Maytenus orbicularis

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a highly fragmented and diverse geographical distribution across several continents. In Central Asia, it can be found growing within the borders of Tajikistan. Its range extends to the Northeastern United States, specifically within the state of New York. Moving to Western South America, the species is present in both Ecuador and Peru. Finally, it also inhabits the unique ecosystems of the Galápagos Islands.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Maytenus orbicularis is characterized by a highly specialized and narrow altitudinal distribution, strictly confined to a specific environmental niche. The species is found exclusively at a consistent elevation, with its minimum, mean, and maximum elevational range all converging at 1100 m AMSL. This precise ecological requirement suggests that the plant is adapted to the specific climatic, thermal, and moisture regimes found at this exact altitude, likely occupying a stable montane or sub-montane habitat where these parameters remain relatively constant. Such a limited elevational range indicates a high degree of specialization, making the species highly dependent on the stability of the mid-elevation ecosystems within its geographic range.

Elevational range max:

1100 m AMSL

Life history

The life history of Maytenus orbicularis is characterized by its classification as a perennial plant, meaning it maintains its existence and biological functions over multiple years rather than completing a single reproductive cycle within a single season. As a long-lived species, it avoids the rapid turnover seen in annuals or the intermediate stage of biennials, instead focusing on long-term survival and sustained growth within its ecological niche. This perennial nature allows the plant to establish a robust structural foundation, enabling it to withstand seasonal fluctuations and invest energy into repeated reproductive efforts over an extended lifespan.

Lifecycle :

perennial

Morphology

The morphology of Maytenus orbicularis is characterized by its woody growth form, specifically manifesting as a shrub. This plant is a terrestrial species that functions independently, as it is neither an epiphyte nor a parasite. In terms of structural stature, it is a self-supporting plant rather than a climber or vine. The plant exhibits significant variation in height, with a minimum recorded height of 1.5 m, a mean height of approximately 2 m, and a maximum height reaching up to 6 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height max:

6 m

Plant height mean:

2 m

Plant height min:

1.5 m

Woodiness :

woody

Physiology

The physiological profile of Maytenus orbicularis is characterized by specific morphological dimensions of its foliage, which serve as key indicators of its vegetative development. The leaves exhibit a notable range in longitudinal growth, with a mean leaf length of 5 cm, extending from a minimum of 3 cm to a maximum of 7 cm. This longitudinal variation is complemented by a corresponding breadth in the leaf blades, where the width fluctuates between a minimum of 2 cm and a maximum of 4.5 cm, maintaining a mean leaf width of 3.25 cm. These precise measurements in leaf length and width reflect the plant's structural adaptation and photosynthetic surface area allocation.

Leaf length max:

7 cm

Leaf length mean:

5 cm

Leaf length min:

3 cm

Leaf width max:

4.5 cm

Leaf width mean:

3.25 cm

Leaf width min:

2 cm

Reproduction

The reproduction of Maytenus orbicularis is characterized by specific floral and fruit dimensions that facilitate its reproductive cycle. The plant produces small inflorescences that range in length from a minimum of 0.01 m to a maximum of 0.02 m. Within these inflorescences, the individual flowers are diminutive, measuring between 0.3 cm and 0.4 cm in length. Following successful pollination, the plant develops fruits that exhibit a relatively consistent size distribution; these fruits have a minimum length of 0.8 cm, a mean length of 0.9 cm, and can reach a maximum length of 1 cm.

Flower length max:

0.4 cm

Flower length min:

0.3 cm

Fruit length max:

1 cm

Fruit length mean:

0.9 cm

Fruit length min:

0.8 cm

Inflorescence length max:

0.02 m

Inflorescence length min:

0.01 m

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Maytenus orbicularis has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Betulin.

Betulin

1. Dr. Duke

Activities

Maytenus orbicularis has 12 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include AntiHIV, Anticarcinomic, Antifeedant, Antiflu, Antiinflammatory.

AntiHIV

1. Dr. Duke

Anticarcinomic

1. Dr. Duke

Antifeedant

1. Dr. Duke

Antiflu

1. Dr. Duke

Antiinflammatory

1. Dr. Duke

Antitumor

1. Dr. Duke

Antiviral

1. Dr. Duke

Aphidifuge

1. Dr. Duke

Cytotoxic

1. Dr. Duke

Hypolipemic

1. Dr. Duke