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Trachelium caeruleum

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Trachelium caeruleum (common name blue throatwort) is a species of flowering plant in the family Campanulaceae native to the Mediterranean, where its native range includes Algeria, Morocco, Portugal, Spain, and Sicily.<ref name=grin>Template:GRIN</ref> It has also become naturalized in a few areas, including New Zealand, the Azores, and parts of mainland Europe.<ref name=grin/>

Growing to Template:Convert tall by Template:Convert wide, it is a woody-based erect herbaceous perennial, with oval leaves and dense cushions of violet-purple flowers in summer.<ref name=RHSAZ>Template:Cite book</ref> The specific epithet caeruleum means "dark blue".<ref name=RHSLG>Template:Cite book</ref>

In temperate climates this plant is usually grown as a half-hardy annual for summer bedding schemes or planters. It has gained the Royal Horticultural Society's Award of Garden Merit.<ref>Template:Cite web</ref> There are many cultivars with a variety of flower colors, including white, red, pink, and dark purple.<ref>Liang, R. and B. K. Harbaugh. (2001). Evaluation of Trachelium cultivars as cut flowers. HortTechnology 11(2), 316-18.</ref>

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