Oaks of the World

General data Classifications List of species Local names Back to
home page

  Quercus myrsinifolia
Author Blume 1850
Synonyms Cyclobalanopsis myrsinifolia (Blume) Oerstedt 1871
bambusaefolia Fortune 1860 not Hance 1857
bambusifolia Mast. not Hance
glauca fo. subintegrifolia Ling 1952
vibrayeana Franch. & Sav. 1878
Local names shira-kashi ; xiao ye qing gang ;
Range South China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang); Japan; Korea; Laos; Thailand; Vietnam; 200-2500 m; introduced in Europe in 1854 by Robert Fortune:
Growth habit to 10 m tall, sometimes more, but shrubby in cultivation; often multitrunk; the width of crown is the same as the height of the tree;
Leaves 5-12 x 2-4 cm ; evergreen (2 years); oval to elliptic-lanceolate; hard; hairless on both sides; light green above, slightly glaucous beneath; young leaves are purple-bronze, glabrous; remotely dentate in apical half; apex acuminate to shortly caudate, base cuneate or almost rounded; 9-14 vein pairs, straight, with midrib slightly impressed above; petiole 1.5 cm long, yellow green, hairless;
Flowers male flowers in early summer; pistillate flowers on young shoots, 2 to 6 on a slender peduncle;
Fruits acorn 1.4-2.5 cm long, 1-1.5 cm wide; in clusters of 2 to 8, on a 3-4 cm long peduncle; dark brown; enclosed 1/3 or 1/2 by cup; cup 5-8 mm long, 10-18 cm wide, whitish pubescent outside, glabrous inside, thin (less than 1 mm), with 6-9 concentric rings, not denticulate at margin; scar flat, 5 mm in diameter; stylopodium evident, with 5-6 rings; maturing first year;

Bark, twigs and
buds

bark dark pinkish-grey, smooth, with thin orangish furrows; twigs hairless, slender, grey brown, with raised lenticels looking like warty; buds ovoid, obtuse, hairy at tip, 3-6 mm long;
Hardiness zone, habitat hardy; prefers lime-free soils; rather slow-growing ;
Miscellaneous -- A. Camus : n° 40 ;
-- Sub-genus Cyclobalanopsis;
-- Section Glauca, sub-section Glaucae (Menitsky);
-- Also written "myrsinaefolia"
-- For Govaerts & Frodin (1998) it was a synonym of Q.glauca ..but later (2002) they consider there are 2 true species..
Subspecies and
varieties
_ Q.vibrayeana is probably a true species, in South Japan, different from Q.myrsinifolia in having larger, adaxially dark green, abaxially silvery leaves, with 12-15 vein pairs; hardy; all types of soils; handsome small tree with a shrubby habit;
Pictures

drawing