branchlets yellow or pale brown-yellow, turning gray or dull gray, initially with dense glandular hairs, later puberulent;

1、

filament tube included within corolla, glabrous or puberulent;

花丝筒部藏于花冠内，无毛或具微柔毛；

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2、

culm sheaths purple-green, about as long as internodes, glabrous or puberulent at base, margins ciliate;

竿箨紫色绿色，关于节间倍于，无毛或具微柔毛在基部，边缘具缘毛；

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3、

leaf sheath scabrous and puberulent on lower leaves, glabrous and slightly inflated on upper leaves;

粗糙和被微柔毛的叶鞘在下部叶子，无毛和稍膨大在上部叶片上；

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4、

pedicel bearing a bract and bracteole toward either base or apex, pubescent, puberulent, or glabrous;

花梗向基部或先端生苞片和小苞片，短柔毛，被微柔毛，或无毛；

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5、

stipules linear-subulate, ca. equal to petioles, puberulent, persistent;

钻形托叶线形，近等长于叶柄，被微柔毛，持久；

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6、

branchlets opposite or subopposite, rarely alternate, silvery-gray or gray-brown, puberulent, glabrescent, terminating in a spine;

小枝对生或近对生，很少互生，银灰色或者灰棕色，被微柔毛，后脱落，顶生一刺；

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7、

auricles ascending, purple-green, falcate, puberulent;

叶耳上升，紫色绿色，镰刀形，被微柔毛；

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8、

branchlets brown or gray-brown, slender, longitudinally ridged and sulcate, puberulent or glabrescent, lenticels absent;

棕色的小枝或者灰棕色，纤巧，纵向脊和具槽，被微柔毛或脱落无毛，缺席的皮孔；

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9、

stem spreading puberulent, sometimes also with spreading, glandular hairs;

平展被微柔毛的茎，平展的具，腺毛的有时也；

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10、

leaf blade densely puberulent, leathery, lanceolate to narrowly lanceolate;

密被微柔毛，革质的叶片，披针形到狭披针形；

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11、

corolla white, reddish, or purple, zygomorphic, inside sparsely puberulent below abaxial lip or with lines of hairs;

花冠白色，带红色，或紫色，左右对称，内部疏生在下面背面唇或具线的毛；

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12、

corolla white, inside blackish near mouth, outside sparsely white puberulent, inside with small scales;

花冠白色，在微黑接近口部，白色被微柔毛的外面疏生里面，内部具小鳞片；

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13、

current year's branchlets castaneous or purple-brown, sparsely puberulent or glabrescent, longitudinally angular, with pale lenticels;

栗色的当年小枝或紫色棕色，疏生微柔毛或，具纵棱，具浅皮孔；

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14、

petiole, peduncle, pedicel, and calyx glandular puberulent or pubescent and purple glandular;

叶柄，花序梗，，以及和紫色具腺的被微柔毛的具腺的花萼或短柔毛；

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15、

corolla pale purple, lobes with purple central stripe and apical band, zygomorphic, inside puberulent, nearly salverform;

花冠浅紫色，裂片具紫色中心条纹和顶端条纹状，左右对称，在里面，近高脚碟状；

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16、

corolla blue to reddish or white, zygomorphic, inside sparsely puberulent centrally or with a ring of hairs;

蓝色的花冠到带红色或白色，左右对称，被微柔毛的内部疏生中心或具戒指的毛；

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17、

corolla purple to reddish, white, or yellow, zygomorphic, inside glabrous, sometimes sparsely puberulent or sparsely glandular puberulent;

花冠紫色到带红色，白色，或黄色，左右对称，里面无毛，被微柔毛的疏生微柔毛的或疏生腺体的有时；

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18、

rachis densely retrorsely or spreading puberulent, often mixed with a few yellow, glandular hairs;

轴浓密反曲或开展的被微柔毛的，经常混合与一些黄，腺毛；

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19、

fruiting pedicels erect or ascending, (1. 5-)2-10(-20) mm, puberulent adaxially, glabrous abaxially.

果梗直立或上升，（1.5-）2-10（-20）毫米，正面被微柔毛，无毛背面。

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20、

capsule pyriform or oblong-pyriform, 5-angled, 2. 5-3. 5(-5) cm, densely brownish puberulent.

梨形蒴果梨形的或长圆形，具5个角，2.5-3.5（-5）厘米，密被带褐色被微柔毛。

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