生活型

shrub

形態特徵

• Low shrubs, decumbent or repent, 15-50 cm tall, few branched. Branches dark brown, sometimes white farinose; branchlets greenish to reddish brown, glabrous, thick. Buds glabrous, yellowish to reddish brown; bud scales fused, calyptrate or cap-like, spliti
• Buds glabrous, yellowish to reddish brown; bud scales fused, calyptrate or cap-like, spliting open on adaxial face. Leaf blades obovate to obovate-elliptic, larger ones 6-10 cm long, 3-5 cm wide, acute to rounded, base broadly cuneate, margins glandular-serrulate; immature leaf blades long sericeous beneath, soon glabrate; mature leaf blades thick herbaceous, often glaucous beneath, glabrous, lateral veins 12-16 pairs; petioles yellowish to brown, 7-14 mm long, sometimes with glandular processes at distal end; stipules small, linear, sometimes glandlike, deciduous or undeveloped.
• Aments precocious, more or less pendulous, leafy bracts 2-3, green. Staminate aments 2, filaments glabrous or pilose near base, 5-8 mm long, anthers 2-celled, unequal, ca. 1 mm long, 0.5 mm wide; nectary 1, adaxial, square; bracts pale tawny, obovate, 2.5-3 mm long, densely villous with long hairs on both sides. Pistillate aments 2.5-3 cm long, elongating in fruit; pistils pubescent with white hairs, pyriform, 3 mm long; stigma double bifid or bifid with or without a short style, stipules as long as bracts, much longer in fruit; nectary 1, rectangular to short clavate, to 0.8 mm long; bracts as in staminate flowers; ovules 20 or 21 per ovary.
• Capsules ovoid, long stipulate.Seeds green, clavate, 1-2 mm long, with coma at base.

分布

• 台灣 : On wet cliffs, ca. 2,900 m, very rare.

引證標本

HSINCHU: Hsinda shelter, Yang 3113. KAOHSIUNG: Kuanshanling, Yang 3029*, 3094*.

引用文獻

• YANG, KUOH-CHENG and HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 2: 36. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)