twoflower violet

Names and Synonyms

Common Names

• alpine yellow violet
• arctic yellow violet
• northern violet
• northern yellow violet
• twinflower violet
• Alpine Yellow-violet
• two-flower violet
• Twoflower Violet
• Yellow Wood Violet

Scientific Names

Accepted name

Synonyms

• Dischidium biflorum

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. It is further classified under the subclass Magnoliidae and the order Malpighiales. Finally, it is a member of the family Violaceae and is situated within the genus Viola.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad distribution across several regions of the European continent. In Northern Europe, it can be found growing within the borders of Finland, Norway, and Sweden. Its range also extends into Middle Europe, where it inhabits the mountainous landscapes of Austria. Furthermore, the species is documented throughout the Czechia-Slovakia region. These diverse locations demonstrate the plant's ability to thrive in various temperate environments.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Viola biflora is characterized by its preference for meadow habitats, where it thrives within specific altitudinal gradients. This species demonstrates a broad elevational distribution, ranging from a minimum altitude of 900 m AMSL to a maximum height of 4200 m AMSL. Across its geographic spread, the plant maintains a mean elevation of approximately 3275 m AMSL, indicating a strong adaptation to high-altitude montane and alpine environments.

Elevational range max:

4200 m AMSL

Elevational range mean:

3275 m AMSL

Elevational range min:

900 m AMSL

Habitat :

meadows

Life history

The life history of Viola biflora is characterized by a perennial lifecycle, allowing the plant to persist across multiple growing seasons. As a hemicryptophyte, it maintains its perennuating buds at or just below the soil surface, protected by leaf litter or organic matter during unfavorable conditions. This life form ensures its survival through seasonal shifts, complemented by its evergreen deciduousness, which enables the plant to maintain foliage and physiological activity throughout much of its habitat's cycle.

Deciduousness :

evergreen

Life form :

hemicryptophyte

Lifecycle :

perennial

Morphology

The morphology of Viola biflora is characterized by its growth form as a non-woody herb, specifically classified as a forb. This species is a self-supporting plant that does not exhibit climbing behavior and functions as an independent organism, neither acting as a parasite nor an epiphyte, maintaining a terrestrial lifestyle. In terms of stature, it is a relatively diminutive plant with a height ranging from a minimum of 0.02 m to a maximum of 0.2 m, maintaining an average plant height of approximately 0.115 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

0.2 m

Plant height mean:

0.115 m

Plant height min:

0.02 m

Woodiness :

non-woody

Physiology

The physiology of Viola biflora is characterized by a C3 photosynthetic pathway, a common metabolic strategy for plants in temperate environments. Its foliage is morphologically defined by a cordate leaf form with entire margins and a complete absence of defensive structures such as thorns or spines. The leaves exhibit significant dimensional variation, with a minimum leaf length of 1 cm and a maximum of 3 cm, alongside a mean leaf length of 1.625 cm. In terms of width, the leaves range from a minimum of 1 cm to a maximum of 4.5 cm, contributing to a mean leaf size of approximately 1.4025 cm². Furthermore, the plant demonstrates a mean Specific Leaf Area (SLA) of 521.25 cm²/g, indicating a relatively thin and expansive leaf structure optimized for efficient light interception within its ecological niche.

Leaf form :

cordate

Leaf length max:

3 cm

Leaf length mean:

1.625 cm

Leaf length min:

1 cm

Leaf margin :

entire

Leaf size mean:

1.4025 cm²

Leaf spines :

no

Leaf thorns :

no

Leaf width max:

4.5 cm

Leaf width min:

1 cm

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) mean:

521.25 cm²/g

Reproduction

The reproduction of Viola biflora is characterized by a specific flowering phenology and diverse biological mechanisms for pollination and seed dispersal. The flowering period typically begins in May and continues through August. The plant utilizes a biotic pollination syndrome, specifically relying on insects to facilitate the transfer of pollen. While it is capable of cross-pollination, self-fertilization is also present, ensuring reproductive success. Following fertilization, the plant produces fruits that vary in size, with a minimum length of 0.4 cm, a mean length of 0.55 cm, and a maximum length of 0.7 cm. The resulting seeds are quite small, possessing a mean mass of approximately 0.00074 g. Dispersal is achieved through a zoochorous syndrome, specifically via endozoochory, where seeds are dispersed after being ingested by animals, contributing to the plant's ability to colonize new areas.

Dispersal syndrome :

zoochorous

Dispersal syndrome :

endozoochorous

Flowering time :

May

Flowering time :

Aug

Fruit length max:

0.7 cm

Fruit length mean:

0.55 cm

Fruit length min:

0.4 cm

Pollination syndrome :

insect

Pollination syndrome :

biotic

Seed mass mean:

0.00074 g

Self fertilization :

present

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Viola biflora has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Protein disulfide-isomerase, THIOREDOXIN.

Protein disulfide-isomerase

1. Phytochemistry

THIOREDOXIN

1. Phytochemistry

Activities

Viola biflora has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antimicrobial.

Antimicrobial

1. Phytochemistry