crown rust
noun
: a leaf rust of oats and other grasses that is caused by a fungus (Puccinia coronata) and is characterized by rounded light-orange uredinia and buried telia
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“Crown rust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crown%20rust. Accessed 28 Feb. 2025.
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