Quercus spinosa

高山櫟

Quercus spinosa A. David ex Fr.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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A. David ex Fr., Nouvelles archives du muséum d'histoire naturelle, ser. 2 7: 84. 1884. (Nouv. Arch. Mus. Hist. Nat. ser.2)

Kanehira, Formosan Trees 584. 1917. (Formos. Trees, 台灣樹木誌)

Quercus ilex L. var. spinosa (A. DC. ex Franch.) Franch

Hayata, Materials for a flora of Formosa 290. 1911. (Mat. Fl. Formos.)
Quercus spinosa A. David var. miyabei Hayata

Hayata, Icones Plantarum Formosanarum 7: 37. 1918. (Icon. Pl. Formos., 台灣植物圖譜)
Quercus semicarpifolia Smith ssp. glabra (Franch.) Handel-Mazz.

Kanehira & Hatusima, Transactions of the Natural History Society of Formosa 29: 24. 1939. (Trans. Nat. Hist. Soc. Formos., 台灣博物學會會報)
Quercus semicarpifolia Smith var. miyabei (Hayata) Ying

Ying, Cloured illustrated flora of Taiwan : Includes introduced species 3: 195. fig. 722. photo 437. 1988. (Col. Ill. Fl. Taiwan Intr. Pl., 台灣高等植物彩色圖誌含引進種)

Lu, Ou & Lu, Illustrations of Trees of Taiwan 3: 48. 1999. (Ill. Tr. Taiwan, 台灣樹木解說)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)

tree

Evergreen trees to 20 m high; trunks 0.4 m across, crooked or straight; bark dark brown to brown, rough and fissured; branches ashy-gray, glabrous, with minute lenticels; branchlets stellate-tomentose; stipules 1 pair, linear, glabrous.
Leaves elliptic, 3.7–4.3 cm long, 2–2.7 cm broad, coriaceous, obtuse or rounded at apex, rounded, obtuse or cordate at base, entire, spiny or echinate, midrib slightly convex or grooved above, elevated beneath, brown-tomentose at base, lateral veins 6–10 pairs, often forked; petioles very short-stalked, 0.3–0.5 cm long, tomentose.
Staminate flowers 3 mm long, 3 mm broad; perianth 3–5-lobed, sparsely hairy outside; stamens 5–6, filaments 2 mm long, glabrous, anthers 0.9 mm long, glabrous. Pistillate flowers 1 mm long, 2 mm broad, styles 2–4, flattened, linear, involute, stigmas pointed.
Cupules 0.6–0.8 cm long, 1–1.2 cm across, scales sparse, triangular;nuts ellipsoid, 2.2 cm long, 1–1.2 cm across, apiculate at tip, glabrous.

fruit maturing from October.

台灣 : usually in the upper watersheds in the central mountains at altitudes of 2,500–3,100 m throughout the island. This species grows at the highest altitude among the species of Quercus in Taiwan.
世界 : Distributed in Myanmar and mainland China (SE, C, SW & Xizang).