Showy milkwort

A. grandiflora is an herb that reaches between 25 and 50 cm (9.8 and 19.7 in) in height. The species' leaves are alternately arranged and oblanceolate to linear-oblanceolate in shape, reaching a length between 1.5 and 5 cm (0.6 and 2.0 in) and a width between 2 and 17 mm (0.08 and 0.67 in). They are pubescent underneath, most notably on the veins. The racemes range in length from 5 to 17 cm (2.0 to 6.7 in). The wings either side of the flower are pink in color and 5 to 17 mm (0.20 to 0.67 in) in length. The flower itself is similar in color but smaller in size. A. grandiflora's sepals are 1.5 to 2 mm (0.06 to 0.08 in) in length and green in color. The seeds are approximately 2 mm (0.08 in) long and black in color. A. grandiflora tends to bloom during the summer months and fruits shortly thereafter.

This species is native to the southeastern region of the United States of America. Its range encompasses North Carolina south to Florida and westward to Louisiana. Within this range it may be found in habitats such as longleaf pine sandhills, savannas, and calcareous glades. They are commonly found in mesic environments and areas with dry, sandy soils.

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