This species is partly parasitic, absorbing part of its nourishment from the roots of other plants with which its own roots come in contact. The lovely large, yellow, deeply tubed flowers are very showy, and blossom during July and August in dry, open woods and thickets. It is a downy, grayish perennial, growing from two to four feet high, and is leafy and usually unbranched. The square, hollow stalk is quite brittle, and when fully flowered, it often assumes a slanting position, due, probably, to its top-heaviness, and on account of the buds and blossoms flaring to one side. The thick, velvety, yellow-green leaves are borne in opposite pairs, which are set alternately upon the stalk with short, purple-stained stems. They are generally oblong or lance-shaped, with a tapering tip, and are narrowed at the base, with their entire margins tinged with purple. The lower leaves are sometimes irregularly lobed and toothed, or wavy-edged, and the upper ones are much smaller and clasping. The prominent midrib is stained with purple. The pale yellow flowers are funnel-shaped, with five rounded, spreading lobes, which are fulled in the centre, forming curled edges. The two upper lobes curve forward, and the three lower ones curve backward. The texture is finely wrinkled and veined. The four yellow stamens - two long and two short -together with the inner surface of the corolla tube, are covered with fine hairs. The tips of the stamens have a pair of sharp points on the lower side. The pistil is green. The five-parted, woolly green, bell-shaped calyx has recurving tips. The bud is noticeably round on the top, and is very glossy. They are tinted with green. The beautiful flowers are crowded on the stalk in a lovely terminal, leafy spike, several blooming at the same time. This Foxglove is found from Maine to Ontario, Wisconsin, and Iowa, south to New York, Georgia and Mississippi.
DOWNY FALSE FOXGLOVE. Gerardia flava.