Oaks of the World

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 Quercus senescens
AuthorHand.-Mazz. 1929
Synonymsilex var. rufescens Franch. 1899 p.p.
Local nameshui bei li ;
RangeYunnan ; Himalaya ; 1800 - 3300 m
Growth habitusually less than 3 m tall, but may reach 10 m;
Leaves 3.5-5 x 1.8-3 cm; long-elliptic; 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; petiole 2-4 mm long, brown, tomentose;
FlowersApril-May; pistillate inflorescences less than 3 cm long;
Fruitsacorn 1.5 cm long, 0.8 cm in diameter; ovoid; enclosed 1/2 by cup; cup with triangular, grey tomentose scales; maturing in 1 year;

Bark, twigs and
buds

young twigs densely grey brown stellate tomentose;
Hardiness zone, habitathardy;
Miscellaneous -- A.Camus : n 89;
-- Belongs to the Ilex Group, according to Denk & Grimm 2010;
Subspecies and
varieties
--- Q.muliensis Hu 1951
= 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.
Pictures

drawing