USA NPN National Phenology Network

Taking the Pulse of Our Planet

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USA National Phenology Network

The USA-NPN brings together citizen scientists, government agencies, non-profit groups, educators and students of all ages to monitor the impacts of climate change on plants and animals in the United States.
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August 8th, 2019

Buffelgrass (Pennisetum ciliare) is an invasive plant that impacts native desert plant and animal communities in the Southwestern US. It creates substantial fire risk in ecosystems that are not adapted to large-scale intense burning. This summer, the USA-NPN developed a Pheno Forecast, our first for an invasive plant, to predict when buffelgrass reaches a level of greenness where herbicide treatment is most effective. These maps are based on known precipitation thresholds and predict green-up one to two weeks in the future. We invite managers and community members to report their sightings of buffelgrass and the level of greenness at Learn more about other the USA-NPN's other Pheno Forecasts.

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