Eryngium caeruleum

Names and Synonyms

Common Names

• Eryngium caeruleum

Scientific Names

Accepted name

Regional and Traditional Names

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. Following the subclass Magnoliidae, it is classified under the order Apiales and the family Apiaceae. Ultimately, it is identified by its genus, Eryngium.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is primarily distributed across various regions of Northern Europe. It can be found growing in the natural landscapes of Denmark and Finland. Additionally, its presence extends to the islands of Great Britain and Ireland. The species is also documented throughout the territories of Norway. Collectively, these locations define its specific geographical range within the northern part of the continent.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Eryngium planum is characterized by its presence in diverse and often rugged landscapes, including hills, mountains, semidesert, and steppe environments. This species thrives across a broad altitudinal gradient, occupying ecological niches ranging from a minimum elevation of 800 m AMSL to a maximum of 2100 m AMSL. Its ability to inhabit both semi-arid steppes and montane regions suggests an adaptability to varying moisture levels and temperature fluctuations typical of these high-altitude and open-canopy habitats.

Elevational range max:

2100 m AMSL

Elevational range min:

800 m AMSL

Habitat :

hills, mountains, semidesert, steppe

Life history

The life history of Eryngium planum is characterized by its classification as a perennial species, allowing it to persist in its habitat over multiple growing seasons. Throughout its lifecycle, the plant establishes a robust root system that enables it to endure varying environmental conditions and return annually to produce new growth. As a perennial, it avoids the complete die-off seen in annuals, instead focusing energy on vegetative persistence and periodic reproductive cycles. This longevity contributes to its stability within its ecological niche, where it can develop substantial biomass and produce striking, blue-tinted inflorescences year after year.

Lifecycle :

perennial

Morphology

The morphology of Eryngium planum is characterized by its growth form as a non-woody herb, specifically classified as a forb. It is a self-supporting plant that does not exhibit climbing habits, such as being a liana or vine, nor does it function as a climber. The species is strictly terrestrial in its habitat, lacking aquatic or semiaquatic tendencies, and it does not grow as an epiphyte. As an independent organism, it does not exhibit parasitic behavior. In terms of stature, the plant reaches a maximum height of approximately 1 meter.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Plant height max:

1 m

Woodiness :

non-woody

Physiology

The physiology of Eryngium planum is characterized by a robust metabolic framework adapted to temperate environments, primarily driven by a C3 photosynthetic pathway. In this process, the plant utilizes the enzyme RuBisCO to fix atmospheric carbon dioxide directly into three-carbon compounds during the Calvin cycle, a mechanism that is highly efficient under moderate temperatures and sufficient moisture levels. This C3 metabolism supports the plant's structural development, including its characteristic stiff, spiny leaves and deep taproot system, which facilitate efficient nutrient uptake and water transport. The physiological regulation of its transpiration rates is closely linked to its stomatal conductance, allowing the species to manage gas exchange while maintaining turgor pressure within its dense, flowering umbels. Furthermore, its metabolic activity is closely tied to seasonal photoperiodism, which triggers the transition from vegetative growth to the reproductive phase, ensuring successful seed production within its native ecological niche.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Eryngium planum is characterized by a specific flowering phenology and precise seed characteristics. The flowering period typically commences in May and concludes in July, though the exact timing can remain variable depending on environmental conditions. During the reproductive phase, the plant produces seeds that exhibit a highly consistent mass; the mean, maximum, and minimum seed mass are all recorded at 0.00126 g, indicating a very uniform seed size for the species.

Flowering time :

May

Flowering time :

Jul

Seed mass mean:

0.00126 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Eryngium planum has 5 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include CHLOROPHYLL, Fatty acids, Flavonoids, Steroids, Terpenoids.

CHLOROPHYLL

1. Food science & nutrition

Fatty acids

1. Iranian journal of pharmaceutical research : IJPR

Flavonoids

1. Food science & nutrition

Steroids

1. Iranian journal of pharmaceutical research : IJPR

Terpenoids

1. Iranian journal of pharmaceutical research : IJPR

Activities

Eryngium planum has 2 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antifungal.

Antibacterial

1. BMC complementary and alternative medicine

Antifungal

1. BMC complementary and alternative medicine

Conditions

Eryngium planum has 7 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include Acanthamoeba keratitis, Candida albicans, Escherichia coli, Long-Term Memory, Staphylococcus aureus.

Acanthamoeba keratitis

1. Acta poloniae pharmaceutica

Candida albicans

1. International journal of biomaterials

Escherichia coli

1. International journal of biomaterials

Long-term memory

1. Evidence-based complementary and alternative medicine : eCAM

Staphylococcus aureus

1. International journal of biomaterials

Neurodegenerative diseases

1. Pharmacognosy magazine

Skin diseases

1. Molecules (Basel, Switzerland)

Preparations

Eryngium planum has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include chloroform and ethyl acetate fractions.

Chloroform and ethyl acetate fractions

1. BMC complementary and alternative medicine