Native & Naturalized Plants of the Carolinas & Georgia


469

Forb
Annual

Native to the Carolinas & Georgia
Documented growing wild in GA NC SC

Common

Look for it on dunes, sandy roadsides, glades, other dry habitats, per Weakley's Flora

map
To see a detailed map, click here

 

full sun ...Dry

LEAVES:
Simple
Opposite

FLOWER:
Summer/Fall
White
Bisexual
Radially symmetrical
4-merous
4-lobed calyx
4-lobed salverform corolla
4 stamens

FRUIT:
Summer/Fall

 

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



Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales

WEAKLEY'S FLORA (11/30/12):
Diodia teres   FAMILY Rubiaceae

GREATER THAN PLANTS NATIONAL DATABASE:
Diodia teres +   FAMILY Rubiaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 173-03-002:
Diodia teres   FAMILY Rubiaceae

SYNONYMOUS WITH Revisión de las especies americanas del género Diodia (Bacigalupo & Cabral 1999)
Diodella teres

 

COMMON NAME:
Poor-joe, Rough Buttonweed


Click or hover over the thumbnails to see larger pictures.

image of Diodia teres

JK Marlow    jkm090716_044

July    Georgetown County    SC

Huntington Beach State Park

image of Diodia teres

JK Marlow    jkm0508g_16

August    Greenville County    SC

Field

Leaves stiff with bristles at their base, per Newcomb's Wildflower Guide.

image of Diodia teres

JK Marlow    jkm0508g_18

August    Greenville County    SC

Field

Weedy often-branched annual with prostrate, spreading or ascending stems, per Wildflowers of Tennessee.

image of Diodia teres

Richard and Teresa Ware    rtw_d_teres_poorjoe_2_s

August        

The 4 stamens are attached to the corolla tube, and the stigma is 2-lobed, per Guide to the Plants of Granite Outcrops.

image of Diodia teres

JK Marlow    jkm0509d_22

September    Greenville County    SC

Field

The petals are fused to form a tubular 4-lobed corolla, per Guide to the Plants of Granite Outcrops.

image of Diodia teres

JK Marlow    jkm160907_057b

September    Greenville County    SC

image of Diodia teres

JK Marlow    jkm160907_064

September    Greenville County    SC

image of Diodia teres

Roxanna Martin    rlm91209_096

September    Spartanburg County    SC

image of Diodia teres

Roxanna Martin    rlm91910_184

September    Spartanburg County    SC

Fruit capsule somewhat roundish, hairy, & topped by 4 persistent sepals, per Wildflowers of Tennessee.

image of Diodia teres

Roxanna Martin    rlm9410_292

September    Spartanburg County    SC

Pinkish funnelform flowers are 4-lobed, sessile, & borne in leaf axils, per Wildflowers of Tennessee.

image of Diodia teres

JK Marlow    s050910_d

September    Greenville County    SC

Field

Stem often reddish-purple with lines of hairs, per Weeds of Southern Turfgrasses.

image of Diodia teres

JK Marlow    s050910_e

September    Greenville County    SC

Field

Stipules to 0.4" long have a short sheath and 5-8 bristles, per Wildflowers of Tennessee.