Isoetes - Wikipedia
Quillworts are mostly aquatic or semi-aquatic in clear ponds and slow-moving streams, though several (e.g. I. butleri, I. histrix and I. nuttallii) grow on wet ground that dries out in the summer. The quillworts are spore-producing plants and highly reliant on water dispersion.
Quillwort | Description, Taxonomy, Species, & Facts | Britannica
Quillwort, family of about 250 species of seedless vascular plants of the order Isoetales. Quillworts are the only extant members of the order and are usually placed in a single genus. The plants are aquatic or semi-aquatic, and most are native to …
Isoetes - Basic Biology
2015年5月31日 · Quillworts are vascular plants within the division Lycophyta. They form a class of plants called Isoetopsida which includes a single family called Isoetaceae. They are closely related to spikemosses and clubmosses. The Isoetes have an ancient evolution dating back to over 400 million years ago.
Isoetes lacustris - Wikipedia
Isoetes lacustris, the lake quillwort or Merlin's grass, is a boreal quillwort native on both sides of the northern Atlantic Ocean. In Europe, it is distributed from Poland west to northeastern France, throughout Scandinavia, the west and north of the British Isles, the Faroe Islands and Iceland.
Isoetes histrix - Wikipedia
Isoetes histrix, the land quillwort, [1] 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. …
Louisiana Quillwort - U.S. Fish & Wildlife Service
Louisiana quillwort is a small, semi-aquatic, facultative evergreen plant with spirally-arranged leaves (sporophylls) arising from a globose, two-lobed corm. The pliant, hollow leaves are transversely septate and measure 2-3 mm (0.12 in.) wide and up to 40 cm (16.0 in.) long.
Louisiana Quillwort / Center For Plant Conservation
1991年7月19日 · The Louisiana quillwort is thought to be one of the rarest quillworts in North America and inhabits cool, clear creeks and roots in sand and gravel a few inches to a few feet under water. It appears to be dependent on small springs to …
Isoetes howellii Engelm. - Calflora
Isoetes howellii Engelm. Isoetes howellii is a lycophyte that is native to California, and also found elsewhere in western North America. Commercial availability unknown. Jepson eFlora.
Isoetes: The Quillworts
2021年11月3日 · From arctic lakes to tropical forests, quillworts (the ~200 species of Isoetes) grow all over the world, though few people have the keen eye to see them.
Isoetes bolanderi Engelm. - Calflora
[Wikipedia] Range, Habitat, Description: soetes bolanderi, or Bolander's quillwort, is a species of quillwort, a type of lycophyte. This aquatic plant is native to high altitude regions of the western United States and southern Alberta.