Young stems terete to frequently 4-angled or subalate, glabrous, puberulous, pubescent, or tomentose, often glabrescent.
嫩茎圆柱状到经常地四棱形或略似翼
，无
，被微
，
，或被绒，通常后脱落。
,圆柱状Young stems terete to frequently 4-angled or subalate, glabrous, puberulous, pubescent, or tomentose, often glabrescent.
嫩茎圆柱状到经常地四棱形或略似翼，无，被微，，或被绒，通常后脱落。
Fruit indehiscent or tardily dehiscent, often lomentaceous siliques, breaking transversely into 1(or 2)-seeded units, linear or oblong, terete, sessile;
缓慢开裂果不裂或，通常长角果，进1横向弄断(或2种子单位，线形或长圆形，，无梗；
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