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Hemarthria compressa (L.f) R. Br.

Whip grass

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Description

Hemarthria compressa is a perennial creeping grass, usually 30–100 cm tall, forming dense mats through long creeping stolons. Culms are slender, flattened or compressed, rooting at nodes, and producing extensive vegetative growth. Leaves are linear, narrow, and flat, usually 5–25 cm long and 3–10 mm wide. Leaf blades are smooth, green, and often slightly folded. Leaf sheaths are compressed and closely surround the stem. Ligules are short and membranous. The inflorescence consists of slender spike-like racemes, usually partly enclosed within the upper leaf sheaths. Spikelets occur in pairs along the rachis, with one sessile fertile spikelet and one reduced spikelet. Flowers are bisexual, reduced, and wind-pollinated. The fruit is a small caryopsis.

Diagnostic Characters

Vegetative
Perennial creeping habit. Flattened stems. Dense mat formation.
Floral
Spike-like racemes. Inflorescences partly enclosed by leaf sheaths. Ecological Characters Strong vegetative spread, Moist habitat preference.

Distribution

Native range: Native to Tropical and subtropical Asia.

In Pakistan: Found in Pakistan, India, China, Southeast Asia.

Phenology

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Flowering
Fruiting
Flowering: Summer–autumn Fruiting: Autumn

Ethnobotany & Uses

Fodder Importance
A valuable forage grass used for Livestock grazing, Hay production, Pasture improvement. It provides High biomass, Good palatability.
Ecological Importance
Stabilizes wet soils. Prevents erosion. Provides habitat for wetland organisms.
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Where it grows on campus

This species is on the campus floristic list but was not pinned during the GPS mapping survey, so it has no map records yet.

Taxonomic Notes

Hemarthria belongs to tribe Andropogoneae.