黑蒴属（学名：Alectra）是玄参科下的一个属，为粗糙草本植物。该属共有25种，分布于热带地区。

Melasma (also known as Chloasma faciei, or the mask of pregnancy when present in pregnant women) is a tan or dark skin discoloration. Although it can affect anyone, melasma is particularly common in women, especially pregnant women and those who are taking oral or patch contraceptives or hormone replacement therapy (HRT) medications.