ACANTHACEAE

Anisacanthus quadrifidus var. wrightii

Common Name:  Flame Acanthus

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Notice that the flowers are all emerging from one side of the stem.  How many petals? Flame acanthus habit - a low, sprawling shrub
How many stamens?  If you pull open the flower, you can see that the stamens are fused to the lower lip of the corolla tube - this is called adnate fusion (fusion of unlike parts). These opposite leaves are ovate-lanceolate in shape