General: Bridge Penstemon (Penstemon rostriflorus) is a perennial forb (subshrub) with opposite, lanceolate leaves and stalks that hold aloft red, tubular flowers. Cauline leaf blades not linear, margins entire. Flowers red, tubular, with five petal lobes. Two lobes form a hood above the stigma and stamens, two lobes form wings to the side, and the last lobe folds down below the tube (often 90-degree angle). As such, four lobes point forward, while one hangs down. Staminodes exserted. Anthers open at the tip.

Bridge Penstemon is an uncommon component of vegetation communities in dry, well-drained gravelly areas in the lower mountains in the Upper Sonoran (Mojave Desert Scrub and Pinyon-Juniper Woodland), Transition (Yellow Pine Forest), and Canadian (Pine-Fir Forest) life zones.

Around Las Vegas, look for Bridge Penstemon in the mountains, for example Mt. Charleston and peaks in Basin and Range National Monument.

Family: Figwort (Scrophulariaceae). Also called Bridges' Penstemon.