San Francisco Bay Area Plant Encyclopedia
- Pennisetum messiacum
- Pennisetum orientale
- Pennisetum “Red Buttons”
- Pennisetum “Rubrum”
- Penstemon ambiguus
- Penstemon Pensham “Arctic Fox”
- Penstemon azureus v. angustissimus
- Penstemon “Belle of Dawn”
- Penstemon bicolor ssp. roseus
- Penstemon “Blackbeard”
- Penstemon “Blue Springs”
- Penstemon “Cherry Sparks”
- Penstemon “Dark Towers”
- Penstemon “Diablo”
- Penstemon “Dorothy Wilson”
- Penstemon eatonii
- Penstemon “Electric Blue”
- Penstemon “Enor”
- Penstemon “Firebird”
- Penstemon “Garnet”
- Penstemon “Glitterbelle”™
- Penstemon “Holly’s White”
- Penstemon “Lavender Riding Hood”
- Penstemon “Margarita BOP”
- Penstemon “Midnight”
- Penstemon newberryi ssp. sonomensis
- Penstemon “St. Helena”
- Penstemon “Painted Lady”
- Penstemon parryi
- Penstemon “PepTalk Purple”