Cornus controversa

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a wide geographical distribution across several distinct regions of East Asia. In the Russian Far East, its range includes the Kuril Islands and Sakhalin. Moving into China, it can be found throughout the Manchuria region. The species also inhabits the South-Central areas of the country. Finally, its distribution extends as far south as the island of Hainan.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Cornus controversa is characterized by its specialized habitat requirements within high-altitude environments, where it thrives within a specific vertical distribution. This species is primarily found in montane zones, occupying an elevational range that begins at a minimum of 1700 m AMSL and extends up to a maximum of 2500 m AMSL. Within this altitudinal belt, the plant is adapted to the unique climatic conditions, temperature fluctuations, and soil compositions typical of mid-to-high elevation ecosystems. Its presence within this particular range suggests a dependency on the specific moisture regimes and light availability found in these mountain landscapes, which influence its growth patterns and distribution throughout its natural habitat.

Elevational range max:

2500 m AMSL

Elevational range min:

1700 m AMSL

Life history

The life history of Cornus controversa is characterized by its classification as a perennial species, meaning it survives for multiple years through successive growing seasons. In terms of its structural growth strategy, the plant functions as a phanerophyte, maintaining its buds well above the ground level during unfavorable conditions. This phanerophyte life form is consistent across its developmental stages, ensuring its long-term establishment and persistence within its ecological niche.

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Cornus controversa is characterized by a woody growth form, primarily manifesting as a self-supporting tree. It functions as an independent organism, neither acting as a parasite nor an epiphyte, maintaining a terrestrial existence. In terms of stature, the plant reaches a significant height, typically ranging from a minimum of 9 meters to a maximum of 20 meters. As a self-supporting tree, it does not exhibit climbing habits such as a liana or vine, instead establishing a robust, upright structure.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

20 m

Plant height min:

9 m

Woodiness :

woody

Physiology

The physiology of Cornus controversa is characterized by a C3 photosynthetic pathway, a common metabolic strategy in temperate woody species that involves the direct fixation of carbon dioxide through the Calvin cycle. This pathway reflects its adaptation to environments where moisture and temperature allow for efficient gas exchange without the specialized carbon-concentrating mechanisms found in C4 or CAM plants. Additionally, the structural integrity and mechanical properties of its tissues are supported by a stem specific density (SSD) with a mean value of 621 mg/cm³. This density indicates a robust wood structure, contributing to the plant's ability to maintain upright growth and withstand environmental stressors through its lignified vascular tissues.

Photosynthetic pathway :

C3

Stem specific density (SSD) mean:

621 mg/cm³

Reproduction

The reproduction of Cornus controversa is characterized by a specific flowering period that occurs primarily in June, with both the flowering start and flowering end concentrated within this month. The plant produces fleshy fruits that contain seeds with distinct physical properties. The seeds exhibit a consistent volume of 51 mm³, as both the minimum and maximum recorded volumes, as well as the mean volume, are identical at this value. In terms of mass, the seeds show slight variability, with a minimum weight of 0.032 g, a maximum weight of 0.0503 g, and an average seed mass of approximately 0.043773333 g.

Flowering time :

Jun

Fruit dryness :

fleshy

Seed mass max:

0.0503 g

Seed mass mean:

0.043773333 g

Seed mass min:

0.032 g

Seed volume max:

51 mm³

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

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

Leaf

1. Phytochemistry

Preparations

Cornus controversa has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include leaves.

Leaves

1. Phytochemistry