The leaves are 3–8 cm long, and summer-deciduous. It differs from Isoetes durieui by its large black scales between the leaves, though these are not always present, and a surface of megaspores with tubercles, whereas I. durieui has a network of ridges.
Isoetes acadiensis · Isoetes alpina · Appalachian Quillwort · Isoetes araucaniana · Isoetes australis · Isoetes bolanderi · Isoetes brevicula · Isoetes butleri · Isoetes capensis · Isoetes caroliniana · Isoetes × eatonii · Isoetes echinospora
Text excerpted from the Wikipedia article Isoetes histrix by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
