OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Malvids: Malvales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Hibiscus trionum   FAMILY Malvaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Hibiscus trionum   FAMILY Malvaceae

SYNONYMOUS WITH Flora of North America

Hibiscus trionum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 122-08-005:

Hibiscus trionum   FAMILY Malvaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Trionum trionum

 

COMMON NAME:
Flower-of-an-hour, Venice Mallow, Bladder Ketmia


         To see larger pictures, click or hover over the thumbnails.

image of Hibiscus trionum, Flower-of-an-hour, Venice Mallow, Bladder Ketmia

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_hitr_001_lvd

        

image of Hibiscus trionum, Flower-of-an-hour, Venice Mallow, Bladder Ketmia

Terry Holdsclaw    tdh_hibiscus_trionum

July    Iredell County    NC

Annual from a taproot, to 0.5m tall, per Weakley's Flora.

image of Hibiscus trionum, Flower-of-an-hour, Venice Mallow, Bladder Ketmia

Terry Holdsclaw    tdh_hibiscus_trionumb

July    Iredell County    NC

Petals pale yellow with a purple base, the flowers only open a few hours, per Wildflowers of Tennessee (Carman, 2005).

image of Hibiscus trionum, Flower-of-an-hour, Venice Mallow, Bladder Ketmia

Terry Holdsclaw    tdh_hibiscus_trionumc

July    Iredell County    NC

A low plant w leaves deeply parted into 3 narrow, coarsely toothed segments, per Wildflowers of the Southern Mountains (Smith, 1998).

image of Hibiscus trionum, Flower-of-an-hour, Venice Mallow, Bladder Ketmia

Sam Pratt    sbp_081413_1907

August    Spartanburg County    SC

Calyx inflated at maturity; capsule 1.0-1.3 cm long, per Weakley's Flora.

image of Hibiscus trionum, Flower-of-an-hour, Venice Mallow, Bladder Ketmia

Sam Pratt    sbp_081413_1907b

August    Spartanburg County    SC

Calyx conspicuously veined and hairy, per Wildflowers of Tennessee (Carman, 2005).

image of Hibiscus trionum, Flower-of-an-hour, Venice Mallow, Bladder Ketmia

Sam Pratt    sbp_092513_1914

September    Spartanburg County    SC

In cultivation

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Hibiscus trionum   FAMILY Malvaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Hibiscus trionum   FAMILY Malvaceae

SYNONYMOUS WITH Flora of North America
Hibiscus trionum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 122-08-005:
Hibiscus trionum   FAMILY Malvaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Trionum trionum

 

Find by SCIENTIFIC NAME:

2842

Forb
Annual

Habitat: Fields, roadsides, railroad yards, disturbed areas, per Weakley's Flora

Non-native: Europe or Africa

Uncommon in NC Piedmont, rare or waifs elsewhere in GA-NC-SC

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple: Palmately divided

FLOWER:
Summer/Fall
Pale yellow/ Cream (with a red or purple center)
5 sepals united at base or more than half their length
5 petals united at base
Stamens united to form a staminal column surrounding ovary and styles
Superior ovary

FRUIT:
Summer/Fall
Capsule

 

TO LEARN MORE about this plant, look it up in a good book!



 


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