Ligustrum expansum

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Ligustrum thibeticum
• Ligustrum purpurascens
• Ligustrum robustum subsp. chinense

Sources: Wikidata

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 classified under the family Oleaceae and the genus Ligustrum. Specifically, it is identified as the species Ligustrum expansum.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical range concentrated within East and Southeast Asia. In China, its presence is noted across the South-Central regions. It is also widely distributed throughout the Southeast portions of China. Beyond Chinese borders, the species extends into the Indo-China peninsula. Specifically, it can be found growing within the country of Vietnam.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Ligustrum expansum is characterized by a highly specialized vertical distribution within its native habitat, exhibiting a narrow environmental niche. The species is strictly confined to a specific altitudinal band, with its minimum, mean, and maximum elevational ranges all converging at a constant level of 1300 m AMSL. This precise ecological requirement suggests that the plant is adapted to the specific climatic conditions, atmospheric pressures, and temperature gradients found exclusively at this altitude, indicating a lack of tolerance for significant shifts in elevation.

Elevational range max:

1300 m AMSL

Life history

The life history of Ligustrum expansum is characterized by its status as a perennial species, allowing it to persist across multiple growing seasons. In terms of its structural growth habits and ecological positioning, it exhibits a dual classification of life forms, functioning as both a phanerophyte and a nanophanerophyte. As a phanerophyte, the plant maintains its buds at a significant distance above the ground, typically through woody stems or branches, while its nanophanerophyte characteristics suggest a capacity to maintain smaller, low-growing woody structures that remain relatively close to the soil surface.

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Ligustrum expansum is characterized by a woody growth form, specifically developing as a shrub. This plant typically reaches a mean height of approximately 3 meters. In terms of its structural habit, it functions as a self-supporting climber, meaning it does not require external structures to maintain its posture. As an independent organism, it does not exhibit parasitic behavior and maintains a terrestrial life habit rather than being an epiphyte.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height mean:

3 m

Woodiness :

woody

Physiology

The physiology of Ligustrum expansum is characterized by distinct morphological variations in its foliage, which play a critical role in its photosynthetic capacity and environmental adaptation. The leaf dimensions exhibit a significant range, with leaf lengths varying from a minimum of 2.5 cm to a maximum of 12 cm, maintaining an average length of 7.25 cm. This longitudinal development is complemented by a corresponding breadth in the leaf blades, where widths range from a minimum of 1.5 cm to a maximum of 5.5 cm, resulting in a mean leaf width of 3.5 cm. These specific structural parameters dictate the surface area available for gas exchange and light absorption, influencing the plant's metabolic efficiency and overall physiological vigor.

Leaf length max:

12 cm

Leaf length mean:

7.25 cm

Leaf length min:

2.5 cm

Leaf width max:

5.5 cm

Leaf width mean:

3.5 cm

Leaf width min:

1.5 cm

Reproduction

The reproduction of Ligustrum expansum is characterized by the development of inflorescences and subsequent fruit production with highly consistent morphological dimensions. The inflorescences exhibit a variable length, ranging from a minimum of 0.1 m to a maximum of 0.18 m. Following pollination, the plant produces fruits that demonstrate remarkable uniformity in size; the fruit length is consistently measured at 1 cm, with no deviation between its minimum, mean, and maximum values. Similarly, the fruit width remains constant throughout its development, maintaining a steady measurement of 0.5 cm across its minimum, mean, and maximum parameters.

Fruit length max:

1 cm

Fruit width max:

0.5 cm

Inflorescence length max:

0.18 m

Inflorescence length min:

0.1 m

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Ligustrum expansum has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Acteoside.

Acteoside

1. Journal of natural products
2. Planta medica