Torilis arvensis

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a specific distribution pattern across various regions of the European continent. In Northern Europe, its presence can be identified within the borders of Great Britain. Moving into Middle Europe, it is found inhabiting the landscapes of Austria and Belgium. The species also extends its range through the territories of Czechia and Slovakia. Finally, its geographical footprint includes the country of Germany.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Torilis arvensis is characterized by a broad altitudinal distribution, spanning from sea level up to a maximum elevation of 1340 m AMSL, with a mean elevational range centered around 1600 m AMSL. This species is typically found colonizing diverse environments, specifically favoring mountainous terrains and shrubberies where it can integrate into the existing vegetation layers. In terms of biological survival strategies, the plant possesses active defense mechanisms to protect itself from herbivory or environmental stressors.

Defense :

yes

Elevational range max:

1340 m AMSL

Elevational range mean:

1600 m AMSL

Elevational range min:

0 m AMSL

Habitat :

mountains, shrubberies

Life history

The life history of Torilis arvensis is characterized by an annual lifecycle, meaning the plant completes its entire developmental process from germination to seed production within a single growing season. As a therophyte, it survives the unfavorable seasons primarily in the form of seeds, which remain dormant until environmental conditions are suitable for regrowth. This species exhibits a deciduous nature, shedding its vegetative structures as it completes its seasonal cycle. Structurally, its classification as a therophyte defines its growth strategy, relying on rapid development to reach maturity and ensure reproductive success before the onset of senescence.

Deciduousness :

deciduous

Life form :

therophyte

Lifecycle :

annual

Morphology

The morphology of Torilis arvensis is characterized by its growth form as a non-woody herb and specifically a forb. This terrestrial, independent plant grows in an erect shoot orientation and is entirely self-supporting rather than acting as a climber, liana, or vine. In terms of stature, the plant typically reaches a mean height of 0.475 m, with individual specimens ranging from a minimum of 0.3 m to a maximum height of 1 m. The shoot length can extend up to a maximum of 200 cm, contributing to its overall structural presence in its habitat.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

1 m

Plant height mean:

0.475 m

Plant height min:

0.3 m

Shoot length max:

200 cm

Shoot orientation :

erect

Woodiness :

non-woody

Physiology

The physiology of Torilis arvensis is characterized by a C3 photosynthetic pathway, which dictates its carbon fixation processes and metabolic efficiency in varying light environments. The plant exhibits a non-carnivorous nutritional strategy and does not function as a nitrogen fixer, relying instead on soil-available nutrients for its development. Morphologically, its foliage is defined by a pinnate leaf form, with leaves reaching a maximum length of 3 cm and maintaining a mean surface area of approximately 9.845 cm². Furthermore, the plant possesses a mean Specific Leaf Area (SLA) of 280.8 cm²/g, a metric that reflects its leaf thickness and resource allocation strategy regarding light interception and water-use efficiency.

Carnivory :

non-carnivorous

Leaf form :

pinnate

Leaf length max:

3 cm

Leaf size mean:

9.845 cm²

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) mean:

280.8 cm²/g

Reproduction

The reproduction of Torilis arvensis is driven by sexual processes through bisexual flowers arranged in an umbel inflorescence. These white flowers are relatively small, with lengths ranging from 0.08 cm to 0.2 cm, and the flowering period typically spans from July to August. The plant relies on biotic pollination, specifically an insect-driven pollination syndrome, as self-fertilization is noted to be absent. Following successful pollination, the plant produces dry fruits that have a mean length of 0.4 cm. The resulting seeds are quite numerous, with a yield of between 101 and 1000 seeds per fruit. These seeds are characterized by a mean length of 3 mm (ranging from 3 mm to 3 mm) and a mean volume of 1.8 mm³. The seed mass is minimal, averaging 0.0016576 g, with a range between 0.00031 g and 0.00242 g. Dispersal is achieved through a zoochorous mechanism, specifically via epizoochory, where seeds are transported by animals. Asexual reproduction is absent in this species.

Dispersal syndrome :

zoochorous

Dispersal syndrome :

epizoochorous

Flower colour :

white

Flower length max:

0.2 cm

Flower length min:

0.08 cm

Flowering time :

Jul

Flowering time :

Aug

Fruit dryness :

dry

Fruit length mean:

0.4 cm

Inflorescence :

umbel

Pollination syndrome :

insect

Pollination syndrome :

biotic

Reproduction asexual :

absent

Reproduction sexual :

bisexual

Seed length mean:

3 mm

Seed mass max:

0.00242 g

Seed mass mean:

0.0016576 g

Seed mass min:

0.00031 g

Seed volume max:

1.8 mm³

Seeds_per_fruit :

101-1000

Self fertilization :

absent

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Torilis arvensis has 2 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf, seed.

Leaf

1. Journal of plant research

Seed

1. Journal of plant research