Oaks of the World

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  Quercus senescens
Author Hand.-Mazz. 1929 Symb. Sin. 7: 37
Synonyms ilex var. rufescens Franch. 1899 p.p.
Local names hui bei li ;
Range Yunnan ; Himalaya ; 1800 - 3300 m
Growth habit usually less than 3 m tall, but may reach 10 m;
Leaves 3.5-5 x 1.8-3 cm; subelliptic to oval; apex obtuse; base rounded or slightly cordate; margin entire, most often rolled under; sometimes toothed; adaxially with fascicled and multiradiate hairs, glabrescent; many pale grey brown hairs beneath (glandular simple uniseriate, and solitary and fascicled hairs); 6-10 vein pairs, impressed obove, at an angle of 50° with midrib; petiole 2-4 mm long, brown, tomentose;
Flowers April-May; pistillate inflorescences less than 1 cm long; male catkin 1-3 cm long, tomentose;
Fruits acorn 1 cm long, 0.8 cm in diameter; ovoid, glabrous, apiculate; 1 to 2 on a 0,5 cm long axis; enclosed 1/2 by cup; cup with triangular, grey tomentose scales; maturing in 1 year;

Bark, twigs and

young twigs densely grey brown stellate tomentose; rounded bud;
Hardiness zone, habitat hardy;
Miscellaneous -- A.Camus : tome 1, p. 383, n 89;
-- Sub-genus Cerris, Section Ilex;

Subspecies and
--- Q.muliensis Hu 1951 Acta Phytotax. Sin. 1: 147
= Q.senescens var. muliensis (Hu) Hsu & Wei Jen ex Govaerts 1998
occurs in Yunnan; it is probably a hybrid between Q.senescens and
Q.monimotricha; general habit and leaf-shape are those of Q.monimotricha, but leaf and twig tomentum is that of Q.senescens.