Isoetes, commonly known as the quillworts, is a genus of lycopod. It is the only living genus in the family Isoetaceae and order Isoetales. As of 2016, there were about 200 recognized species, [1] with a cosmopolitan distribution mostly in aquatic habitats but …

水韭屬 （学名： Isoëtes）是 石松門 的 水韭目 中現存的唯一屬，為多年生 挺水植物 或 沉水植物，植株較矮小（通常高5至15公分）， 葉子 通常叢生，繁殖體（孢子）密生於葉基內側。 水韭一般生長在湖沼 溼地。 全世界現存水韭約有 200 餘種。 [1] 根據化石證據，水韭屬的 演化 起源可上溯至 泥盆紀 末期，被認為是 封印木屬 、 鱗木屬 等大型喬木狀已滅絕 石松 植物類群的現存近親，但現生水韭屬相比之下植株矮小得多，且多為水生。

中华水韭（Isoetes sinensis Palmer）是水韭科水韭属多年生沼地生蕨类。 植株高15-30厘米；根茎肉质块状，向上丛生多数向轴覆瓦状排列的叶；孢子囊椭圆形，具白色膜质盖，大孢子囊常生于外围叶片基的向轴面，小孢子囊生于内部叶片基部的向轴面；孢子期5月下旬 ...

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. Once touted as one of the most understudied plant groups, quillworts have received lots of new attention, and there is now ongoing research to understand the evolution, genomics, and ...

Isoetes is commonly called ‘Quill wort’ due to the quill (a large feather)-like structure of the leaves. The plant body consists of a condensed, lobed corm or axis that bears a tuft of roots at the base and long feathery leaves on the top.

2022年3月16日 · Merlin’s grass (Isoetes, Isoetaceae, Lycopsida), is the extant remnant of the isoetalean wood-producing lycopsids that originated during the Paleozoic, possibly in aquatic or boggy habitats. Modern day species are aquatic, semi-aquatic or …

2023年10月1日 · 中华水韭（Isoetes sinensis）被认为是植物界的大熊猫，是我国首批公布的I级重点保护野生植物名，同时也是中国特有 石松类植物 。 在所有维管植物类群中，石松类植物的进化史最长，对地球的生物多样性、土壤形成和 二氧化碳固定 有着重要的影响。

2024年8月17日 · Isoëtes are iconic but understudied wetland plants, despite having suffered severe losses globally mainly because of alterations in their habitats. We therefore provide the first global ecological assessment of aquatic Isoëtes to identify their environmental requirements and to evaluate if taxonomically related species differ in their ecology.

2015年5月31日 · Isoetes is a genus of plants that almost make up the entire group of plants called quillworts. They are one of the most primitive groups of vascular plants that currently exist on Earth. They form a unique class of lycophytes with roughly 150 species still living today, although many species are now endangered.

2016年9月27日 · Isoetes is a widely distributed lycophyte genus of at least 200 species occurring in diverse habitats. The species can be difficult to identify because Isoetes, with its apparent simplicity of form and conserved morphology, provides few diagnostic features to reliably distinguish its species.