General data | Classifications | List of species | Local names | Back
to home page |
Quercus longispica | |
Author | (Hand.-Mazz.) A. Camus 1934 |
Synonyms | Q. semecarpifolia var. longispica
Hand.-Mazz. 1929 Q. semecarpifolia Franchet p.p. 1899 |
Local names | |
Range | China (Sichuan, Yunnan) |
Growth habit | to 25 m; |
Leaves |
5.5-8 cm x 2.5-4 cm; evergreen; coriaceous; obovate-subelliptic or subelliptic; base round; apex round or with a blunty tip; margin revolute, entire or sometimes with spiny teeth; adaxial face at first yellow-brown pubescent, then glabrous; abaxially with a yellow-brown tomentum, made of simple glandular hairs and fasciate ones, not covering the secondary veins or very slightly; 7-9 lateral veins pairs impressed above, raised underneath; stout petiole 2-4 mm long, glabrescent; |
Flowers | male catkins 5-15 cm long, to 18cm (average length : 12 cm) |
Fruits | acorn ovoid or globose, 1.5 cm maximum in diameter, in raised spikes on a 5-16 infrutescence, bearing to 20 fruits; cup with short, hairy at margin, lanceolate, to 4 mm long scales; wall cup 1 mm thick; acorn enclosed variably in the cup; maturation biannual; |
Bark, twigs and |
bark grey-brown, strongly fissured; young twigs at first covered with pale brown hairs, then glabrous. |
Hardiness zone, habitat | hardy zone 7; |
Miscellaneous |
-- Sub-genus Cerris, section Ilex; |
Subspecies and varieties |
|
Pictures |