Marshallia Schreber. Common name: Marshallia, Barbara's-buttons.
A genus of about 11-13 species, perennial herbs, of the se. United States. Marshallia ranges from sc. VA, sw. PA, WV, s. KY, s. MO, and c. OK, south to c. peninsular FL, and wc. TX.
ID notes: The heads are discoid but uniquely so: the corolla lobes linear to linear-oblong and often twisted and somewhat appressed, arising from long funnelform disc tubes conspicuously protruding beyond the pales of the receptacle. Still, these differ than species with only ligulate florets, which have corolla lobes flattened or strap-like.
References: Beadle & Boynton (1901); Channell (1957); Cronquist (1980); Kelley (2024a); Knapp, Poindexter, & Weakley (2020); Watson (2006) In Flora of North America Editorial Committee (2006c); Watson & Estes (1990); Watson, Elisens, & Estes (1991); Watson, Jansen, & Estes (1991); Weakley & Poindexter (2012). Show full citations.
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.
© Alan Cressler: Marshallia obovata var. obovata, Coosa Valley Prairies, Floyd County, Georgia 1 by Alan Cressler | Marshallia obovata var. obovata source | Original Image ⭷
© Scott Ward | Marshallia obovata var. scaposa | Original Image ⭷
© Floyd A. Griffith | Marshallia ramosa | Original Image ⭷
© Gary P. Fleming | Marshallia legrandii | Original Image ⭷
© Scott Ward | Marshallia mohrii | Original Image ⭷
© Scott Ward | Marshallia mohrii | Original Image ⭷Feedback
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