Native & Naturalized Plants of the Carolinas & Georgia


284

Forb
Annual

Non-native: New World tropics?
Documented growing wild in GA NC SC

Common

Look for it in fields (esp soybean fields), disturbed areas, per Weakley's Flora

map
To see a detailed map, click here


Invasive?

This plant may be causing problems in natural areas outside its native range, according to authorities such as:

Tennessee Exotic Pest Plant Council, 2009

 

full sun

LEAVES:
Even-pinnately compound: 4-6 leaflets
Mostly alternate

FLOWER:
Summer/Fall
Yellow
Bisexual
5-lobed calyx
5 petals
6-7 stamens & 3-4 staminodia
Superior ovary

FRUIT:
Summer/Fall
Legume

 

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



Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Fabales

WEAKLEY'S FLORA (11/30/12):
Senna obtusifolia   FAMILY Fabaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Senna obtusifolia   FAMILY Fabaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 098-05-001:
Cassia obtusifolia   FAMILY Fabaceae

 

COMMON NAME:
Coffeeweed, Sicklepod


Click or hover over the thumbnails to see larger pictures.

image of Senna obtusifolia

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_cato81_001_lvd

        

image of Senna obtusifolia

JK Marlow    jkm0308a_25

August    Williamsburg County    SC

image of Senna obtusifolia

JK Marlow    jkm140803_281

August    Greenville County    SC

Swamp Rabbit Trail

Leaflets 4-6, terminal pair largest, obovate, widely rounded apically, per Vascular Flora of the Carolinas.


click here to see other plants that look similar to this COMPARE pinnately compound leaves of forbs

image of Senna obtusifolia

Roxanna Martin    rlm82209_246

August    Spartanburg County    SC

Sepals unequal, per Vascular Flora of the Carolinas.

image of Senna obtusifolia

Richard and Teresa Ware    rtw_senna_obtusifolia_4

August        

image of Senna obtusifolia

Roxanna Martin    rlm9410_412

September    Spartanburg County    SC

Slightly unequal dull yellow petals that never seem to be open fully, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Senna obtusifolia

Roxanna Martin    rlm9410_417

September    Spartanburg County    SC

image of Senna obtusifolia

Roxanna Martin    rlm9609_049

September    Spartanburg County    SC

image of Senna obtusifolia

Richard and Teresa Ware    rtw_senna_obtusifolia_5

September        

Flowers are solitary or paired in upper leaf axils, per Wildflowers of Tennessee.

image of Senna obtusifolia

JK Marlow    jkm161106_145

November    Williamsburg County    SC

One to two legumes per node, per Forest Plants of the Southeast and Their Wildlife Uses.

image of Senna obtusifolia

JK Marlow    jkm161106_147

November    Williamsburg County    SC

Legume narrowly linear, strongly curved, tetragonal, 1-2dm long, per Vascular Flora of the Carolinas.