A. constricta may refer to:
- Aaadonta constricta, a land snail species endemic to Palau
- Acacia constricta, the whitethorn acacia, a shrub species native to Mexico and the southwestern United States
- Alstonia constricta, the quinine bush or bitterbark, a shrub species endemic to Australia
This disambiguation page lists articles associated with the same abbreviated species scientific name.
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