Flora of the Hawaiian Islands
Dicotyledon Literature for Torenia asiatica
Wagner et al., 1990, 1999.
   Linderniaceae Bibliography
      Torenia asiatica

Common name(s): wishbone flower, wishbone plant, nanioola`a (Hawai`i), ola`a beauty
General Information
DistributionNative to southern India.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Maui, Hawai`i.

Annual herbs; stems decumbent, often rooting at the nodes, usually 1-3 dm long.
Leaves ovate-deltate, 1-4.5 cm long, 0.5-2.6 cm wide, upper surface minutely scabrous, lower surface glabrous or very sparsely puberulent along the veins, margins coarsely serrate, apex obtuse to acuminate, base truncate to truncate-cordate, petioles 0.5-1 cm long.
Calyx cylindrical, angled but not broadly winged, 17-23 mm long, enlarging up to 40 mm long in fruit; corolla violet purple, lower lip much paler, 15-25 mm long; longer stamens with long, firm, filiform appendages above the base.
Capsules oblong-ovoid, ca. 1 cm long, withered style persistent.
Seeds oblong-ellipsoid, ca. 0.5 mm long, reticulate-pitted.
2n = 16