Welcome to the Milkweeds of the National Park Service

Monarch butterfly (Danaus plexippus) populations are dwindling due to habitat loss. This loss is correlated to declining availability of the single-most important larval food plant for the monarch butterfly, milkweeds (Asclepias spp.). The National Park Service (NPS) is seeking volunteers to help with an important project supporting the restoration of monarch butterfly habitat in the national parks. The Milkweeds of the National Park Service is asking participants to enter data into iNaturalist to help NPS botanists and resource managers understand the distribution of milkweeds on NPS lands.

Anyone can participate by visiting to download the app and/or start uploading observations of milkweeds in any NPS unit. Be sure to join our project on iNaturalist, The Milkweeds of the National Park Service, to add your observations. Public assistance is critical to our success because it helps NPS researchers locate potential populations for sampling. Help us ...more ↓

Posted on July 18, 2015 10:36 PM by stbuckley stbuckley | 2 comments | Leave a comment

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This project is an effort to identify and catalog the milkweeds (Asclepias spp.) found in national park units throughout the United States. This project is an effort to identify locations in the parks where milkweeds are observed to assist resource managers in collecting seed for propagation and monitoring populations to ensure sufficient larval resources for monarch butterflies.

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Mini stbuckley created this project on May 01, 2015

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