Salix kusanoi
水社柳
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名彙資訊
學名發表文獻
Sargent, Plantae Wilsonianae 3: 100. 1916. (Pl. Wils.)
台灣首次記錄發表文獻
同發表文獻
異名
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Salix tetrasperma auct. non Roxb.
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Salix tetrasperma Roxb. var. kusanoi Hayata
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Salix doii Hayata
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Salix suishaensis Hayata
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Salix kusanoi (Hayata) HayataHayata, General Index to the Flora of Formosa 73. 1917. (Gen. Ind. Fl. Formos., 台灣植物總名錄)
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Salix warburgii O. Seem. var. eucalyptifolia YingYing, Memoirs of the College of Agriculture, National Taiwan University 27(2): 38. fig. 13-16. 1987. (Mem. Coll. Agr. Natl. Taiwan Univ., 國立台灣大學農學院硏究報告)
各語言俗名
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中桉葉柳. 草野氏柳.
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英Kosano Willow. Shui-sheh willow.
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日すいしゃやなぎ. やつしべやなぎ. くさのやなぎ.
參考資料
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Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)
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Liu, Illustrations of native and introduced ligneous plants of Taiwan . 1961. (Ill. Nat. Intr. Lign. Pl. Taiwan, 台灣木本植物圖誌)
特徵描述
生活型
tree
形態特徵
- Trees to 8 m tall; trunk with stratified bark. Branches dark to reddish brown, glabrous, branchlets greenish to reddish brown, densely ferruginous-velutinous becoming glabrate. Buds elliptic, reddish brown, glabrous, marginal bracts overlapping, with wrin
- Leaf blades ovate to oblong-lanceolate, 7-11(-14) cm long, 2-3.5(-4.5) cm wide, apex acute-acuminate to caudate, base slightly cordate to rounded, with auriculate glands, margins glandular-serrulate, rarely entire; immature leaf blades reddish to pale green, densely sericeous on both surfaces; mature leaf blades ferruginous-velutinous becoming glabrate beneath, greenish on both surfaces, lateral veins 30-50 pairs including those not reaching margins; petioles 5-15(-20) mm long, pubescent or glabrous; stipules reduced gland-like, tawny becoming dark brown, deciduous.
- Aments precocious, 4-9 cm long, peduncles with 3-5 caducous leafy bracts. Flowers of staminate aments whorled; stamens 3-7, filaments pilose near base, 3-3.5 mm long, anthers widely ellipsoid, 0.3-0.5 mm long, 0.4-0.6 mm wide; nectaries 3-5, fused at base, cup-like, largest one adaxial; often with 2-3 lobes, sometimes pilose, others abaxial; bracts ovate to obovate, 2-3 mm long, 1.4-2 mm wide, apex obtuse to rounded, both surfaces pubescent, tip often becoming glabrate abaxially, tawny. Flowers of pistillate aments whorled aments, 3.5-5 cm long, to 10 cm long in fruit; peduncle pilose, to 2 cm long; leafy bracts deciduos, densely villose abaxially; pistils greenish, glabrous, lanceolate-conical, apex obtuse, styles 0.4 mm long, stigma double bifid, stipes glabrous, 0.8 mm long, 1/3 to 1/2 as long as bracts; nectary 1, adaxial, partly surrounding stipe, often lobed; bracts as in staminate flowers; ovules 4 per ovary.
- Capsules ovate-lanceolate. Seeds green, clavate, 1-2 mm long, with coma at base.
分布
- 台灣 : In wetlands and ponds from lowlands to mountainous areas below 1,500 m.
引證標本
TAIPEI: Campus, Kao s. n. 1955; Wufenpo, Masamune 2491. ILAN: Shemihu, Su et al. s. n. 1987; Shuanglienpei, Yang 3293*, 3294*; Tapae, Ying s. n. 1987 (Type of S. warburgii var. eucalyptifolia, NTUF!); Tsaopae, Yang 3325. NANTOU: Sun Moon Lake, Kawakami s. n. 1916 (Type of S. suishaensis Hayata, TAIF!), Sasaki s. n.* 1929. KAOHSIUNG: Chishan, Kawakami & Mori s. n. 22347; Niaosung, Masamune 3407. PINGTUNG: Nanjenshan, Yang 3129, Tungyuan, Yang s.n. 1995. HUALIEN: Shoufong, Hsieh & Tang s. n. 1988.
引用文獻
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楊國禎 K.C.Yang, C.F.Hsieh, etc.
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楊國禎 K.C.Yang, C.F.Hsieh, etc.
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