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The desert indigo sage (Salvia arizonica) belongs to Lamiaceae (the Mint family). It is a perennial herb that is native to Arizona, New Mexico, and Texas in the southwestern United States. This herb grows in rich, moist soils, in forests at higher elevations 2100-2900 m, and up to a height of 45-60 cm. The leaves are opposite, glabrous on both sides, deltate-ovate, with small, rounded teethed margins. The indigo blue flowers bloom in interrupted spikes or terminal stems from July to September. The corolla is 2-lipped with the upper lip helment-shaped, entire or 2-lobed, the lower lip spreading or drooping and 3-lobed.
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