Contemporary Circumscription Compared with A Utah Flora 4th ed.
Bio430
Lamiaceae•Labiatae
No differences.
Key Features
Square stems, opposite leaves, zygomorphic corollas, and a fruit of four nutlets (compare and contrast with Boraginaceae and Scrophulariaceae).
Agastache flower, side view
Agastache flower front view
Maturing Agastache fruit - of four nutlets.
Salvia
In Salvia, the filament is short with an elongate connective between anther sacs, the lower sacs are abortive
Salvia stem
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Salvia - deeply four lobed ovary (2 carpels) with a gynobasic style
Salvia - tweezers holding short filament, with long connective; anther sac on left has aborted
Nepeta - catnip.
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Verticilate clusters of flowers from an Argentine mint
Basil - culinary herb
basil
Basil - fruits; the calyx on the left has been partially removed to more clearly show the nutlets
Salvia farinosa - half of the calyx was removed to reveal the nutlets (the calyx seals along its opening after the corolla is shed)
Salvia gregii - corolla removed with half of calyx to reveal 4 lobed ovary with a protruding, lateral nectary at base
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