Glandularia bipinnatifida var. bipinnatifida
Glandularia bipinnatifida (Nutt.) Nutt. var. bipinnatifida
Verbena bipinnatifida Nutt.
Verbena demareei Moldenke
Dakota Mock Vervain
Dakota verbena is native to the American southwest. It appears in fields, grasses, and scrublands.
Plants: Plants are annuals or short-lived perennials, 4-16" (10-40 cm) tall. They are variable, sometimes low and matted, sometimes taller. They may cover wide expanses of ground. Stems are branched and ribbed, and purple or green; and both stems and leaves are hairy.
Leaves: Opposite, twice pinnate, thick, dark or gray green, hairy, up to 2½" (6.3 cm) long. (Technically the leaves are pinnatifid, that is, the divisions don’t reach all the way to midveins.) Leaves are rolled under, and have deep veins.
Flowers: Rounded, almost spherical clusters of pink, lavendar, or purple flowers, about 2" (5 cm) around. Each flower has five notched petals and a thin tubular throat (the corolla) up to ½" (1.5 cm) long. The calyx of each flower in this variety lack glands, while G. bipinnatifida var. ciliata is densely covered with glandular hairs. They appear from February to October.
Fruits: Four nutlets, each ¹/₁₆-⅛" (2-3 mm) long.
Glandularia bipinnatifida at Southeastern Arizona Wildflowers and the Plants of the Sonoran Desert
Glandularia bipinnatifida at the Lady Bird Johnson Wildflower Center
Glandularia bipinnatifida on texas.wildflowersightings.org
Glandularia bipinnatifida on npsot.org
Glandularia bipinnatifida on SEINet—the Southwest Environmental Information Network
Glandularia bipinnatifida var. bipinnatifida description by Thomas H. Kent, last updated 12 Jul 2017.