Asian watergrass

Photo: Daderot, Public domain, via Wikimedia Commons

Floating · Poaceae

Asian watergrass

Hygroryza aristata (Retz.) Nees ex Wight & Arn.

easyGrowth: medium

—

Height in the aquarium

medium to high

Light

low

CO₂ needs

25–28 °C

Ideal temperature

Water parameters

Understand these values
pH5 – 8
49
Carbonate hardness (KH)0 – 14°
0°25°
Temperature18 – 32°Cideal 25–28°C
0°C35°C
Position
Not known
Propagation
fragmentation, cuttings, separating offshoots
Grows emersed
yes

In the wild

Overview

This Asian grass floats thanks to swollen leaf sheaths. Its fairly broad, lance-shaped, water-repellent leaves make a surface cover very different from duckweed or a floating rosette. In open air, on damp soil, it also grows in a creeping way.

Scientific name
Hygroryza aristata (Retz.) Nees ex Wight & Arn.
Classification
Poales › Poaceae
IUCN Red List
Not evaluated (NE)

Natural habitat

South Asia, Southeast Asia

Observations (GBIF) and localities Native countries Rivers and lakes

Native countries
Introduced by people

No introduction reported outside its native range.

Countries: Kew World Checklist of Vascular Plants (WCVP). Dots: GBIF observations in the native countries.

In the aquarium

Growing in the aquarium

Let it grow its shoots at the surface rather than trying to make it a fully submerged plant. Provide enough light and room for fast growth. Fragments let you renew the cover. Thin the planting if it becomes too dense, to keep light for the plants below.

Sources:Flowgrow GBIF POWO (Kew) · Base map: Natural Earth

Asian watergrass · Aquarius