Harbin pear

Names and Synonyms

Common Names

• Harbin pear
• Manchurian pear
• Ussuri pear
• Ussurian pear

Scientific Names

Accepted name

Synonyms

• Pyrus communis var. ussurensis
• Pyrus sinensis var. ussuriensis

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified within the phylum Streptophyta and the class Equisetopsida. It is further organized under the subclass Magnoliidae and the order Rosales, falling within the family Rosaceae. Finally, its taxonomic identity is defined by its membership in the genus Pyrus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical range stretching across significant portions of Northern Eurasia. In Eastern Europe, its presence is noted within both Central European Russia and East European Russia. Moving toward the Asian continent, the species is widely distributed throughout the Russian Far East. Specifically, it can be found in the Amur and Khabarovsk regions of this territory. Additionally, its habitat extends into the Primorye area, completing its extensive natural distribution.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Pyrus ussuriensis is characterized by its adaptation to diverse montane and riparian environments, specifically thriving within forest ecosystems, mountainous terrains, and along riverbanks. This species exhibits a broad altitudinal distribution, occupying a significant vertical gradient in its natural landscape. It can be found at elevations starting from a minimum of 100 m AMSL, reaching a mean elevation of approximately 1050 m AMSL, and extending up to a maximum altitude of 2000 m AMSL. This wide elevational range allows the plant to inhabit various microclimates, ranging from lower-altitude forested valleys to higher mountain slopes.

Elevational range max:

2000 m AMSL

Elevational range mean:

1050 m AMSL

Elevational range min:

100 m AMSL

Habitat :

forest, mountains, rivers

Life history

The life history of Pyrus ussuriensis is characterized by its nature as a perennial species, ensuring its long-term presence within its ecological niche. As a long-lived woody plant, it undergoes a complex developmental cycle that begins with seed germination, followed by several years of establishment and vegetative growth before reaching reproductive maturity. Throughout its extended lifespan, the plant undergoes seasonal transitions, transitioning from periods of active growth and flowering to periods of dormancy to survive environmental fluctuations. Its perennial habit allows it to accumulate biomass and energy reserves over multiple seasons, facilitating repeated reproductive cycles and contributing to the stability of its habitat.

Lifecycle :

perennial

Morphology

The morphology of Pyrus ussuriensis is characterized by its stature as a woody tree, exhibiting a self-supporting growth form. This species typically reaches a height ranging from a minimum of 10 m to a maximum of 15 m, with a mean height of approximately 15 m. As a terrestrial plant, it does not possess aquatic or semiaquatic adaptations, nor does it function as an epiphyte. Furthermore, it is an independent organism, lacking any parasitic tendencies, and relies on its robust, woody structure to maintain its upright, tree-like habit.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height mean:

15 m

Plant height min:

10 m

Woodiness :

woody

Physiology

The physiology of Pyrus ussuriensis is characterized by a C3 photosynthetic pathway, which dictates its carbon fixation processes and metabolic efficiency in its native environment. The plant's vegetative performance is closely tied to its leaf morphology, which exhibits significant dimensional variability. The leaves typically possess a mean length of 7.5 cm, though they can range from a minimum of 5 cm to a maximum of 10 cm. Complementing this longitudinal variation is the leaf width, which fluctuates between a minimum of 4 cm and a maximum of 6 cm. These morphological dimensions support the photosynthetic surface area necessary for the plant's energy production under the C3 metabolic regime.

Leaf length max:

10 cm

Leaf length mean:

7.5 cm

Leaf length min:

5 cm

Leaf width max:

6 cm

Leaf width min:

4 cm

Photosynthetic pathway :

C3

Reproduction

The reproduction of Pyrus ussuriensis is characterized by a specific seasonal flowering period and the production of distinct fruit and seed structures. The flowering phase typically commences in May and concludes within the same month, representing a concentrated reproductive window. During this period, the flowers exhibit dimensions ranging from a minimum length of 3 cm to a maximum of 3.5 cm. Following successful pollination, the plant develops fruits that vary significantly in size; the fruit length ranges from a minimum of 2 cm to a maximum of 6 cm, with an average length of 4 cm. Similarly, the fruit width fluctuates between 2 cm and 6 cm, maintaining an average width of 4 cm. The reproductive cycle culminates in the production of seeds, which possess a mean mass of approximately 0.0429 g, with individual seed masses ranging from a minimum of 0.0289 g to a maximum of 0.05 g.

Flower length max:

3.5 cm

Flower length min:

3 cm

Flowering time :

May

Fruit length max:

6 cm

Fruit length mean:

4 cm

Fruit length min:

2 cm

Fruit width max:

6 cm

Fruit width mean:

4 cm

Fruit width min:

2 cm

Seed mass max:

0.05 g

Seed mass mean:

0.042913333 g

Seed mass min:

0.0289 g

Sources: Global Inventory of Floras and Traits (GIFT)

Activities

Pyrus ussuriensis has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antioxidant.

Antioxidant

1. Food & function

Conditions

Pyrus ussuriensis has 2 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include inflammation, oxidative stress.

Inflammation

1. Food & function

Oxidative stress

1. Food & function

Preparations

Pyrus ussuriensis has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include ethanol extract of Ussurian pear.

Ethanol extract of ussurian pear

1. Food & function