Small carpetgrass (Arthraxon hispidus)

Small carpetgrass

Also known as: Creek grass, Hairy jointgrass

Arthraxon hispidus originated in East Asia and was introduced by accident into the United States, where it has become an invasive weed. To control small carpetgrass, you can pull it by hand before seeds are produced, or it can be controlled with an herbicide specifically made for wetlands.

Scientific classification

Species

Small carpetgrass (Arthraxon hispidus)

Grasses, sedges and allies

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Annual

Lifespan

Grass

Plant Type

2.5 cm to 8 cm

Flower Size

Yellow, Green, Purple, Brown

Flower Color

Semi-evergreen

Leaf type

Images of Small carpetgrass

Distribution of Small carpetgrass

Distribution Map

Small carpetgrass is native to tropical and subtropical regions across various continents, including substantial areas of Asia and Africa. Its spread outpaces its origins, extending to regions of Central and South America as well as parts of Europe through introduction. The plant thus presents a broad ecological footprint spanning multiple major world regions, both in its indigenous habitats and areas where it has been introduced.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Riparian, disturbed areas, forest, wetland

Hemisphere Trend Curve

Northern

Sorthern

Weed Control

Small carpetgrass is a sprawling herbaceous plant native to Asia and Africa. It is widely considered a weed, but rarely an invasive plant.

How to Control It

Small carpetgrass should be removed before it produces seeds, in order to prevent its further spread. There are a few methods you can use to remove this plant:

Mechanical control - hand-pulling can be effective, but very time-consuming if the number of plants is great.
Chemical control - herbicide use is advised when the plants have formed thick stands and are present in great numbers. If you opt for herbicide use, please consult an agricultural expert to find which active substance is the best for your geographical region. Always read the instructions on the product label and follow them carefully.
Biological control - there are a few host-specific species of fungi that attack small carpetgrass plants. The most commonly used one is Bremia graminicola.

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Quickly Identify Small carpetgrass

Stems up to 40 inches (1 meter) long, flattened, wiry texture.

Leaves narrow, lance-shaped, rough surface, 1-3 inches (2.5-7.5 cm) long.

Flowers in spikes, small spikelets in pale green to purplish colors.

Fruit compact caryopsis, yellowish, smooth texture, around 4mm (0.16 inches).

Stems round, green with red hues, covered in white hairs, 0.08 inches (2 mm) thick.

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Care Guide for Small carpetgrass

Every week

Water

Full sun

Sunlight

Water: Small carpetgrass thrives in moderate moisture conditions, requiring weekly watering to avoid drought stress. Adapted as a ground cover, it benefits from rainwater for natural irrigation and nutrients, making it less tolerant of dry spells but capable of handling brief periods without water.

Pruning: Small carpetgrass is a low-growing grass featuring hairy stems. Prune in early to late spring to enhance growth and appearance. Regular trimming prevents overcrowding and disease, while clean, sharp tools are essential. Consistent care promotes healthy development and a well-maintained garden space.

Propagation: Small carpetgrass propagates through sowing, requiring a prepared seedbed free of weeds. Even seed distribution and light soil covering aid moisture retention. Regular watering is essential, avoiding waterlogging. With patience and care, small carpetgrass will eventually thrive as a lush groundcover.

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Images of Small carpetgrass

Distribution of Small carpetgrass

Weed Control

Quickly Identify Small carpetgrass

Care Guide for Small carpetgrass

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