Synonym: Specularia rariflorum
This is an annual herb producing a very thin,
erect stem to 30 centimeters in maximum height.
It branches few times if at all and is dark green to reddish in color. Leaves are
occasional along the stem and are heart-shaped to rounded with a toothed edge.
Also at occasions along the stem are the flowers, which emerge from a base of
toothed or spiny leaflike sepals a few millimeters long. The corolla of the
flower is a cylindrical tube 3 to 5 centimeters long, blue or lavender with
darker veining and a lighter throat, and spreading into triangular
lobes at the mouth. (from GBIF.org)