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簇生

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Flowers usually forming loose cymes or cymose panicles, sometimes spikes or in clusters; achene without crested appendix at apex.

花通常形成松散的聚伞花序或密伞圆锥花序,穗状花序或有时在簇生里的;没有有饰章的附录在先端的瘦果。

Male flowers: cauliflorus or clustered in proximal leaf axil of one-year-old branchlets.

雄花: 老茎开花,或在一年老枝的下部的叶腋里簇生

Flowers perfect or unisexual on different plants, very small, solitary or clustered in spikes and again arranged into complex thyrsoid structures.

完全花或单性花生在不同植株,很小,单生或簇生在穗状花序并再次排列为复合体聚伞圆锥状的结构。

Culms 30–100 cm tall, 1.5–2.5 mm in diam., panicle branches clustered or verticillate; spikelets purplish at maturity

秆30-100厘米高,1.5-2.5毫米直径,圆锥花序分枝簇生或轮生;略带紫色的小穗成熟时 32 E。

Pollen cones terminal, solitary or clustered in leaf axils, or borne in spikelike complexes; individual cones pedunculate or sessile; microsporophylls numerous, spirally arranged, with distinct adaxial and abaxial surfaces; microsporangia 2; pollen 2(or 3)-saccate in Chinese species,.

雄球花单个顶生,或者在叶腋簇生,或者形成穗状复合花序;雄球花有花序梗或者无;小孢子叶许多,螺旋状排列,背腹面显著;小孢子囊2个;中国的种类的花粉2 (-3)气囊,。

Leaves variable, those on previous year's branches usually alternate, those on short branches approximate and often fascicled; petiole 1–2(–3) cm, glabrous, with 2 to 4 nectaries at apex or at base of leaf blade; leaf blade lanceolate to elliptic-lanceolate, 3–6(–9)× 1–2.5 cm, slightly pilose when young, glabrescent, base broadly cuneate to rounded, margin shallowly densely serrate, apex acute to shortly acuminate.

易变的叶,那些在通常互生的第二年分枝上,那些在短枝紧靠和通常簇生上;叶柄1-2(-3)厘米,无毛,具2在4蜜腺在先端或叶片的在基部;叶片披针形的到椭圆形披针形, 3-6(-9)* 1-2.5 浅的幼时的厘米,稍具柔毛,后脱落,基部宽楔形到圆形,边缘浓密有锯齿,先端锐尖到短渐尖。

Leaves adaxially sparsely pubescent at least on veins, abaxially areoles of veins clustered hairy or rarely glabrous

叶正面疏生短柔毛在脉上,脉簇生有毛的或很少无毛的背面小窠的至少 31

Flowers few, solitary or 2-6-fascicled in axils of leaves

很少的花,单生或2-6在叶腋簇生 6

Cladodes borne in clusters, rarely solitary, green, flat, 3-angled, or subterete.

叶状枝生于簇生,很少单生,绿色,平,具3角,或近圆柱状。

Tetrandra ; flowers solitary, fascicled, or in few-flowered racemes; infructescences simple, rarely forked, with 1(-3) drupes, rarely showing scars from fallen male flowers.

tetrandra ;花单生,簇生,或在很少花总状花序里的;果序简单,很少分岔,带有1个(-3)核果,很少显示来自脱落的雄花的痕。

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