Scutellaria parvula Michx.
Habitat: Sandy or gravelly soil, woods, ledges, mostly calcareous.
Range: Quebec and Maine west to Manitoba, south to Florida and Texas.
Aids to Identification: Leonard's skullcap has opposite, sessile leaves and bluish bi-lipped flowers borne in the axils of the leaves. The stem and leaves are glandular-pubescent. The rhizome produces tubers. The plant does not have a fragrance. This is the only skullcap in Maine that produces tubers and has glandular-pubescent stem and leaves.
Ecological characteristics: Maine has two varieties of Scutellaria parvula: var. missouriensis and var. parvula. Both are rare. A few historic locations have been in moist soils along rivers.
Phenology: Flowering May through July
Synonyms: None noted.
Known Distribution in Maine: This rare plant has historically been documented from a total of 4 towns in the following counties: Aroostook, Piscataquis, York
Dates of documented observations are: 1895, 1896, 1888, 1942
Reason(s) for rarity: At northern limit of range, not rare southward.
Conservation considerations: Unknown. It has not been seen recently.