
Hairy Crabweed
fatoua villosa
Hairy Crabweed (Fatoua villosa) is a fast-growing, opportunistic annual herb that has become a notorious weed across many parts of the world outside its native East Asian habitat. A member of the mulberry family (Moraceae), it thrives in disturbed soils, cultivated gardens, and commercial greenhouses, where it often hitchhikes undetected in the soil of nursery stock. Because of its rapid growth cycle and highly efficient reproductive strategies, it can quickly colonize empty spaces, making it a persistent headache for gardeners and agriculturalists. Despite its classification as an unwanted weed, Hairy Crabweed is a fascinating example of botanical adaptability. It has evolved to complete its life cycle in just a few short weeks, ensuring that even temporary patches of moisture and light are enough for it to produce another generation. Its success lies in its quiet resilience, easily blending in with harmless garden seedlings until it is already established.
Lebensraum: Typically found in disturbed soils, agricultural greenhouses, nursery containers, and shaded garden beds.
Aussehen
This plant is easily identified by its alternate, heart-shaped (ovate) leaves with serrated margins, which strongly resemble those of a young mulberry tree or a nettle. The entire plant, especially the stem and leaves, is covered in distinct, sticky, glandular hairs (trichomes) that give it a slightly dull, rough texture. It produces dense, globose, greenish-yellow to purple flower clusters (cymes) directly in the leaf axils. The plant typically grows upright, ranging from 10 to 80 centimeters in height depending on moisture and nutrient availability.

Kategorie
PflanzenSeltenheit
Common
Gefahr
1/5 · Sehr gering
Snaps
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Interessante Fakten
Despite looking very much like a harmless mulberry seedling, Hairy Crabweed is actually a true herbaceous member of the mulberry family (Moraceae).
It is a notorious pest in commercial greenhouses, earning the nickname 'the nursery hitchhiker' due to its ability to spread secretly in potted soil.
Its tiny seeds are sticky when wet, allowing them to cling to gardening tools, pots, and shoes to travel even longer distances.
Besondere Fähigkeiten
Explosive Seed Ballistics
The mature flowers can forcefully eject seeds over short distances, allowing the plant to rapidly colonize neighboring nursery pots.
Sticky Trichome Shield
Its stems and leaves are covered in glandular, sticky hairs that deter crawling herbivores and reduce water loss.
Rapid Life Cycle
It can transition from a newly germinated seed to a mature, seed-producing adult in as little as four weeks.
Maße und Details
- Länge
- 10-80 cm
- Gewicht
- 0.01-0.15 kg
- Lebenserwartung
- 0-1 Jahre
- Brutzeit
- 5-14 Tage
Ernährung und Fütterung
As an autotrophic plant, Hairy Crabweed produces its own energy via photosynthesis, absorbing water and vital minerals from the soil through its root system.
Hauptnahrung
- Sunlight
- Water
- Carbon dioxide
- Soil nutrients
Ökologische Zusammenhänge
Spotted Cucumber Beetle
Diabrotica undecimpunctata
Folivorous beetles frequently feed on the soft leaves of the crabweed.
Green Peach Aphid
Myzus persicae
Serves as a host reservoir for common agricultural aphid pests.
Red Mulberry
Morus rubra
Shares the same family (Moraceae) and competes for soil nutrients and light on woodland edges.
Merkmale
Für dieses Objekt sind noch keine Merkmal-Badges vergeben.
Auch bekannt als
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Sammlungen
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Sicherheit
Gefahr
1/5 · Sehr gering
Noch keine besonderen Sicherheitshinweise.
Häufig gestellte Fragen
Wie identifiziert man Hairy Crabweed?
Der einfachste Weg, Hairy Crabweed zu bestimmen, ist die Verwendung der Naturführer-App Snappit.
Was ist der/die/das länge von Hairy Crabweed?
10-80 cm
Was ist der/die/das gewicht von Hairy Crabweed?
0.01-0.15 kg
Was ist der/die/das lebenserwartung von Hairy Crabweed?
0-1 Jahre
Was frisst Hairy Crabweed?
As an autotrophic plant, Hairy Crabweed produces its own energy via photosynthesis, absorbing water and vital minerals from the soil through its root system.
Wo findet man Hairy Crabweed normalerweise?
Typically found in disturbed soils, agricultural greenhouses, nursery containers, and shaded garden beds.
Was ist der/die/das brutzeit von Hairy Crabweed?
5-14 Tage
Snap-Karte
Zoome hinein, um Cluster aufzulösen und zu sehen, wo dieses Objekt fotografiert wurde.
Neueste Snaps
Neueste Snaps erscheinen hier, wenn neue Beobachtungen hinzukommen.













