Cestroideae (syn. Browallioideae) is a subfamily of the plant family Solanaceae, the nightshades.

It currently contains the three tribes and seven genera, as follows:

• Browallieae Hunz.
  • Browallia L.
  • Streptosolen (Benth.) Miers
• Cestreae Don
  • Cestrum L.
  • Sessea Ruiz & Pav.
  • Vestia Willd.
• Salpiglossideae (Benth.) Hunz.
  • Reyesia Gay
  • Salpiglossis Ruiz & Pav.

With the (current) exceptions of the genera Sessea and Reyesia, the subfamily furnishes many colourful garden plants of considerable horticultural merit.

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