species 11,212 observations

Hairy Crabweed

Fatoua villosa

Field notes

Fatoua villosa is an annual herb in the Moraceae (mulberry) family. Common names include mulberry weed, crabweed, or hairy crabweed in English, kuwakusa (クワクサ; 桑草) in Japanese, and shuǐ shémá (水蛇麻) or xiǎo shémá (小蛇麻) in Mandarin. It is native to Eastern Asia, some Pacific islands, and parts of Australia, including in two Australian states (Western Australia and Queensland), the Bismarck Archipelago, China, Indonesia (Java, Maluku, Sulawesi and the Lesser Sunda Islands), Japan, Korea, New Guinea, the Philippines, the Solomon Islands, Taiwan, Thailand and Vietnam. It has become an invasive species in the United States where it grows in disturbed areas such as flowerbeds, greenhouses, and agricultural fields.

Supports All

1 native animals
supported in the US

Flower visitors Pollinators and other flower visitors Horace's Duskywing 1

Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided

Key traits

Layer: Herbaceous plants
Light: Part shade Dappled shade Full shade
Moisture: Moist Wet
Soil: Loam Clay
Soil pH: Acid Neutral
Habit: Dense Erect Multi stemmed
Plant type: Annual Weed

From NC State Extension and USDA PLANTS.