A study to determine whether or not the relatively high radioactivity of a natural area has produced detectable morphological effects on plants of the species Penstemon virens, a plant of rather ...

Penstemon, also known as beardtongue (because one of its five stamens is infertile and looks different than the others, resembling a hairy tongue surrounded by a lip-shaped flower), is a perennial ...

VAIL — Betty Ford Alpine Gardens has partnered with Bureau of Land Management to grow and reintroduce one of the rarest plants in North America — the Penstemon debilis — onto the Roan Plateau near ...

When I moved to Grass Valley in 1992, I bought a house, which was surrounded by two acres of old overgrown manzanita. A fire trap to be sure. After hiring a brush-clearing firm, I was left with an ...

Betty Ford Alpine Gardens has partnered with the Bureau of Land Management to grow and reintroduce one of the rarest plants in North America — the Penstemon debilis — in the Roan Plateau area near ...

Penstemons have been valued for centuries, but it's only in recent decades that they've become more widely planted in Iowa gardens. Their common name is beardtongues because of the often-hairy stamen ...

Many people grow Gulf Coast penstemon for its showy lavender flowers in the spring. Some choose it as an alternative ground cover in part-sun location because of its evergreen foliage and prolific ...