Rattlesnake Plant is a large, erect herb, forming
clumps up to 3 m tall. The unusual inflorescences are upright, shaped
like a rattlesnake's rattle, up to 25 cm long, and consist of stacked
leathery floral bracts with small, yellow or yellow-orange flowers
peeking out at the edges. The relatively modest actual flowers are
tubular and have 3 unequal petals. The flowers are followed by 1.3 cm
long, egg-shaped seed capsules containing dark blue seeds surrounded
with white flesh. The leaves are large, dark green above with paler
green along the midrib, grayish green with often purplish margins
below, ovate in shape, and pinnately-veined with parallel lateral
veins. The plants grow from underground rhizomes. Rattlesnake Plant is
native to Tropical America, cultivated as a garden plant elsewhere.