Flora of North America species comparison

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Pyrus serrulata

serrulate pear
Habit Plants 80–100 dm.
Branches

purplish brown or dark brown, brown-tomentose when young, glabrescent;

thorns not recorded.
Leaves

petiole 3.5–7.5 cm, brown-tomentose when young;

blade ovate or narrowly ovate, 5–11 × 3.5–7.5 cm, base rounded or broadly cuneate, margins serrulate, apex acuminate, surfaces glabrous or brown-tomentose when young.
Pedicels

3–5 cm, pubescent when young.
Flowers

20–30 mm diam.;

sepals triangular-ovate, 3 mm, apex acute or acuminate;

petals white, broadly ovate, 10–12 mm;

ovaries 3(–4)-locular;

styles 3(or 4).
Pomes

dark brown, subglobose or obovoid, 15–22 mm diam.;

sepals mostly persistent.
2n

= 34.

Pyrus serrulata
Phenology Flowering Apr.
Habitat Fields
Elevation 300 m (1000 ft)
Distribution
from FNA
MO; Asia (China) [Introduced in North America]
Discussion

The tree nursery industry has associated the common name "red spire" with this species but that name is frequently applied also to Pyrus calleryana. Because it is sometimes referred to simply as "serrulata," the name "serrulate pear" seems appropriate. Pyrus serrulata has been considered a hybrid, P. calleryana × P. pyrifolia, but recent taxonomic work has accorded it specific rank. The only report of this species as an escape in North America is based on a fruiting specimen collected in Howell County, Missouri. Potential hybrids involving P. calleryana may resemble this species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 9, p. 482.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Pyrus
Sibling taxa
P. calleryana, P. communis, P. cordata, P. nivalis, P. pyrifolia
Name authority Rehder: Proc. Amer. Acad. Arts 50: 234. (1915)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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