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False Pennyroyal (Isanthus brachiatus) |
Color Photograph: © by and courtesy of Darel Hess, Vanderbuilt University
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Hyssopus officinalis False Pennyroyal might be confused with Hyssop. However the flowers of Hyssop have a far more complicated structure including a stalked, heavily bilobed lower petal lobe. The foliage of Hyssop does not feel clammy and the flowers are not on stalks in the leaf axils. False Pennyroyal (Isanthus brachiatus) Identification: Flowers small, blue to light blue. Flower structure simple, with 5 distinct, unmodified petal lobes. Pistil protruding from the end of the corolla. Calyx teeth elongate, pronounced. Flowers located on stalks in the upper leaf axils. Stem square. Foliage with a clammy feeling. Leaves elongate, narrow, sessile to the stem, with a toothless outer margin. Plant 6 to 20 inches in the height. Distribution: Throughout eastern North America and the Plains States. Habitat: False Pennyroyal is found in a variety of dry soil habitats. Flowering period: July to September. |
False Pennyroyal (Isanthus brachiatus)
Similar Species: Hyssop (Hyssopus officinalis)
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Similar Species |
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