Phyllostachys makinoi Hayata

The flowering branchlets of this species are indicated as capitate in Fl. Taiwan (5: 729, pl. 1492–10. 1978), but as spicate in Fl. Ill. Pl. Prim. Sin. Gram. (103, f. 72. 1959). From the combination of characters of culms and culm sheaths it is suspected that the flowering branchlets of this bamboo are most likely to be spicate.

The tough, compact culms are used for building and for making paper, furniture, umbrellas, containers, and agricultural implements.

Culms 10–20 m, 3–8 cm in diam.; internodes to 40 cm, initially thinly white powdery, glabrous, with minute holes or crystalline spots (visible under 10 × lens); wall to 1 cm thick; nodal ridge as prominent as sheath scar or slightly more so. Culm sheaths cream-colored, sometimes brown or green-brown, with dense variably sized spots, thinly white powdery or glossy, glabrous; auricles and oral setae not developed; ligule dark purple, truncate or weakly arched, fringed with long purple cilia; blade reflexed, green, with orange or green-yellow margins, narrowly triangular or linear, flat or weakly crinkled. Leaves 2 or 3 per ultimate branch; sheath glabrous; auricles and oral setae usually present; ligule arcuate, commonly eroded, purple-red ciliate; blade 8–14 × 1.5–2 cm, abaxially initially pubescent especially near petiole. Inflorescence not known. New shoots May–Jun. 2n = 48*.

Fujian, Taiwan [introduced in Japan].

* Open forests; below 1500 m.

Phyllostachys makinoi là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Hayata miêu tả khoa học đầu tiên năm 1915.

台灣桂竹（学名：Phyllostachys makinoi），禾本科毛竹屬。分布於台灣中北部海拔100~1500公尺地區的散生竹種，中國之閩浙江亦產。桿高達10m，直徑3~10cm，節間長12~40公分，光滑，壁後約5mm。節有兩個明顯的環，上環起較高，表皮堅硬。籜葉披針形，先端略尖。幼桿呈粉綠色，後變深綠，一旦年老則轉變為棕綠色；地下莖多為實心，根莖橫走繁生。

竹桿表皮堅硬，桿肉厚0.4~1公分，在各類竹材中抗彎強度最大，最適劈成竹篾製作竹編器具，早年在台灣被用來製成米籃、畚箕、魚簍等生活必需品。而且桂竹用途甚廣，還可以當作包管家具的材料，筍亦可食用。加上繁殖迅速，覆蓋面積頗廣，長年是台灣的重要經濟作物。