花单生，没有小苞片的任何分枝在腋处，没有不育的花。
Flowers solitary, without any branching in axils of bracteoles, without sterile flowers.
总状花序轴和花梗具短柔毛或微柔毛；苞片和小苞片通常生于花梗上部的1/2。
Raceme rachis and pedicels pubescent or puberulent ; bract and bracteole usually borne on distal 1/2 of pedicel.
花序：4,5 - 11厘米，总状花序，因为下方的花梗较长，故形似伞房花序。花梗直立，1 -3厘米长。低位的花梗最长，每个花梗有1 - 3个小苞片。
Inflorescences: 4, 5-11 cm, racemose but appearing corymbose because of the long lower pedicels, pedicels sub-erect, 1-3 cm, the lowest the longest, each with 1-3 minute bracts.
一品红的花是非常小的，花周围五颜六色的叶子被称为苞片。这些苞片让这种植物美丽起来。
The flowers of the poinsettia are very small. Around the flowers are colorful leaves called bracts. These bracts are what give the plants their beauty.
圆锥花序稀松的分枝，通常大，具数枚到多数总状花序或小的圆锥花序的；苞片相当小。
Panicle laxly branched, usually large, with several to many racemes or smaller panicles; bracts rather small.
花序花茎20 -40厘米长，1 - 1.5厘米厚，大理石纹路，先外展，而后直立，若干苞片着生在一个小型松散莲座中，此花茎莲座较主叶面莲座小，但颜色一致；
Inflorescences 20 – 40 cm long, 1 – 1.5 cm thick, often marbled, at first spreading, later erect, bracts many in a loose rosette, smaller than in the main rosette but of the same colour;
花序花茎20 -40厘米长，1 - 1.5厘米厚，大理石纹路，先外展，而后直立，若干苞片着生在一个小型松散莲座中，此花茎莲座较主叶面莲座小，但颜色一致；
Inflorescences 20 – 40 cm long, 1 – 1.5 cm thick, often marbled, at first spreading, later erect, bracts many in a loose rosette, smaller than in the main rosette but of the same colour;
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