felwort

Names and Synonyms

Common Names

• alpine bog swertia
• mountain bog swertia
• star gentian
• star green gentian
• star swertia
• felwort
• swertia
• marsh felwort

Scientific Names

Accepted name

Synonyms

• Blepharaden perennis

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Gentianales, it is classified under the family Gentianaceae. Finally, it is categorized under the genus Swertia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is widely distributed across several regions within Middle Europe. It can be found growing in the natural landscapes of Austria. Its presence is also documented throughout the territories of Czechia and Slovakia. Furthermore, the species is native to parts of Germany and Poland. Finally, the geographical range of this medicinal plant extends into Switzerland.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Swertia perennis is characterized by its preference for highly specific, moisture-rich environments. This species is primarily found inhabiting meadows that are consistently wet, often extending into swampy terrains and marshy landscapes. These habitats provide the saturated soil conditions and high water availability necessary for its growth, situating the plant within ecosystems defined by periodic flooding or high water tables. Such niches support its specialized life cycle, linking its distribution closely to the presence of perennial wetlands and damp meadowlands.

Habitat :

meadows: wet, swamps

Genetics

The genetics of Swertia perennis are characterized by a stable genomic structure consistent with its evolutionary lineage within the Gentianaceae family. Cytogenetic analysis reveals that the species possesses a diploid chromosomal configuration, indicated by a ploidy level of 2. This diploidy suggests a standard inheritance pattern and a balanced genome, which provides the necessary genetic stability for the expression of its complex secondary metabolites. The maintenance of this specific ploidy level plays a critical role in the plant's reproductive success and its ability to adapt to diverse ecological niches through regulated gene expression and chromosomal pairing during meiosis.

Ploidy :

2

Life history

The life history of Swertia perennis is characterized by its status as a perennial plant, allowing it to persist through multiple growing seasons. It functions as a hemicryptophyte, a life form where the perennating buds are located at the soil surface, protected by leaf litter or soil. Throughout its existence, the species maintains an evergreen nature, retaining its foliage to support continuous physiological processes.

Deciduousness :

evergreen

Life form :

hemicryptophyte

Lifecycle :

perennial

Morphology

The morphology of Swertia perennis is characterized by its growth form as a non-woody herb, specifically classified as a forb. This plant is a self-supporting species that does not function as a climber, liana, or vine, and it maintains an independent lifestyle rather than acting as a parasite or an epiphyte. As a terrestrial organism, it grows in soil rather than in aquatic or semiaquatic environments. In terms of stature, the plant is relatively small, with a height that typically ranges from a minimum of 0.08 m to a maximum of 0.6 m, maintaining an average plant height of approximately 0.26 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

0.6 m

Plant height mean:

0.26 m

Plant height min:

0.08 m

Woodiness :

non-woody

Physiology

The physiology of Swertia perennis is characterized by a metabolic framework utilizing the C3 photosynthetic pathway, which involves the direct fixation of atmospheric carbon dioxide through the enzyme Rubisco within the mesophyll cells. This C3 mechanism dictates its physiological reliance on specific environmental conditions, particularly moisture availability and moderate temperatures, to optimize gas exchange and minimize photorespiration. The plant's energy acquisition is driven by this carbon fixation process, which supports the complex biosynthetic pathways necessary for producing its characteristic secondary metabolites, such as secoiridoid glycosides. These metabolic processes are integrated with its overall physiological functions, including water regulation and nutrient uptake, to maintain cellular homeostasis and facilitate growth throughout its life cycle.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Swertia perennis is characterized by a specific phenological cycle and specialized pollination and dispersal mechanisms. The flowering period typically occurs during the warmer months, starting in July and concluding in September. The plant relies on biotic pollination syndromes, specifically utilizing insects as the primary pollinators to facilitate fertilization, as self-fertilization is noted to be absent. Following successful pollination, the plant produces seeds with a very small mass, ranging from a minimum of 0.00024 g to a maximum of 0.00052 g, with a mean seed mass of approximately 0.0003705 g. The dispersal of these seeds is achieved through an autochorous syndrome, where the plant employs self-dispersal mechanisms to spread its offspring.

Dispersal syndrome :

autochorous

Flowering time :

Jul

Flowering time :

Sep

Pollination syndrome :

insect

Pollination syndrome :

biotic

Seed mass max:

0.00052 g

Seed mass mean:

0.0003705 g

Seed mass min:

0.00024 g

Self fertilization :

absent

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Swertia perennis has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids, Iridoids.

Flavonoids

1. Natural product research

Iridoids

1. Natural product research

Activities

Swertia perennis has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antioxidant.

Antioxidant

1. Natural product research