Euphorbia wallichii

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Tithymalus wallichii
• Euphorbia duclouxii
• Euphorbia yunnanensis
• Euphorbia wallichii subsp. duclouxii

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 Malpighiales, it is classified under the family Euphorbiaceae. Finally, its taxonomic designation is completed within the genus Euphorbia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several key regions in Asia. Within Western Asia, it can be found specifically in Afghanistan. In the vast territory of China, its presence is noted in the South-Central regions as well as in Qinghai. Furthermore, the species is documented to grow within the high-altitude terrain of Tibet. Finally, its range extends into the Indian Subcontinent, particularly throughout the East Himalaya.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Euphorbia wallichii is defined by its adaptation to high-altitude montane environments, where it occupies a broad vertical distribution across significant topographical gradients. This species is typically found within a specialized altitudinal niche, ranging from a minimum elevation of 1800 m AMSL to a maximum elevation of 4700 m AMSL. The distribution of the plant centers around a mean elevation of approximately 3250 m AMSL, suggesting that it is most prevalent in subalpine or alpine zones where it must contend with the specific climatic pressures characteristic of these heights. This wide elevational span indicates a robust physiological capacity to endure varying temperature regimes and atmospheric conditions found throughout these mountain ecosystems.

Elevational range max:

4700 m AMSL

Elevational range mean:

3250 m AMSL

Elevational range min:

1800 m AMSL

Life history

The life history of Euphorbia wallichii is characterized by a perennial lifecycle, allowing the plant to persist through multiple growing seasons rather than completing its cycle in a single year. Structurally, it is classified as a hemicryptophyte, a life form where the perennating buds are located at or just below the soil surface, protected by the leaf litter or the substrate. This specific growth habit enables the plant to survive unfavorable environmental conditions by maintaining its dormant buds near the ground level, ensuring its continued presence and ability to regenerate during favorable seasonal shifts.

Life form :

hemicryptophyte

Lifecycle :

perennial

Morphology

The morphology of Euphorbia wallichii is characterized by a growth form classified as a herb, exhibiting a non-woody structure throughout its development. As a terrestrial species, it thrives in soil-based environments rather than growing as an epiphyte. The plant functions as an independent organism, showing no parasitic tendencies toward other vegetation. In terms of its physical habit, it acts as a self-supporting climber, utilizing its structural properties to ascend without the need for external hosts or obligatory climbing mechanisms.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Woodiness :

non-woody

Physiology

The physiological characteristics of Euphorbia wallichii are prominently reflected in its foliar morphology and structural dimensions. The leaves exhibit a distinct range of development, with a mean leaf length of 7.5 cm, though they can reach a maximum length of 10 cm or decrease to a minimum of 5 cm. This variation in longitudinal growth is accompanied by a specialized width profile, where the leaf width fluctuates between a minimum of 1.2 cm and a maximum of 2.9 cm, maintaining a mean width of approximately 2.05 cm. These morphological parameters indicate a controlled leaf expansion pattern, which is essential for the plant's photosynthetic efficiency and its physiological adaptation to its specific ecological niche.

Leaf length max:

10 cm

Leaf length mean:

7.5 cm

Leaf length min:

5 cm

Leaf width max:

2.9 cm

Leaf width mean:

2.05 cm

Leaf width min:

1.2 cm

Reproduction

The reproduction of Euphorbia wallichii is characterized by a specific flowering window and the development of distinct fruit structures. The flowering period typically commences in August and concludes in September, though the timing can be variable throughout the year. Following pollination, the plant produces fruits that exhibit consistent morphological dimensions. These fruits have a mean length and width of 1 cm, with a measured range spanning from a minimum of 0.9 cm to a maximum of 1.1 cm in both length and width.

Flowering time :

Aug

Flowering time :

Sep

Fruit length max:

1.1 cm

Fruit length mean:

1 cm

Fruit length min:

0.9 cm

Fruit width max:

1.1 cm

Fruit width mean:

1 cm

Fruit width min:

0.9 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Euphorbia wallichii has 2 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 root, leaf.

Root

1. Organic letters
2. Iranian journal of pharmaceutical research : IJPR

Leaf

1. Molecules (Basel, Switzerland)

Chemicals

Euphorbia wallichii has 7 reported phytochemicals identified across 3 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids, Tannins, Cardiac Glycosides, Cardiac glycoside, NO.

Flavonoids

1. Molecules (Basel, Switzerland)
2. Iranian journal of pharmaceutical research : IJPR

Tannins

1. Iranian journal of pharmaceutical research : IJPR
2. Toxicology and industrial health

Cardiac Glycosides

1. Iranian journal of pharmaceutical research : IJPR

Cardiac glycoside

1. Toxicology and industrial health

NO

1. Pharmaceutical biology

Saponins

1. Iranian journal of pharmaceutical research : IJPR

Terpenoids

1. Toxicology and industrial health

Activities

Euphorbia wallichii has 2 reported activities identified across 3 scientific publications and several other databases. The most consistently reported activities include Antioxidant, Cytotoxic.

Antioxidant

1. Iranian journal of pharmaceutical research : IJPR

Cytotoxic

1. Iranian journal of pharmaceutical research : IJPR

Medicinal Uses

Euphorbia wallichii has 3 reported medicinal uses identified across 3 scientific publications and several other databases. The most consistently reported uses include Malignant Melanoma, cancer, osteoporosis.

Most Reported Uses

Preparations