Narrow Quillwort

Names and Synonyms

Common Names

• Narrow Quillwort

Scientific Names

Accepted name

Sources: Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Lycopodiidae, it is organized into the order Isoetales and the family Isoetaceae. Ultimately, its taxonomic identity is defined by its placement in the genus Isoetes.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical distribution across parts of Eastern Asia. Within China, its presence is primarily concentrated in the Southeast region. Beyond the Chinese mainland, the species can also be found in Japan. Additionally, it is naturally distributed throughout the Korean Peninsula. Collectively, these areas define the known range of this medicinal plant.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Morphology

The morphology of Isoetes sinensis is characterized by a distinctive aquatic growth habit, consisting of a compact rosette of leaves that emerge from a central, somewhat elongated rhizome. The plant is fundamentally non-woody, lacking any lignified tissues or secondary thickening, which allows it to remain flexible within its submerged or semi-submerged habitats. The leaves, often referred to as microphylls, are linear, elongated, and somewhat fleshy, typically arranged in a dense spiral around the base. These leaves are equipped with fine, longitudinal lines known as striations that run from the base toward the apex, often containing small, dark spots or lacunae. The root system is composed of several slender, filiform roots that emerge from the base of the rosette to anchor the plant in the substrate. Reproduction occurs through the production of heterosporous sporangia, which are located in the axils of the leaves, typically appearing as small, dark, or brownish structures during the sporophytic phase.

Woodiness :

non-woody

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Isoetes sinensis has 8 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Apigenin 7-glucuronide, Dihydrochalcone, Isoetin, Kaempferol 3-O-glucoside, Nothofagin.

Apigenin 7-glucuronide

1. PloS one

Dihydrochalcone

1. PloS one

Isoetin

1. PloS one

Kaempferol 3-O-glucoside

1. PloS one

Nothofagin

1. PloS one

Procyanidins

1. PloS one

Prodelphinidin

1. PloS one

apigenin

1. PloS one