Category:Ligustrum robustum

Names and Synonyms

Common Names

• Privet
• tree privet
• Sri Lankan privet

Scientific Names

Accepted name

Synonyms

• Phillyrea robusta
• Visiania robusta
• Olea robusta

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, it is a member of the Oleaceae family. Finally, it is classified under the genus Ligustrum as the species Ligustrum robustum.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical range spanning across several distinct regions. Within the Indian Subcontinent, its presence is noted in India, Bangladesh, and Assam. Moving toward the Western Indian Ocean, the species is also found in Mauritius. Additionally, it has established itself on the island of Réunion. Consequently, its distribution covers diverse ecological zones across both the mainland and oceanic islands.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Ligustrum robustum is characterized by its presence across a significant altitudinal gradient, reflecting its ability to adapt to varying montane environmental conditions. This species thrives within a broad elevational range that spans from a minimum of 400 m AMSL to a maximum of 2000 m AMSL. Throughout its distribution, the plant maintains a mean elevation of approximately 1200 m AMSL, suggesting that its optimal ecological niche is centered within mid-elevation montane ecosystems. This vertical distribution indicates that the plant can tolerate a diverse array of temperature regimes and atmospheric pressures, ranging from warmer lowland foothills to cooler, higher-altitude montane habitats.

Elevational range max:

2000 m AMSL

Elevational range mean:

1200 m AMSL

Elevational range min:

400 m AMSL

Life history

The life history of Ligustrum robustum is characterized by a perennial lifecycle, allowing the plant to persist through multiple growing seasons and establish a stable presence in its environment. In terms of its structural growth and survival strategy, it is classified as a phanerophyte, as it maintains its conductive organs and buds well above the ground level. Additionally, within certain ecological niches or specific growth stages, its life form can be characterized as a nanophanerophyte, reflecting its capacity to maintain relatively small but visible woody structures.

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Ligustrum robustum is characterized by its woody growth form, primarily manifesting as a tree. This plant displays significant structural variation in stature, with heights ranging from a minimum of 1 m to a maximum of 10 m, maintaining an average plant height of approximately 5.5 m. Although it possesses characteristics that allow it to function as a self-supporting liana or vine, it is fundamentally classified as a self-supporting organism rather than an obligatory climber. As an independent species, it does not exhibit parasitic behavior, and it follows a terrestrial life strategy rather than an epiphytic one.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

10 m

Plant height mean:

5.5 m

Plant height min:

1 m

Woodiness :

woody

Physiology

The physiological profile of Ligustrum robustum is characterized by distinct morphological variations in its foliage, which plays a critical role in its metabolic and photosynthetic capacity. The leaves exhibit a significant range in dimensions, with a mean leaf length of 7.5 cm, though they can vary from a minimum of 4 cm to a maximum of 11 cm. Complementing this longitudinal variation is a specialized width distribution, where the leaf width typically averages 3 cm, spanning a minimum of 2 cm to a maximum of 4 cm. These specific leaf dimensions and their associated surface area fluctuations suggest an adaptive physiological mechanism for regulating transpiration and light interception, ensuring efficient nutrient transport and gas exchange throughout the plant's development.

Leaf length max:

11 cm

Leaf length mean:

7.5 cm

Leaf length min:

4 cm

Leaf width max:

4 cm

Leaf width mean:

3 cm

Leaf width min:

2 cm

Reproduction

The reproduction of Ligustrum robustum is characterized by the development of inflorescences that typically range in length from a minimum of 0.05 m to a maximum of 0.15 m. Following pollination, the plant produces fruits with distinct dimensional variations. The fruit length varies from a minimum of 0.7 cm to a maximum of 1 cm, with an average length of approximately 0.85 cm. In terms of width, the fruits measure at least 0.3 cm and can reach a maximum width of 0.6 cm, maintaining a mean width of 0.45 cm.

Fruit length max:

1 cm

Fruit length mean:

0.85 cm

Fruit length min:

0.7 cm

Fruit width max:

0.6 cm

Fruit width mean:

0.45 cm

Fruit width min:

0.3 cm

Inflorescence length max:

0.15 m

Inflorescence length min:

0.05 m

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Ligustrum robustum has 1 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf.

Leaf

1. Frontiers in pharmacology
2. Journal of natural products

Chemicals

Ligustrum robustum has 4 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include Acteoside, LIGUPURPUROSIDE C, Ligupurpuroside D, ligupurpuroside A.

Acteoside

1. Frontiers in pharmacology
2. Phytotherapy research : PTR

LIGUPURPUROSIDE C

1. Phytotherapy research : PTR

Ligupurpuroside D

1. Phytotherapy research : PTR

ligupurpuroside A

1. Phytotherapy research : PTR

Activities

Ligustrum robustum has 3 reported activities identified across 2 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antioxidant, Bacteriostatic.

Antibacterial

1. World journal of gastroenterology

Antioxidant

1. Journal of natural products

Bacteriostatic

1. World journal of gastroenterology

Conditions

Ligustrum robustum has 6 reported investigations on conditions identified across 2 scientific publications and several other databases. The most consistently reported conditions include hyperlipidemia, obesity, weight loss, cardiovascular diseases, free fatty acid.

Hyperlipidemia

1. Journal of ethnopharmacology
2. Phytotherapy research : PTR

Obesity

1. World journal of gastroenterology
2. Journal of ethnopharmacology

Weight loss

1. World journal of gastroenterology
2. Frontiers in pharmacology

Cardiovascular diseases

1. Frontiers in pharmacology

Free fatty acid

1. Phytotherapy research : PTR

Low-density lipoprotein cholesterol

1. Phytotherapy research : PTR

Preparations

Ligustrum robustum has 2 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include aqueous extract, ethanol extract.

Aqueous extract

1. World journal of gastroenterology

Ethanol extract

1. Journal of natural products