Skip to main content

Dayflower

Commelina communis L.

Images

Click on image to view full size

Dayflower
Dayflower

Morphology

Stem
Erect at first, later prostrate creeping; glabrous to pubescent at nodes; often roots at nodes.
Leaves
Lance-ovate, .6 to 4 inches long, .4 to 1.5 inches wide, waxy beneath, rough whitish-hairy above; tips pointed.
Inflorescence
Few-flowered clusters.
Flower
3-parted; enclosed by spathe; spathe leaf-like, .5 to 1.2 inch long, open across top and also down back side to where it attaches to stalk, usually pale with darker green veins; spathe stalks to 2.6 inches long; upper 2 petals larger and blue; lower petal smaller and white; stamens 6, 3 fertile, 3 sterile.
Fruit
Capsules, 2-celled, 1/4 inch long, 1 or 2 seeds per cell; seeds minutely-pitted.

Ecology

Habitat
Stream banks and other moist, shaded areas.
Distribution
East 1/3 of Kansas.

Additional Notes

Comments

A common weed. The flowers bloom for one day, wilting into a moist, blue mass after a few hours. The flower can last longer on cloudy days or in shady settings. The plant produces several buds that open 3-4 days apart.

Special Notes: See commelina erecta a closely related species.
Quick Facts
Plant Type
Wildflower
Family
Commelinaceae - Spiderwort Family
Life Span
Annual
Height
6-32 inches
Origin
Native
Last Updated
2007-11-21
Color Groups
Blue, Purple, Lavender & Violet Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: July, August, September