filaments shorter than perianth segments, connate at base and adnate to perianth segments;

1、

filaments adnate to base of limb, subulate, base broadened with ascending projections;

花丝贴生于冠檐基部，钻形，基部扩大具上升的预测；

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2、

leaves basal; stipules adnate to petioles only at base, free part lanceolate, margin fimbriate or erose;

叶基生托叶贴生于叶柄只在基部，披针形的离生部分，流苏状或者啮蚀状的边缘；

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3、

filaments filiform, smooth or verrucose, proximally adnate to perianth for most of their length;

花丝丝状，平滑的或瘤状，下部贴生于花被达大多数其长度；

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4、

filaments slightly longer than perianth segments, connate at base and adnate to perianth segments;

花丝稍长于花被片，在基部合生和贴生于花被片；

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5、

stipules mostly adnate to petiole, free parts broadly ovate, abaxially pubescent, margin glandular serrate, apex acuminate;

大多为的托叶贴生于叶柄，离生部分宽卵形，背面具短柔毛，边具腺锯齿，先端渐尖；

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6、

anther connective enlarged, often elongated, the cae adnate to thickened connectives;

扩大的药隔的花药，通常拉长，囊贴生于加厚的药隔；

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7、

stipules caducous, free or with base adnate to petiole, lanceolate, glandular serrate, apex acuminate;

托叶早落，或者用基础贴生于叶柄免费，披针形，具腺锯齿，先端渐尖；

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8、

filaments equal, equaling to slightly longer than perianth segments, connate at base and adnate to perianth segments;

花丝等长，等于稍长于花被片，在基部合生和贴生于花被片；

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9、

filaments proximally adnate to perianth tube, free part filiform or flattened, short to long, smooth, papillose or hairy;

花丝下部贴生于花被筒，离生部分丝状或扁平的，短到长，平滑，具小乳突的或有毛的；

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10、

stipules mostly adnate to petiole, free parts lanceolate, margin entire, glandular-pubescent, apex acute;

托叶主要贴生于叶柄，披针形的离生部分，边缘全缘，腺状短柔毛，先端锐尖；

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11、

stipules mostly adnate to petiole, free parts lanceolate, glabrous, margin glandular, apex acuminate;

托叶主要贴生于叶柄，披针形，无毛的离生部分，腺的空白边，先端渐尖；

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12、

stipules mostly adnate to petiole, free parts very short, triangular, sometimes glandular, margin entire, apex acute;

大多为的托叶贴生于叶柄，离生部分非常短，三角形，有时腺，边缘全缘，先端锐尖；

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13、

stipules narrow, mostly adnate to petiole, apical free parts lanceolate, margin glandular serrate, apex acuminate;

狭窄的托叶，贴生于叶柄，披针形的顶端离生部分，边具腺锯齿，先端渐尖的主要；

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14、

stipules large, mostly adnate to petiole, free parts ovate, glabrous, margin glandular serrate, apex shortly acuminate;

大的托叶，贴生于叶柄，卵形，无毛的离生部分的主要，边具腺锯齿，先端短渐尖；

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15、

stipules mostly adnate to petiole, free parts auriculate, margin entire, glandular-pubescent, apex acuminate;

大多为的托叶贴生于叶柄，离生部分耳形，边缘全缘，腺状短柔毛，先端渐尖；

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16、

stipules mostly adnate to petiole, free parts lanceolate, both surfaces pubescent, margin glandular, apex acuminate;

托叶主要贴生于叶柄，披针形的离生部分，两面具短柔毛，腺的空白边，先端渐尖；

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17、

stipules adnate to petiole, free parts oblong-lanceolate, glabrous, margin entire or sparsely crenate and glandular, apex acuminate;

托叶贴生于叶柄，离生部分长圆状披针形，无毛，边缘全缘或者稀少具圆齿和腺，先端渐尖；

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18、

female flowers subtended by a small, entire bract, adnate to bracteoles and virtually submerged in wing complex;

雌花以一小，全缘苞片，贴生于小苞片和沉水的在翅复合体的实际上被包着；

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19、

stipules pectinate, mostly adnate to petiole, both surfaces and margin sparsely pubescent, densely glandular-pubescent;

托叶栉状，贴生于叶柄的主要，两面和青春期的边缘疏生，浓密腺状短柔毛；

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20、

filaments equal, slightly shorter to slightly longer than perianth segments, connate and adnate to perianth segments, base triangular;

花丝等长，稍短到长于花被片，合生和贴生于花被片，三角形的基部；

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