OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Arthraxon hispidus var. hispidus   FAMILY Poaceae   Go to FSUS key



INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Arthraxon hispidus   FAMILY Poaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 25 (2003)

Arthraxon hispidus var. hispidus

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)

Arthraxon hispidus

INCLUDING VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-86-001:

Arthraxon hispidus var. cryptatherus   FAMILY Poaceae

INCLUDING Manual of the Grasses of the US (Hitchcock & Chase, 1950)

Arthraxon hispidus var. cryptatherus

 

COMMON NAME:
Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass


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

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_arhi3_003_lvd

        

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Terry Holdsclaw    tdh_a_hispidus_hispidus_2

September    Iredell County    NC

Stem terminated by a hand-like or fan-shaped inflorescence composed of 12-20 slender divisions, per Vascular Plants of North Carolina.

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Terry Holdsclaw    tdh_a_hispidus_hispidus2b

September    Iredell County    NC

Sometimes confused with Microstegium, but Arthraxon has distinctly cordate-clasping leaves, per Weakley's Flora (2023).

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

JK Marlow    jkm161009_875

October    Pickens County    SC

Clemson Forest

Spikelets not paired, unaccompanied by a vestige, per Weakley's Flora (2015).

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

JK Marlow    jkm161009_878

October    Pickens County    SC

Clemson Forest

Plants weak-stemmed annuals, branching, decumbent, rooting at the lower nodes, per Weakley's Flora (2023).

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

JK Marlow    jkm161009_879

October    Pickens County    SC

Clemson Forest

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Keith Bradley    kab_a_hispidus_7343

October    Henderson County    NC

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Keith Bradley    kab_a_hispidus_7353

October    Henderson County    NC

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Terry Holdsclaw    tdh_a_hispidus_hispidus_1

October    Iredell County    NC

Panicles of few to several racemes, flabellate, on filiform peduncles, per Manual of the Grasses of the United States (Hitchcock & Chase, 1950).

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org     bug_5273064

Month Unknown        

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org    bug_5306069

Month Unknown        

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Bruce Ackley, The Ohio State University, Bugwood.org     bug_5437555

Month Unknown        

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org     bug_5448818

Month Unknown        

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org     bug_5448841

Month Unknown        

Leaves ovate-lanceolate, cordate-clasping at base, per Weakley's Flora (2023).

image of Arthraxon hispidus var. hispidus, Hairy Jointgrass, Small Carpgrass, Joint-head Grass, Basket Grass

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org     bug_5448842

Month Unknown        

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Arthraxon hispidus var. hispidus   FAMILY Poaceae

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Arthraxon hispidus   FAMILY Poaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 25
Arthraxon hispidus var. hispidus

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Arthraxon hispidus

INCLUDING VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-86-001:
Arthraxon hispidus var. cryptatherus   FAMILY Poaceae

INCLUDING Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Arthraxon hispidus var. cryptatherus

 

Find by SCIENTIFIC NAME:

2939

Grass, Sedge, or Rush
Annual

Habitat: Moist ditches, bottomlands, disturbed areas, per Weakley's Flora

Non-native: southeast Asia

Common (uncommon in SC Coastal Plain, rare in GA Coastal Plain)

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

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)


INVASIVE

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

 

LEAVES:
Simple
Alternate, 2-ranked

FLOWER:
Summer/Fall

FRUIT:
Summer/Fall
Grain yellowish
Grain

 

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



 


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