firecracker penstemon

COLUMBIA, Mo. — Flowering stems of firecracker penstemon pop with color and add a burst of red flowers to landscapes in summer. Firecracker penstemon (Penstemon eatonii) is just one of about 270 species of penstemon, also known as beardtongue. “Its showy stamens protrude from the flower and resemble a hairy tongue,” said Michele Warmund, University…