areas. The plant is slow to spread via seeds, does not spread by runners and tends to disappear as vegetative densities increase and habitats dry out. Although A. incarnata plants can survive for up to 20 years, most live only two-five years in gardens. The species is not shade-tolerant and is not a good vegetative competitor. See also Butterfly house (conservatory) Lepidoptera migration Peninsula Point Light, Michigan References External links Australian Museum fact sheet on monarch butterflies Mission Monarch (Canada) Monarch butterfly metamorphosis: time-lapse video (2:42 minutes) Monarch butterfly on the UF / IFAS Featured Creatures website Monarch Joint Venture – Partnering Across the U.S. to Conserve the Monarch Butterfly Migration Monarch migration maps Monarch Watch PBS Nova documentary "The Incredible Journey of the Butterflies" USGS description of monarch butterfly Monarch butterfly data at NatureServe Explorer Danaus (butterfly) Butterflies of North America Butterflies of Central America Nymphalidae of South America Insects of Hawaii Butterflies of the Caribbean Fauna of the California chaparral and woodlands Animal migration Aposematic species Butterflies of Europe Butterflies of Oceania Symbols of West Virginia Butterflies described in 1758 Endangered fauna of California Articles containing video clips Poisonous animals Symbols of Alabama Symbols of Illinois Taxa named by Carl Linnaeus Symbols of Idaho