Euphorbia hypericifolia

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a diverse geographical distribution across several key regions of the European continent. In Middle Europe, its presence has been documented in Belgium. Moving toward the Mediterranean, it can be found in Southwestern Europe within both Spain and Sardegna. Its range extends into Southeastern Europe, where it inhabits the landscapes of Greece. Finally, the species is also widely distributed throughout Italy in the Southeastern European region.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Euphorbia hypericifolia is characterized by a highly versatile altitudinal distribution, allowing it to inhabit environments ranging from sea level up to a maximum elevation of 2700 m AMSL. This broad vertical range suggests a high degree of physiological plasticity, enabling the species to persist across diverse climatic gradients. Regarding its preferred environmental settings, the species frequently occurs in "Área Antrópica" (anthropic areas), indicating a significant capacity to colonize habitats modified or disturbed by human activity, such as roadsides, agricultural margins, or urbanized landscapes.

Elevational range max:

2700 m AMSL

Elevational range min:

0 m AMSL

Habitat :

Área Antrópica

Genetics

The genetics of Euphorbia hypericifolia are characterized by complex karyotypic variations, specifically evidenced by its fluctuating chromosome numbers. The species exhibits a range of ploidy levels, with documented chromosome counts of 16, 28, and 56. This numerical variation suggests a significant evolutionary history involving polyploidization events, which likely contribute to the plant's genetic adaptability and morphological diversity within its natural habitat.

Chromosome number :

16, 28, 56

Life history

The life history of Euphorbia hypericiifolia is characterized by its classification as an annual plant, meaning it completes its entire developmental cycle from germination to seed production within a single growing season. In terms of its structural survival strategy, the species functions as a therophyte, a life form defined by plants that survive the unfavorable season as ephemeral seeds, emerging only when environmental conditions are conducive to rapid growth. This lifecycle ensures that the plant avoids periods of extreme temperature or moisture stress by remaining dormant in the soil seed bank until the following year.

Life form :

therophyte

Lifecycle :

annual

Morphology

The morphology of Euphorbia hypericifolia is characterized by its growth form as a non-woody herb. This terrestrial plant exhibits an ascending shoot orientation and functions as a self-supporting organism, rather than a climber or a liana. It is an independent species, showing no parasitic behavior, and is strictly terrestrial in its ecological habit, lacking any epiphytic characteristics. In terms of stature, the plant is relatively small, with a height that typically ranges from a minimum of 0.05 m to a maximum of 0.6 m, maintaining an average plant height of approximately 0.5 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Plant height max:

0.6 m

Plant height mean:

0.5 m

Plant height min:

0.05 m

Shoot orientation :

ascending

Woodiness :

non-woody

Physiology

The physiology of Euphorbia hypericifolia is characterized by a specialized metabolic and morphological profile designed for its specific environmental niche. The plant utilizes a C4 photosynthetic pathway, an adaptation that enhances carbon fixation efficiency and minimizes photorespiration, particularly in warmer or high-light conditions. Morphologically, the leaves are arranged in an opposite pattern and exhibit an obovate form. These leaves vary in size, with a mean length of 1.75 cm and a minimum length of 0.6 cm, reaching a maximum length of 3.5 cm. In terms of width, the leaves typically range from a minimum of 0.4 cm to a mean of 0.6 cm, with a maximum width extending to 1.5 cm. Despite its membership in a genus that often contains water-storing species, this plant does not exhibit succulence. Furthermore, it does not function as a nitrogen fixer, relying instead on external soil nutrient availability for its nitrogen requirements.

Leaf arrangement :

opposite

Leaf form :

obovate

Leaf length max:

3.5 cm

Leaf length mean:

1.75 cm

Leaf length min:

0.6 cm

Leaf width max:

1.5 cm

Leaf width mean:

0.6 cm

Leaf width min:

0.4 cm

Nitrogen fixer :

no

Photosynthetic pathway :

C4

Succulence :

no

Reproduction

The reproduction of Euphorbia hypericiifolia is characterized by a flowering period that typically begins in March and concludes in July, though the timing can be variable across different months. The plant produces brown-colored flowers that rely on biotic pollination, specifically utilizing an insect pollination syndrome to facilitate fertilization. Following successful pollination, the plant develops fruit in the form of a capsule. These capsules are relatively small, with a mean length of 0.15 cm (ranging from a minimum of 0.1 cm to a maximum of 0.15 cm) and a consistent mean width of 0.2 cm (ranging from 0.2 cm to 0.2 cm). The fruit is dehiscence-based, meaning it is dehiscent upon maturity to release its contents. The resulting seeds are minute, possessing a mean mass of 0.00039 g (which is also the minimum and maximum recorded mass) and dimensions including a maximum seed length of 1.1 mm and a maximum seed width of 0.7 mm. Dispersal of the seeds is categorized as anthropochorous, indicating that human activity plays a role in the movement of the species.

Dehiscence :

dehiscent

Dispersal syndrome :

anthropochorous

Flower colour :

brown

Flowering time :

Mar

Flowering time :

Jul

Fruit length max:

0.15 cm

Fruit length min:

0.1 cm

Fruit type :

capsule

Fruit width max:

0.2 cm

Pollination syndrome :

insect

Pollination syndrome :

biotic

Seed length max:

1.1 mm

Seed mass mean:

0.00039 g

Seed width max:

0.7 mm

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Euphorbia hypericifolia has 5 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Caoutchouc, Gallic acid, Phorbol Esters, Tannin, resin.

Caoutchouc

1. Dr. Duke

Gallic acid

1. Dr. Duke

Phorbol Esters

1. Dr. Duke

Tannin

1. Dr. Duke

resin

1. Dr. Duke

Activities

Euphorbia hypericifolia has 75 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include ACE-Inhibitor, Analgesic, Anthelmintic, AntiHIV, AntiMRSA.

ACE-Inhibitor

1. Dr. Duke

Analgesic

1. Dr. Duke

Anthelmintic

1. Dr. Duke

AntiHIV

1. Dr. Duke

AntiMRSA

1. Dr. Duke

Antiadenovirus

1. Dr. Duke

Antiallergenic

1. Dr. Duke

Antianaphylactic

1. Dr. Duke

Antiangiogenic

1. Dr. Duke

Antiasthmatic

1. Dr. Duke

Preparations

Euphorbia hypericifolia has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include Aqueous extracts.

Aqueous extracts

1. Antimicrobial agents and chemotherapy