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Slender woodoats

Chasmanthium laxum

Other common name(s):

Spike Uniola, Slender Chasmanthium

Family:

Poaceae (Grass Family)

Plant Ecoregion Distribution Map

East Central Texas Plains, Gulf Coast Prairies and Marshes, Western Gulf Coastal Plain
Bastrop Lost Pines, Northern Post Oak Savanna, Northern Prairie Outliers
Northern Humid Gulf Coastal Prairies, Texas-Louisiana Coastal Marshes
Flatwoods, Floodplains and Low Terraces3, Pleistocene Fluvial Terraces, Red River Bottomlands, Southern Tertiary Uplands, Tertiary Uplands

Plant Characteristics

Growth Form

Grass & Sedge

Height

2
to
3
ft.

Spread

1
to
2
ft.

Leaf Retention

Deciduous

Lifespan

Perennial

Habitat and Care Requirements

Soil Type(s)

Well Drained, Moist, Dry

Light Requirement

Sun, Part Shade, Shade

Water Requirement

Low, Medium

Native Habitat

Woodland, Wetland or Riparian

Bloom and Attraction

Bloom Color

No Bloom

Bloom Season

Summer

Seasonal Interest

Seeds, Forage

Wildlife Benefit

Browsers, Birds

Maintenance

Low maintenance. Moderately drought tolerant, and shade tolerant. Thrives in woods, coastal plains, meadows, swamps. Well-suited for naturalistic plantings and restoration projects in shady or partially sunny areas. Possible pests, aphids.

Comments

Produces attractive arrowhead-shaped seed heads. Tufted on short rhizomes. Tends to hybridize with others of this genus. Attracts: herbivores and birds.
Previous Scientific Name(s): Synonym(s): Uniola laxa

References

1) https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=41548#null, 2) http://bonap.net/TDC/Image/Map?taxonType=Species&taxonId=17948&locationType=County&mapType=Normal, 3) https://www.wildflower.org/plants/result.php?id_plant=CHLA6, 4) https://hoffmannursery.com/plants?search=Slender+Woodoats, 5) http://coastalplainplants.org/wiki/index.php/Chasmanthium_laxum

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Contact a local Chapter

State Office Phone: 830.997.9272

State Office Address:
Native Plant Society of Texas
PO Box 3017
Fredericksburg, TX 78624

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