Andreaea rothii
species of plant

Andreaea rothii, or Roth's andreaea moss, is a species of moss in the family Andreaeaceae native to North America and parts of Europe. This plant was described in 1807 by Weber and Mohr.
Description
Andreaea rothii gametophytes sometimes form extensive black to brown cushion-like patches, with individual shoots erect and less than 2 cm tall. The leaves of Andreaea rothii are 1-2 cm wide, and have a strong costa, which is roughly synonymous to a midrib. The leaves can be falcate-secund, curving to one side of the plant. This is especially true when wet, however the plants do not alter much when dry. The outline of the leaf is pear-shaped, swelling at the base and tapering to a tip, and can also be strongly curved depending on subspecies.
Distribution
Andreaea rothii grows on rocks that are wet, acidic, and exposed. This species is found anywhere from areas of high elevation to sea-level.
Reproduction
Andreae rothii gametophytes can be gonioautoicous—meaning the antheridia are bud-like in the axil of an archegonial branch—or cladautoicous—meaning the antheridia and archegonia are found on different branches of the same plant.
“Andreaea rothii” enters the record as species of plant. Crown Archives preserves that source wording while asking what Andreaea, rothii and species can confirm, complicate or overturn.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Jun 28, 2025. The linked authority identifier is Q17199908. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1807.
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This entry incorporates text from “Andreaea rothii” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.