A twining plant. Stems fifteen to twenty feet long, numerous and smooth; leaves alternate, arrow-shaped, smooth, and on long petioles; flowers an inch or more in length, funnel-shaped, pale yellow, axillary; sepals five, obovate; bracts awl shaped; stamens and styles shorter than the corolla. The roots are perennial, two or more inches in diameter at the top, tapering, three or four feet long, brownish without, whitish within, with an acrid milky juice, succulent.
Health Remedies 
Return to top