Asian pear

Names and Synonyms

Common Names

• Oriental pear tree
• Asian Pear
• Sand pear

Scientific Names

Accepted name

Synonyms

• Pyrus autumnalis
• Pyrus autumnalis var. culta
• Pyrus autumnalis f. discolor
• Pyrus autumnalis f. hiemalis
• Pyrus autumnalis f. pallescens
• Pyrus communis var. sinensis
• Pyrus serotina var. culta
• Pyrus pyrifolia var. culta
• Pyrus pyrifolia f. hiemalis
• Pyrus pyrifolia var. montana
• Pyrus lindleyi
• Pyrus malus var. sinensis
• Pyrus lasiogyna var. lanuginosa
• Pyrus lakuhokuensis
• Pyrus kiusiana
• Pyrus pseudocalleryana
• Pyrus saidaeana
• Pyrus togashiana
• Pyrus pyrifolia f. stapfiana
• Pyrus nehiyamadonis
• Pyrus montana var. rehderi
• Pyrus kleinhofiana
• Pyrus umemurana
• Pyrus uipongensis
• Pyrus serotina var. stapfiana
• Pyrus asakeensis
• Pyrus babauttiagi
• Pyrus sinensis var. culta
• Pyrus cuneata
• Pyrus incubacea
• Pyrus higoensis
• Pyrus autumnalis f. sieboldii
• Pyrus communis var. autumnalis
• Pyrus arakiana
• Pyrus kiushiana
• Pyrus lasiogyna
• Pyrus pyrifolia f. discolor
• Pyrus pyrifolia f. pallescens
• Pyrus pyrifolia var. talyschensis
• Pyrus serotina
• Pyrus sohayakiensis
• Pyrus tajimaensis
• Pyrus uyematsuana
• Pyrus yohrohensis
• Pyrus communis var. hiemalis
• Morus rubra var. japonica
• Pyrus tobisimensis
• Pyrus tsuchiyana
• Pyrus tungusiana
• Ficus pyrifolia
• Pyrus tambana
• Morus cathayana var. japonica
• Pyrus pseudouipongensis

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. It is classified within the order Rosales and the family Rosaceae. Finally, its taxonomic identity is defined by the genus Pyrus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution spanning several key regions across Asia. In Central Asia, it can be specifically found within the borders of Tajikistan. Its presence in China is widespread, stretching from the South-Central regions to the Southeast. Furthermore, the species is documented as growing in the northern territory of Inner Mongolia. Finally, its range extends into Eastern Asia, where it is native to Japan.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Pyrus pyrifolia is defined by a broad altitudinal distribution that allows it to occupy diverse montane and sub-montane landscapes. It thrives across a significant vertical gradient, spanning from a minimum elevation of 100 m AMSL to a maximum altitude of 2300 m AMSL. This wide environmental tolerance suggests an ability to adapt to varying temperature regimes and precipitation patterns, although its presence is most characteristic of mid-range elevations, with a mean elevational range centered around 750 m AMSL. This specific elevational positioning influences its interaction with local soil compositions and microclimates, dictating its niche within its native ecosystem.

Elevational range max:

2300 m AMSL

Elevational range mean:

750 m AMSL

Elevational range min:

100 m AMSL

Life history

The life history of Pyrus pyrifolia is characterized by its status as a perennial species, meaning it persists through many growing seasons rather than completing its cycle in a single year. As a long-lived woody plant, its life cycle begins with the germination of seeds, followed by a developmental phase where it establishes a robust root system and a woody framework. Throughout its multi-year lifespan, the plant undergoes seasonal cycles of vegetative growth and reproductive phases, typically requiring several years of maturity before it begins to produce flowers and fruit. Once established, its perennial nature allows it to endure seasonal fluctuations, continuously contributing to its biomass and maintaining its presence in its ecological niche over many years.

Lifecycle :

perennial

Morphology

The morphology of Pyrus pyrifolia is characterized by a robust, woody growth form, specifically manifesting as a self-supporting tree. As a terrestrial species, it does not exhibit aquatic, semiaquatic, or epiphytic tendencies, nor does it function as a parasite, maintaining an independent life cycle. The plant's physical stature is substantial, with a height that typically ranges from a minimum of 7 meters to a maximum of 15 meters, reaching a mean height of approximately 11 meters. Its structure is inherently self-supporting, lacking any climbing or vine-like habits.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

15 m

Plant height mean:

11 m

Plant height min:

7 m

Woodiness :

woody

Physiology

The physiology of Pyrus pyrifolia is characterized by a C3 photosynthetic pathway, which governs its carbon fixation processes and energy production efficiency. The vegetative morphology of the plant is defined by specific foliar dimensions that support its metabolic needs, with leaf lengths typically ranging from a minimum of 7 cm to a maximum of 12 cm, maintaining an average length of approximately 9.5 cm. Complementing these longitudinal dimensions, the leaf width fluctuates between a minimum of 4 cm and a maximum of 6.5 cm, providing the necessary surface area for gas exchange and light interception essential to its C3 metabolic cycle.

Leaf length max:

12 cm

Leaf length mean:

9.5 cm

Leaf length min:

7 cm

Leaf width max:

6.5 cm

Leaf width min:

4 cm

Photosynthetic pathway :

C3

Reproduction

The reproduction of Pyrus pyrifolia is characterized by a specific flowering period that typically begins in December and concludes in April, though the timing can be variable. During this season, the plant produces inflorescences that range in length from a minimum of 0.05 m to a maximum of 0.07 m. The individual flowers are relatively small, with lengths measuring between 2.5 cm and 3.5 cm. Following successful pollination, the plant develops fleshy fruits that contain seeds with highly consistent physical properties; the seeds exhibit a uniform mass of 0.045 g (with no variation between minimum and maximum values) and a constant volume of 86 mm³, representing both the minimum, maximum, and mean measurements.

Flower length max:

3.5 cm

Flower length min:

2.5 cm

Flowering time :

Dec

Flowering time :

Apr

Fruit dryness :

fleshy

Inflorescence length max:

0.07 m

Inflorescence length min:

0.05 m

Seed mass mean:

0.045 g

Seed volume max:

86 mm³

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Pyrus pyrifolia 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. Microbial drug resistance (Larchmont, N.Y.)

Chemicals

Pyrus pyrifolia has 3 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include LIGNIN, Lupeol, hydroquinone.

LIGNIN

1. Frontiers in plant science

Lupeol

1. Frontiers in pharmacology

hydroquinone

1. Microbial drug resistance (Larchmont, N.Y.)