OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Strophostyles helvola   FAMILY Fabaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Strophostyles helvola   FAMILY Fabaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Strophostyles helvola

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Floristic Synthesis of North America (Kartesz, 1999)

Strophostyles helvula

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 098-46-001:

Strophostyles helvola   FAMILY Fabaceae

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

Strophostyles helvola

 

COMMON NAME:
Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean


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

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_sthe4_001_lvd

        

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_sthe9_001_lvd

        

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm140831_175

August    Greenville County    SC

Swamp Rabbit Trail

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm180814_3770

August    McCormick County    SC

Parks Mill

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

Roxanna Martin    rlm82209_156b

August    Spartanburg County    SC

Critter.

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

Roxanna Martin    rlm82510_36

August    Spartanburg County    SC

Legume (3.5)5-10cm long, 5-8mm broad, sparsely appressed-pubescent, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

Roxanna Martin    rlm82510_38

August    Spartanburg County    SC

Keel w a distinctly curved, slender beak projected away from the standard, per Phylogenetic Systematics of Strophostyles (Fabaceae) (Riley-Hulting, 2004).

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

Roxanna Martin    rlm82708_091

August    Spartanburg County    SC

Leaflets usually prominently 3-lobed; terminal leaflet 2.5-3.5cm wide, per Weakley's Flora.


click here to see other plants that look similar to this COMPARE leaves that are trifoliolate and pinnately compound

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm100903_601

September    Greenville County    SC

Swamp Rabbit Trail

Leaflets usually have one or two lateral lobes, per Wildflowers of Tennessee (Carman, 2005).

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm100903_604

September    Greenville County    SC

Swamp Rabbit Trail

Stems glabrous to spreading-pilose, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm180913_4704

September    Greenville County    SC

Flowers of this genus have a keel strongly curved upward forming a beak, per Wildflowers of the Southern Mountains (Smith, 1998).

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm180913_4708

September    Greenville County    SC

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm180914_4724

September    Greenville County    SC

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm180914_4726

September    Greenville County    SC

Leaflets have petiolules and stipels, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm180914_4730

September    Greenville County    SC

Bracteoles (immediately subtending calyx) equal or exceed the calyx tube, per Weakley's Flora.

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

Roxanna Martin    rlm9410_364

September    Spartanburg County    SC

Petals roseate to purplish, often turning greenish, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

Roxanna Martin    rlm10811_171

October    Spartanburg County    SC

Leaflets ovate or rhombic-ovate to ovate-oblong or commonly 3-lobed, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Strophostyles helvola, Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean

JK Marlow    jkm231104_6564

November    Horry County    SC

Myrtle Beach State Park

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Strophostyles helvola   FAMILY Fabaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Strophostyles helvola   FAMILY Fabaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Strophostyles helvola

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Floristic Synthesis of North America (Kartesz, 1999)
Strophostyles helvula

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 098-46-001:
Strophostyles helvola   FAMILY Fabaceae

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

 

Find by SCIENTIFIC NAME:

1470

Herbaceous vine
Annual

Habitat: Coastal dunes, beaches, dry sandy woodlands, disturbed areas, per Weakley's Flora

Native to the Carolinas & Georgia

Common (rare in NC Mountains)

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

LEAVES:
Odd-pinnately compound: 3 leaflets
Mostly alternate
Leaves have petioles.
Leaflets have petiolules.
Stipules are persistent.
Leaflets are subtended by stipels.

FLOWER:
Summer/Fall
Rose/ Purplish
Bilaterally symmetrical
2-lipped 5-lobed campanulate calyx (upper lobes united, so it appears 4-lobed)
5-parted papilionaceous corolla
10 stamens, diadelphous, 9 and 1
Superior ovary

Flowers in axillary racemes

FRUIT:
Summer/Fall
Legume

 

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



 


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