Marrubium peregrinum

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Atirbesia bracteata
• Marrubium setaceum
• Marrubium flexuosum
• Marrubium pauciflorum
• Marrubium civice
• Marrubium angustifolium
• Marrubium peregrinum var. creticum
• Marrubium candidissimum var. subrotundum
• Marrubium creticum
• Marrubium odoratissimum
• Marrubium remotum
• Marrubium pannonicum
• Marrubium praecox
• Marrubium rubrum
• Marrubium uncinatum

Regional and Traditional Names

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 Lamiales and family Lamiaceae, it is specifically classified under the genus Marrubium. As a member of the Marrubium peregrinum species, it occupies a distinct position within this botanical hierarchy.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical distribution across several regions of the European continent. Within Middle Europe, it can be found growing in the countries of Austria and Germany. Its presence extends further through the central territories of Czechia and Slovakia. Additionally, the species is documented within the borders of Hungary. Finally, its range reaches into Southeastern Europe, specifically within Albania.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Marrubium peregrinum is characterized by its ability to thrive in open, disturbed, and sun-exposed environments. This species is typically found colonizing anthropogenically influenced landscapes, such as crop fields and old fields, where periodic soil disturbance provides the necessary conditions for seedling establishment. Furthermore, it is well-adapted to steppe ecosystems, where it can withstand the competitive pressures and environmental fluctuations typical of semi-arid, open-canopy habitats.

Habitat :

crop fields, old fields, steppe

Life history

The life history of Marrubium peregrinum is characterized by its classification as a perennial plant, allowing it to persist through multiple growing seasons. Its structural development follows a hemicryptophyte life form, a strategy where the perennating buds are located at the soil surface and are protected by leaf litter or other debris during unfavorable periods. This specific life form is consistent across its morphological categorization, as it functions as a hemicryptophyte, ensuring its survival and ability to regenerate from the base after seasonal dormancy.

Life form :

hemicryptophyte

Lifecycle :

perennial

Morphology

The morphology of Marrubium peregrinum is characterized by its growth form as a non-woody herb and forb. This self-supporting plant is terrestrial in nature, functioning as an independent organism rather than an epiphyte or parasite. In terms of stature, it is a relatively low-growing species, with a plant height that typically ranges from a minimum of 0.3 m to a maximum of 0.8 m, maintaining an average height of approximately 0.45 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

0.8 m

Plant height mean:

0.45 m

Plant height min:

0.3 m

Woodiness :

non-woody

Physiology

The physiology of Marrubium peregrinum is characterized by a specialized metabolic framework optimized for temperate to Mediterranean environments, most notably through its utilization of the C3 photosynthetic pathway. In this C3 pathway, carbon fixation occurs directly via the enzyme Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) within the mesophyll cells, leading to the initial formation of a three-carbon compound, 3-phosphoglycerate. This metabolic strategy dictates the plant's water-use efficiency and gas exchange patterns, as it relies on maintaining relatively high stomatal conductance to facilitate CO2 uptake, which in turn influences its transpiration rates. Furthermore, the physiological vigor of the plant is supported by its secondary metabolite biosynthesis, where the C3 carbon skeletons serve as the foundational precursors for the production of bioactive terpenoids and phenolic compounds. These physiological processes, including nutrient uptake and cellular respiration, work in tandem with its C3 carbon assimilation to drive biomass accumulation and the maintenance of its distinctive morphological structures.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Marrubium peregrinum is characterized by a specific phenological cycle and specialized biological mechanisms. The flowering period typically commences in July and concludes in August, though the timing can remain variable. During this stage, the plant utilizes a biotic pollination syndrome, specifically relying on insects to facilitate the transfer of pollen. While the plant is capable of self-fertilization, its reproductive success is supported by these insect interactions. Once fertilization is complete, the plant produces seeds with a very small mass; the mean seed mass is recorded at 0.00097 g, with values ranging between a minimum of 0.001 g and a maximum of 0.001 g. Following seed maturation, the dispersal syndrome is classified as zoochorous, meaning the seeds are distributed via animals to colonize new habitats.

Dispersal syndrome :

zoochorous

Flowering time :

Jul

Flowering time :

Aug

Pollination syndrome :

insect

Pollination syndrome :

biotic

Seed mass max:

0.001 g

Seed mass mean:

0.00097 g

Self fertilization :

present

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Marrubium peregrinum has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include trans-Caryophyllene, trans-thujone.

trans-Caryophyllene

1. Molecules (Basel, Switzerland)

trans-thujone

1. Molecules (Basel, Switzerland)