About Lobelia purpurascens R.Br.
Lobelia purpurascens R.Br. is a small, smooth herb that typically grows less than 12 cm (4.7 in) in height. It has ascending or mostly prostrate stems, which are usually about 30 cm (12 in) long, and white rhizomes. Its leaves are arranged alternately, are mostly sessile, and range in shape from elliptic to oval. They measure 10โ25 mm (0.39โ0.98 in) long and 5โ10 mm (0.20โ0.39 in) wide, have toothed margins, and usually have a purplish undersurface. Each leaf is borne on a petiole up to 2 mm (0.079 in) long. Single flowers grow in the leaf axils on pedicels 1โ7 cm (0.39โ2.76 in) long. The corolla is pale mauve-pink, bluish, or white, and measures 8โ10 mm (0.31โ0.39 in) long. The lower petals are oblong-rounded; the smaller upper petals are upright, taper to a point, and curve inward. Flowering occurs from November to May. The fruit is smooth, measuring 3โ10 mm (0.12โ0.39 in) long and 3โ6 mm (0.12โ0.24 in) wide. This species, commonly called white root, grows mostly in shady, moist locations in woodland and grassland habitats, and is found in New South Wales, Queensland, and Victoria.