grass-like vetch

Names and Synonyms

Common Names

• grass-like vetch

Scientific Names

Accepted name

Synonyms

• Ervum gramineum

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 Fabales, it is classified under the family Fabaceae and is identified by the genus Vicia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is widely distributed across several key regions in South America. In Western South America, its presence is noted in the nations of Bolivia, Colombia, and Peru. Moving eastward, it can also be found throughout Southern Brazil. Additionally, the species extends into the northeastern parts of Argentina. Together, these locations highlight a broad geographical range across the continent.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Vicia graminea is characterized by its broad adaptability to diverse altitudinal gradients, spanning an extensive range from sea level (0 m AMSL) up to high-altitude environments reaching 3900 m AMSL. This species thrives in specific ecological niches, primarily occupying habitats such as Campo de Altitude, Campo Limpo, and vegetation situated over rocky outcrops (Vegetação Sobre Afloramentos Rochosos). Its ability to colonize both open grasslands and rugged, rocky terrains across such a vast elevational spectrum reflects a high degree of environmental plasticity.

Elevational range max:

3900 m AMSL

Elevational range min:

0 m AMSL

Habitat :

Campo de Altitude, Campo Limpo, Vegetação Sobre Afloramentos Rochosos

Life history

The life history of Vicia graminea is characterized by a variable lifecycle, as it can function as an annual, biennial, or perennial depending on environmental conditions and habitat stability. As a legume, its life cycle begins with seed germination, often triggered by moisture and temperature fluctuations in the soil. During its growth phase, the plant develops a climbing or trailing habit, utilizing tendrils to anchor itself to surrounding vegetation for support. The transition through its various life stages involves a period of vegetative development followed by a reproductive phase, during which it produces inflorescences that bear characteristic flowers and subsequently seeds. Depending on whether it follows an annual or perennial trajectory, the plant may complete its entire reproductive process within a single growing season or persist through multiple years, establishing a more permanent presence in its ecological niche through rhizomes or persistent seed banks.

Lifecycle :

annual

Morphology

The morphology of Vicia graminea is characterized by its growth form as a non-woody herb, specifically functioning as a graminoid or forb. It is a self-supporting plant that does not exhibit climbing behavior, as it lacks both obligatory and facultative climbing mechanisms. As a terrestrial species, it occupies land-based habitats rather than aquatic or semiaquatic environments, and it does not function as an epiphyte, maintaining a strictly terrestrial existence. Furthermore, the plant is an independent organism, showing no parasitic tendencies toward other vegetation.

Aquatic :

terrestrial

Climber :

self-supporting

Climber :

obligatory

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Woodiness :

non-woody

Physiology

The physiology of Vicia graminea is characterized by a fundamental reliance on the C3 photosynthetic pathway, a metabolic process where carbon dioxide is fixed directly into a three-carbon compound during the initial stage of the Calvin cycle. This pathway dictates the plant's gas exchange dynamics and water-use efficiency, as it lacks the specialized carbon-concentrating mechanisms found in C4 or CAM species, making its metabolic rate highly sensitive to temperature fluctuations and stomatal conductance. Under optimal environmental conditions, the plant utilizes its C3 metabolism to drive biomass production through the enzymatic activity of RuBisCO; however, this efficiency can be influenced by photorespiration when carboxylase activity is outcompeted by oxygenation during periods of high heat or water stress. The physiological framework of the plant is thus optimized for temperate environments where the energy costs of the C3 cycle are balanced by moderate light intensities and sufficient moisture availability.

Photosynthetic pathway :

C3

Reproduction

Reproduction in Vicia graminea is primarily driven by the production of seeds contained within legume-style pods, which follow a highly consistent morphological pattern regarding their weight. The reproductive output of this species is characterized by a very uniform seed mass, with the mean, maximum, and minimum values all aligning at exactly 0.0105 g. This lack of variance in seed mass suggests a highly stabilized reproductive strategy, ensuring that each seed produced carries a standardized amount of nutrient reserves to support early seedling development. Through this consistent seed production, the plant facilitates its dispersal and colonization within its natural habitat.

Seed mass mean:

0.0105 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Vicia graminea has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Lectin.

Lectin

1. Hoppe-Seyler's Zeitschrift fur physiologische Chemie
2. The Biochemical journal

Preparations

Vicia graminea has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include extracts.

Extracts

1. Vox sanguinis