Description
Key Characters:
Growth Form:
Somewhat fleshy, small herbs 1–3 dm tall, glabrous.
Stems:
Roots:
Leaves:
Leaves simple.
Opposite.
Blades oblong–ovate or elliptic–ovate, lowest ones 2–3 cm long, 0.3–0.6 cm wide, upper ones scale-like, ca. 0.3–0.5 cm long.
Margins entire.
Sessile.
Stipules absent.
Flowers:
Flowers solitary in the leaf axils.
Flowers bisexual (perfect); pedicels capillary, 10–25 mm long.
Calyx ca. 1–1.5 mm long, deeply 5–cleft.
Corolla pale blue, ca. 3 mm long, bilabiate, upper lip overlapping lower lip in bud, 2-lobed, lower lip much larger, 3-lobed, the lobes spreading.
Stamens 2, with 2 staminodes included in corolla tube.
Ovary superior, 2-carpellate, with as many cells; ovule placentation axile; stigma 2-lobed.
Fruit:
Capsules globose to ovoid; 2–3 mm long.
Seeds ovoid; ca. 0.2 mm long; transversely and laterally ribbed.
Ploidy:
2n = 28
Habitat:
Sparingly naturalized in Hanalei and Hanapepe valleys in and around taro patches.
Elevation Range:
near sea level.