Variable Dayflower
Creeping plant with two, deep blue petals on each flower that are open for less than one day.
Tropical Spiderwort
Two large blue petals and one smaller appear for a short time, maybe a day. Common herb or weed in moist gardens.
African Dayflower
Low growing herb with two larger oval petals to each flower. Leaf shape and colors highly variable.
Murdannia
Three more-or-less equal blue petals. Knot-like swellings on stems below open flowers. Narrow leaves.
Aneilema
Vine-like, herbaceous or slightly woody plant clambers over other vegetation. Two petals much larger than the third. Partly shady undergrowth.
Nicholson's Spiderwort
The purple-blue flowers with two enlarged petals are set in a compact spike of many flowers.
Cyanotis
Small, three-petaled, purple flowers with 6 stamens. Leaf bases with sheathes giving stem jointed look. Succulent.
Floscopa
Aquatic plant of shallow flooded areas, marshes. Clasping linear leaves. Showy purple flowers in many-headed clusters.
Wandering Jew
Decumbent, partly succulent plant with dark, purplish leaves and lavender purple blooms. Non-native escaped from landscapes and gardens.