General: Jaeger's Mousetail (Ivesia jaegeri) is a perennial forb that grows in tufted clump of glandular foliage hanging from the side of a cliff. The leaves and thin, naked stems hang from their purchase on steep cliffs. Each leaf is a strip of oval-shaped green leaflets (odd-1-pinnately compound). Flowers have five green triangular sepals offset to five narrow yellow petals. There are about twenty stamens and a few pistils.

Jaeger's Mousetail is a rare component of limestone cliffside vegetation communities in the lower mountains in the Upper Sonoran (Pinyon-Juniper Woodland), Transition (Yellow Pine Forest), and Canadian (Pine-Fir Forest) life zones. Jaeger's Mousetail is a sensitive species, as it occurs only in the Spring and Clark mountains.

Around Las Vegas, look for Jaeger's Mousetail on Mt. Charleston along the Pack Rat Trail and the Fletcher Canyon Trail.

Family: Rose (Rosaceae). Also called Jaeger's ivesia.