Isoetes - Wikipedia 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 with the individual species often scarce to rare
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 swampy, cooler parts of North America and Eurasia
Isoetes - Basic Biology 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
Identification of Isoetes Identification of quillworts is notoriously difficult -- the few distinguishing characteristics are mostly invisible to the naked eye Here are the recommended steps for successful collection and identification of your specimens
Family: Isoetaceae — quillwort family - Go Botany Quillworts are perennial herbs that grow underwater or in very wet conditions The leaves are slender, elongate, and 4-46 cm long They are spirally arranged and grow from a fleshy, flattened, 2-3 lobed corm roughly 1 cm wide The blades have four hollow, longitudinal tubes inside
Plant Diversity - Quillworts - Google Sites The quillworts are a group of grass-like lycophytes in the genus Isoëtes that have a deep ancestry Modern forms are small with linear leaves living in nutrient-poor lakes and ponds In
Quillworts: Nuttall’s Quillwort (Isoetes nuttallii . . . Quillworts are tiny, sedge – or grass-like denizens of aquatic or marshy locales Other than morphology and common names, these two unrelated species have little in common While both are vascular plants, they differ dramatically in that Isoetes reproduces by spores, while Lilaea is an angiosperm, producing true flowers and seeds