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耳垂竹 |
中文名:耳垂竹 拉丁学名:Schizostachyum auriculatum Q. H. Dai & D. Y. Huang 别 名:大虱子草 界:植物界 |
耳垂竹(ěr chuí zhú),学名:Schizostachyum auriculatum Q. H. Dai & D. Y. Huang,是禾本科、簩竹属灌木或乔木状竹类,秆直立或近直立,在10-14米,3-5厘米直径; 节间圆柱状,直,70-90厘米,粗糙,±白色粉状,最初白色贴伏具糙硬毛; 壁分枝3-5毫米约落叶,白色粉状,硬浅黄有毛的竿箨50 厘米,具缘毛的边缘白色;产于广西(南宁)。 [1]
形态特征
秆直立或近直立,在10-14米,3-5厘米直径; 节间圆柱状,直,70-90厘米,粗糙,±白色粉状,最初白色贴伏具糙硬毛; 壁分枝3-5毫米约落叶,白色粉状,硬浅黄有毛的竿箨50 厘米,具缘毛的边缘白色;外部边缘通常具一明显的近环形扩大在连结点,先端截形下面的基部; 叶耳无; 口头的刚毛很多,1.5-2厘米; 叶舌约1毫米,具紧密的fimbriae 1.5-2毫米; 叶片反折,狭披针形, 14-18 * 1-1.5 厘米,背面贴伏,白色具短硬毛,白色具糙伏毛。 每末级的分枝叶5-8; 鞘7-10厘米,白色; 叶耳无; 口头的刚毛多数,直立,直,对1厘米; 叶舌约0.5毫米,白色的纤毛虫; 叶片狭披针形, 20-25 * 2-3 厘米,背面的白色短柔毛,侧脉6-8 对。 花序未知。 新嫩枝6月9月。
FOC >> Vol.22 (2006) >> Poaceae >> Schizostachyum | eFloras.org Link 7.Schizostachyum auriculatum Q. H. Dai & D. Y. Huang耳垂竹 er chui zhu
Culms erect or suberect, to 10–14 m, 3–5 cm in diam.; internodes terete, straight, 70–90 cm, scabrous, ± white powdery, initially white appressed hispid; wall 3–5 mm. Branches ca. 50 cm.
Culm sheaths deciduous, white powdery, stiffly pale yellow hairy, margin white ciliate; base of outer margin usually with a conspicuous subcircular expansion below point of attachment, apex truncate; auricles absent; oral setae many, 1.5–2 cm;
ligule ca. 1 mm, with dense fimbriae 1.5–2 mm; blade reflexed, narrowly lanceolate, 14–18 × 1–1.5 cm, abaxially appressed, white hispidulous, adaxially white strigose. Leaves 5–8 per ultimate branch; sheaths 7–10 cm, white strigose; auricles absent;
oral setae numerous, erect, straight, to 1 cm; ligule ca. 0.5 mm, white ciliate; blade narrowly lanceolate, 20–25 × 2–3 cm, abaxially white pubescent, lateral veins 6–8 pairs. Inflorescence unknown. New shoots Jun–Sep.
产地生境
- Cultivated. Guangxi (Nanning).