Northern Prairie Wildlife Research Center
Spreading Dayflower (Commelina diffusa)
- Family: Dayflower (Commelinaceae)
- Flowering: July-October.
- Field Marks: This dayflower has creeping stems, all 3 petals blue, and 5 anthers.
- Habitat: Wet ground, sometimes in fields.
- Habit: Creeping annual, rooting at the nodes, with fibrous roots.
- Stems: Creeping, smooth, up to 2 feet long.
- Leaves: Alternate, simple, lanceolate to ovate-lanceolate, pointed at the tip, rounded or tapering to the base, without teeth, smooth, up to 3 inches long and up to 2/3 inch broad.
- Flowers: 1-3 together, arising from a leaf-like, folded spathe that is not united, blue.
- Sepals: 3, green, unequal in size.
- Petals: 3, all blue, two of them larger than the third one.
- Stamens: 5.
- Pistils: Ovary superior, smooth.
- Fruits: Capsule containing 5 seeds; seeds oblong, black veiny, 1/10 inch long.
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