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Commelina erecta var. angustifolia (Whitemouth dayflower)
Marcus, Joseph A.

Commelina erecta var. angustifolia

Commelina erecta L. var. angustifolia (Michx.) Fernald

Whitemouth Dayflower, Narrow-leaf Dayflower, Widow's Tears

Commelinaceae (Spiderwort Family)

Synonym(s): Commelina angustifolia, Commelina crispa, Commelina erecta var. crispa, Commelina nashii

USDA Symbol: coera

USDA Native Status: L48 (N)


From the Image Gallery

38 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Lanceolate , Linear
Leaf Venation: Parallel
Leaf Margin: Entire
Inflorescence: Axillary , Terminal
Fruit Type: Capsule
Size Notes: Up to about 16 inches tall.

Bloom Information

Bloom Color: Blue
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec


USA: AL , AR , AZ , CO , DE , FL , GA , IA , IL , IN , KS , KY , LA , MO , MS , NC , NE , NJ , NM , OK , PA , SC , SD , TN , TX , VA , WV , WY

Growing Conditions

Light Requirement: Sun , Part Shade
Soil Moisture: Dry , Moist

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Lady Bird Johnson Wildflower Center - Austin, TX

Herbarium Specimen(s)

NPSOT 0408 Collected May 28, 1987 in Bexar County by Harry Cliffe
NPSOT 0407 Collected May 28, 1987 in Bexar County by Harry Cliffe
NPSOT 0388 Collected May 14, 1987 in Bexar County by Harry Cliffe
NPSOT 0525 Collected Jul 27, 1987 in Bexar County by Harry Cliffe
NPSOT 0351 Collected May 19, 1993 in Bexar County by Louise Morrell
NPSOT 0323 Collected May 22, 1987 in Bexar County by Harry Cliffe
NPSOT 0914 Collected Aug 3, 1994 in Bexar County by Mike Fox

7 specimen(s) available in the Digital Herbarium

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Commelina erecta var. angustifolia in USDA Plants
FNA: Find Commelina erecta var. angustifolia in the Flora of North America (if available)
Google: Search Google for Commelina erecta var. angustifolia


Record Modified: 2023-03-21
Research By: TWC Staff

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