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Heal-all (a.k.a., self-heal) is a native species superficially similar to ground ivy (Glechoma hederacea) or early-season henbit (Lamium amplexicaule). Heal-all has the characteristics of other low-growing plants in the mint family — an upright, four-angled stem, with lines of hairs along the ridges, 1' tall or less, with a short (1-2") spike of flowers at the apex — and is thus easy to overlook. But the tiny (1/2" long), tubular, two lipped flowers are distinctive (and charming). The light purple or blue upper lip is bent at right angles to form a hood over the aperture with the four stamens and single style with a bifurcated stigma at its tip curving along inside of the hood. The lower lip is divided into three lobes, the middle one white and fringed; the two smaller lateral lobes are the same color as the hood. The hood of the upper lip also sports a "mohawk" haircut of relatively long hairs along the crest of the hood. The flower calyx is light green or reddish, hairy along the edges. After fertilization, four tiny, brown, finely-ridged nutlets develop within the persistant calyx; the seeds are reported to be dispersed by a mechanism that uses the energy in raindrops impacting the calyx to fling the seeds away from the mother plant. The leaves are opposite, up to 2" long and half as wide with a short petiole; they are egg- or lance-shaped with a central vein that is hairy on the underside. Heal-all prefers moist habitats with a history of disturbance.

Prunella

Prunella vulgaris

heal-all [Blooms: Jun-Aug]