narrow-fruit watercress

Names and Synonyms

Common Names

• narrow-fruit watercress
• northern watercress
• one-row watercress
• one-row yellowcress
• small-leaved watercress
• Narrow-fruited Water-cress
• Narrow-fruited Watercress

Scientific Names

Accepted name

Synonyms

• Rorippa microphylla
• Rorippa nasturtium-aquaticum subsp. microphylla
• Nasturtium officinale var. microphyllum
• Dictyosperma olgae
• Pirea olgae
• Nasturtium uniseriatum
• Nasturtium officinale f. microphyllum

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and class Equisetopsida. Within the subclass Magnoliidae, it falls under the order Brassicales and the family Brassicaceae. Finally, it is categorized under the genus Nasturtium as the species Nasturtium microphyllum.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific distribution pattern across several regions of Europe. In Northern Europe, its presence is noted in Denmark, Great Britain, and Ireland. It can also be found further north within the borders of Sweden. Moving toward the center of the continent, the species is located in Middle Europe. Specifically, its range extends into the country of Austria.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Nasturtium microphyllum is characterized by its significant adaptability across a broad vertical gradient, occupying diverse environments from lowland regions up to high-altitude zones. This species exhibits a wide elevational range, establishing itself at sea level (0 m AMSL) and extending its presence to mountainous terrains at a maximum elevation of 2500 m AMSL. Its habitat preferences are diverse, encompassing lowland ecosystems which suggest a capacity to thrive in warmer, more humid conditions, while its ability to ascend to higher altitudes indicates a resilience to varying temperature regimes and atmospheric pressures. This broad ecological amplitude allows the plant to persist in a variety of niches across different topographic landscapes.

Elevational range max:

2500 m AMSL

Elevational range min:

0 m AMSL

Habitat :

Lowland

Genetics

The genetics of Nasturtium microphyllum are characterized by a specific chromosomal configuration that serves as a fundamental cytogenetic marker for the species. This plant possesses a diploid chromosome number of 64, a value that defines its genomic complexity and plays a crucial role in its reproductive biology and evolutionary lineage within the Brassicaceae family. This stable chromosomal count provides the genetic blueprint necessary for the expression of its specialized metabolic pathways and morphological adaptations.

Chromosome number :

64

Life history

The life history of Nasturtium microphyllum is characterized by a perennial lifecycle, allowing the plant to persist through multiple growing seasons. It functions as a cryptophyte, utilizing specialized underground structures to survive unfavorable environmental conditions. Specifically, its life form is classified as a helophyte, reflecting its adaptation to habitats that may experience fluctuating water levels or seasonal moisture variations. Furthermore, the plant exhibits deciduousness, shedding its foliage as part of its seasonal cycle.

Deciduousness :

deciduous

Life form :

helophyte

Life form :

cryptophyte

Lifecycle :

perennial

Morphology

The morphology of Nasturtium microphyllum is characterized by its growth form as a non-woody herb and forb. This plant is primarily terrestrial in its habitat and functions as an independent organism, meaning it does not act as a parasite. In terms of its physical structure, it is a self-supporting species rather than a liana or vine, and it does not exhibit epiphytic qualities. The plant's stature is relatively low, with a height that ranges from a minimum of 0.1 m to a maximum of 1 m, maintaining an average plant height of approximately 0.3865 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

1 m

Plant height mean:

0.3865 m

Plant height min:

0.1 m

Woodiness :

non-woody

Physiology

The physiology of Nasturtium microphyllum is characterized by a C3 photosynthetic pathway and a non-carnivorous nutritional strategy. The plant's foliage exhibits significant morphological variability, with leaf lengths ranging from a minimum of 1.5 cm to a maximum of 25 cm. The width of the leaves shows a similarly broad spectrum, varying from a minimum of 0.5 cm to a maximum of 5 cm, resulting in a mean leaf width of 4 cm. On average, the leaves possess a surface area of 22.455 cm², and the plant maintains a high Specific Leaf Area (SLA) with a mean value of 721 cm²/g, indicating relatively thin or high-surface-area foliage optimized for light interception.

Carnivory :

non-carnivorous

Leaf length max:

25 cm

Leaf length min:

1.5 cm

Leaf size mean:

22.455 cm²

Leaf width max:

5 cm

Leaf width mean:

4 cm

Leaf width min:

0.5 cm

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) mean:

721 cm²/g

Reproduction

The reproduction of Nasturtium micropylum is driven by sexual processes, as asexual reproduction is notably absent in this species. The flowering period is relatively long, commencing in May and continuing through October. The plant utilizes a biotic pollination syndrome, specifically relying on insects, with bees identified as a primary pollinator. Self-fertilization is present, ensuring reproductive success within the population. Following successful pollination, the plant develops fruit in the form of a capsule. These capsules vary in size, with lengths ranging from a minimum of 1.6 cm to a maximum of 2.5 cm (averaging 2.5 cm), and an average width of 0.2 cm. The fruit is dehiscent, meaning it opens at maturity to release its seeds. The resulting seeds are quite small, characterized by a mean length of 1.05 mm (ranging from 1 mm to 1.1 mm) and a mean mass of approximately 8.33e-05 g, with a maximum mass of 0.00012 g. Seed dispersal follows an unspecialized syndrome, suggesting that the seeds are distributed through general environmental or biological mechanisms rather than highly specific specialized vectors.

Dehiscence :

dehiscent

Dispersal syndrome :

unspecialized

Flowering time :

May

Flowering time :

Oct

Fruit length max:

2.5 cm

Fruit length min:

1.6 cm

Fruit type :

capsule

Fruit width mean:

0.2 cm

Pollination syndrome :

insect

Pollination syndrome :

bee

Pollination syndrome :

biotic

Reproduction asexual :

absent

Seed length max:

1.1 mm

Seed length mean:

1.05 mm

Seed length min:

1 mm

Seed mass max:

0.00012 g

Seed mass mean:

8.33333333333333e-05 g

Seed mass min:

0 g

Self fertilization :

present

Sources: Global Inventory of Floras and Traits (GIFT)

Activities

Nasturtium microphyllum has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antibacterial.

Antibacterial

1. The West Indian medical journal

Preparations