Garden Leek

Names and Synonyms

Common Names

• Garden Leek
• Leek

Scientific Names

Accepted name

Synonyms

• Porrum commune
• Allium porrum var. latum
• Porrum sativum
• Allium porrum var. breve
• Allium ampeloprasum subsp. porrum
• Allium ampeloprasum var. porrum
• Allium porrum var. viviparum

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant, Allium porrum, belongs to the kingdom Plantae and the phylum Streptophyta. It is classified under the class Equisetopsida and the subclass Magnoliidae within the order Asparagales. Finally, it is a member of the Amaryllidaceae family and falls under the genus Allium.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad distribution across several key regions of the European continent. In Northern Europe, its presence is well-documented in both Great Britain and Ireland. Moving toward the center of the continent, it can be found growing throughout Germany in Middle Europe. Its range extends further south into Southwestern Europe, where it is commonly located in France. Finally, the distribution continues into the Mediterranean climate of Spain within the same southwestern region.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Allium porrum is characterized by a versatile growth pattern that can be classified as annual, biennial, perennial, or variable depending on the environmental conditions and cultivation practices. While typically managed as an annual crop for culinary and medicinal harvesting, the plant possesses the biological capacity to complete its life cycle over multiple years. In its biennial phase, the plant focuses on vegetative development during the first year, building energy reserves within its bulbous base, before transitioning to reproductive flowering in the second year. Under certain stable conditions, it can also exhibit a perennial nature, persisting through successive growing seasons. This lifecycle flexibility allows the species to adapt to varying climatic stressors, transitioning from rapid vegetative biomass production to the eventual development of inflorescences to ensure seed dispersal and species continuity.

Lifecycle :

perennial

Morphology

The morphology of Allium porrum is characterized by a herbaceous growth form, manifesting as a non-woody, self-supporting plant. It is a terrestrial species that functions as an independent organism, neither acting as a parasite nor an epiphyte. The plant typically reaches an average height of approximately 0.325 m, maintaining a structural habit consistent with a typical herb.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Plant height mean:

0.325 m

Woodiness :

non-woody

Physiology

The physiology of Allium porrum is characterized by a C3 photosynthetic pathway, meaning it utilizes the Calvin cycle to fix carbon dioxide through the enzyme RuBisCO during the light-independent reactions. As a C3 plant, its carbon fixation occurs primarily within the mesophyll cells, where atmospheric $CO_2$ is directly incorporated into a three-carbon molecule. This metabolic process is highly efficient under temperate conditions and moderate light intensities, though it necessitates careful regulation of stomatal conductance to balance $CO_2$ uptake with transpiration rates to prevent water loss. The plant's physiological vigor is further supported by a robust nutrient uptake system capable of absorbing nitrogen, sulfur, and essential minerals from the soil to facilitate the synthesis of sulfur-containing compounds and various metabolic enzymes. Furthermore, its metabolic activity is closely tied to its seasonal growth patterns, where temperature and photoperiod influence the rate of carbohydrate translocation from the photosynthetic leaf tissues to the developing bulbous base.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Allium porrum is characterized by specific morphological and ecological strategies centered on seed production and distribution. The seeds produced by this species are notably small, with a recorded mean seed mass of approximately 0.003 g. In terms of seed dispersal, the plant utilizes multiple syndromes to ensure its progeny reach suitable habitats. It exhibits an autochorous dispersal syndrome, where seeds are released through internal mechanisms, but this is complemented by a broader range of dispersal methods. These include anemochorous (wind), zoochorous (animal), hydrochorous (water), and unspecialized modes, as well as anthropochorous (human-mediated) movement. This multifaceted approach to dispersal ensures that the species can colonize diverse environments through both natural and incidental vectors.

Dispersal syndrome :

autochorous

Seed mass mean:

0.003 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Allium porrum has 3 reported plant parts identified across 3 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf, seed, stem.

Leaf

1. Saudi medical journal

Seed

1. World journal of gastroenterology

Stem

1. Foods (Basel, Switzerland)

Chemicals

Allium porrum has 14 reported phytochemicals identified across 3 scientific publications and several other databases. The most consistently reported chemicals include vitamin C, Condensed Tannins, Flavonoid, Flavonoids, H2O.

vitamin C

1. Vavilovskii zhurnal genetiki i selektsii
2. Pakistan journal of pharmaceutical sciences

Condensed Tannins

1. Foods (Basel, Switzerland)

Flavonoid

1. Journal of pharmacopuncture

Flavonoids

1. Foods (Basel, Switzerland)

H2O

1. The new microbiologica

KAEMPFEROL 3-beta-D-GLUCOSIDE

1. Zeitschrift fur Lebensmittel-Untersuchung und -Forschung

Proanthocyanidins

1. Foods (Basel, Switzerland)

Quercetin 3-glucoside

1. Zeitschrift fur Lebensmittel-Untersuchung und -Forschung

ascorbate

1. Vavilovskii zhurnal genetiki i selektsii

glucose

1. Zeitschrift fur Lebensmittel-Untersuchung und -Forschung

Activities

Allium porrum has 3 reported activities identified across 3 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antioxidant, Antidiabetic.

Antibacterial

1. Acta scientiarum polonorum. Technologia alimentaria
2. Journal of pharmacopuncture

Antioxidant

1. Journal of ethnopharmacology
2. Vavilovskii zhurnal genetiki i selektsii

Antidiabetic

1. Journal of ethnopharmacology

Medicinal Uses

Allium porrum has 6 reported medicinal uses identified across 3 scientific publications and several other databases. The most consistently reported uses include antibiotic resistance, cancers, diuretic, hospital infections, iron overload.

Most Reported Uses

Preparations