Data sources

Each value Trefle shows for Pyrus ussuriensis, with what every source says about it. When sources disagree, the strongest source is shown (how sources are ranked). Values imported before sources were recorded one by one are marked Source not recorded.

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Sourced4 Source not recorded15 Not on the record10 Sources: TRY Plant Trait Database

Field	Shown	What the sources say
Core
Author	Maxim.	No source recorded	Source not recorded
Bibliography	"Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg 15:132. 1857 (""1856"")"	No source recorded	Source not recorded
Phylum	Tracheophyta	No source recorded	Source not recorded
Rank	species	No source recorded	Source not recorded
Status	accepted	No source recorded	Source not recorded
Year	1857	No source recorded	Source not recorded
Descriptive
Common name	Chinese pear	No source recorded	Source not recorded
Family common name	Rose family	No source recorded	Source not recorded
Observations	N. & E. China to Korea, Russian Far East to N. Japan	No source recorded	Source not recorded
Morphology
Average height	1000 cm	1000 cm · TRY Plant Trait Database · Measured · 11 observations · 2026-10-09 TRY 7.0 datasets 68, 92, 214, 251, 460, 554, 918	Sourced
Biological type	phanerophyte	phanerophyte · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 918	Sourced
Flower color	empty	white · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Flower conspicuous	true	No source recorded	Source not recorded
Foliage color	empty	green · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Foliage texture	medium	medium · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Fruit color	empty	green · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Fruit conspicuous	true	No source recorded	Source not recorded
Growth form	Single Stem	No source recorded	Source not recorded
Growth rate	Slow	Slow · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Sourced
Vegetable	false	No source recorded	Source not recorded
Phenology
Duration	empty	perennial · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 918	Not on the record
Ecology
Nitrogen fixation	empty	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 445	Not on the record
Ph maximum	pH 7.5	No source recorded	Source not recorded
Ph minimum	pH 5.5	No source recorded	Source not recorded
Cultivation
Minimum root depth	empty	76 cm · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Usda legacy
C n ratio	empty	29.9 · TRY Plant Trait Database · Measured · 2 observations · 2026-10-09 TRY 7.0 datasets 554	Not on the record
Other
Human usage type	—	food_general, fuelwood, nursery_stock, ornamental, other, timber · TRY Plant Trait Database · Reported · 1 observation · 2026-10-09 TRY 7.0 datasets 68, 92	Not on the record
Salt tolerance	—	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record
Shade tolerance	—	None · TRY Plant Trait Database · Measured · 1 observation · 2026-10-09 TRY 7.0 datasets 92	Not on the record

Pyrus ussuriensis Maxim., 1857 29% complete

Chinese pear

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Data sources