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Definition of Blue star
1. Noun. Subshrubs of southeastern United States forming slow-growing clumps and having blue flowers in short terminal cymes.
Exact synonyms: Amsonia Tabernaemontana
Group relationships: Amsonia, Genus Amsonia
Generic synonyms: Subshrub, Suffrutex
Group relationships: Amsonia, Genus Amsonia
Generic synonyms: Subshrub, Suffrutex