Flora of the Southeastern United States
2022 Edition


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Trichostema Linnaeus. Blue Curls.

Key to Trichostema

A genus of about 18 species, shrubs, annual and perennial herbs, of temperate North America (especially diverse in w. North America, with a second center of diversity in se. North America).

Ref: Harley et al. In Kadereit (2004); Lewis (1945); McClelland & Weakley (2019) In Weakley et al. (2019a). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map to see what it means. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Scott Ward
image of plant© Richard & Teresa Ware
image of plant© Scott Ward
image of plant© Floyd A. Griffith
image of plant© Gary P. Fleming