Photinia serratifolia
Photinia glabra
Chinese photinia, Chinese photinia or hawthorn, photinia, Taiwanese photinia
Japanese photinia
persistent;
petiole 20–40 mm, villous adaxially when young, glabrescent;
blade narrowly elliptic to oblong, obovate-elliptic, or narrowly obovate, (6–)9–20 × 3–6.5 cm, coriaceous, base rounded or broadly cuneate, margins sharply serrate to rarely inconspicuously toothed or entire, lateral veins 20–30 pairs, apex acuminate, abaxial surfaces slightly villous along veins when young, quickly glabrescent.
persistent;
petiole 10–30 mm, glabrous;
blade elliptic to elliptic-obovate or elliptic-oblong, 5–9 × 2.5–5 cm, coriaceous, base cuneate, margins crenate-serrulate, lateral veins 10–15(–18) pairs, apex abruptly acuminate, surfaces glabrous.
10–18 cm diam.
4–10 cm diam.
without lenticels.
without lenticels.
6–8 mm diam.;
petals suborbiculate, 3–4 mm, glabrous or villous.
7–8 mm diam.;
petals obovate, 2–3 mm, adaxially white-tomentose proximally.
Photinia serratifolia
Photinia glabra
Four varieties of Photinia serratifolia are recorded in China; var. serratifolia occurs in the flora area and has leaf margins prominently serrate, entire only near the base (versus entire to shallowly and inconspicuously serrate in other varieties). Cultivars have been developed, however, differing in growth form, coloration, and leaf margins, and a formal identification to variety is problematic. Chinese photinia can grow larger than P. ×fraseri (‘red tip’) or Japanese photinia, and flowers appear before those of either.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
As noted by C. Kalkman (1973), Lindley cited Crataegus glabra as a synonym of his proposed new species Photinia serrulata. The concept of P. serrulata by Lindley was not the same as that of C. glabra by Thunberg, and P. serrulata Lindley has persisted as a name in use for P. serratifolia. In any case, the publication of P. serrulata was superfluous and illegitimate.
Photinia ×fraseri Dress, or 'red tip,' is a popular hybrid cultivar between P. glabra and P. serrulata, valued especially for its brilliant burgundy red young leaves, which mature to green over weeks through shades of copper red. Shrubs are 3–4(–4.5) m; leaf blades elliptic to oblong-obovate or elliptic-obovate, 7–12 × 3–4(–4.5) cm, basally cuneate, with petioles 1–1.5(–2.3) cm. The leaves are smaller than those of P. serratifolia but tend to be longer and slightly narrower, with sharper teeth, than those of P. glabra. Apparently, fruit set is very low and the plants have not been recorded as escaping cultivation. In Texas, P. ×fraseri produces an abundant flush of new leaves in late October through November, when neither of the parents is doing so.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
Flora NW
LA Plants
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
