Guide botanique
Watermeal.
Wolffia globosa
Prononciation WOL-fee-uh glo-BO-suh
Aussi appelée Asian Watermeal

Watermeal is a tiny, rootless aquatic plant that floats on the surface of still water. It is actually one of the smallest flowering plants on the planet. You will often find it growing in dense mats alongside other duckweed species.

En un coup d'œil
- Niveau d'entretien
- Moyenne
- Type de plante
- Aquatic floating plant
- Lumière
- Partial shade to full sun
- Lumière en intérieur
- Lumière vive indirecte
- Arrosage
- Tous les 0 jours
- Taille adulte
- 1 millimeter
- Croissance
- Rapide
- Rusticité
- USDA 9 à 11
- Floraison
- Rarely blooms, typically in summer
Entretien
Keep this plant in a container with still water that has plenty of nutrients. Watch for the water turning stagnant or losing clarity, which can signal a need for a partial water change. Ensure it gets plenty of light to keep the colonies thriving.
- Arrosage
- This plant lives entirely submerged or floating in water.
- Engrais
- Add a small amount of liquid aquatic fertilizer if the water lacks nutrients.
- Taille
- Scoop out excess plants with a net to prevent them from covering the entire water surface.
- Rempotage
- Repotting is not applicable as this plant does not grow in soil.
- Sol
- None, aquatic
- pH du sol
- 6.0 to 7.5
- Température
- 15 à 30°C
- Humidité
- 70 à 100%
- Résistance à la sécheresse
- Faible
- Durée de vie
- Perennial, indefinite with proper water conditions
- Résistance aux chevreuils et lapins
- Moyenne
Signes qu'il faut rempoter
- Water surface becomes overcrowded
- Growth rate slows significantly
Sécurité
- Humains
- This plant is generally considered safe and is consumed as a vegetable in parts of Southeast Asia.
- Enfants
- Due to its tiny size, it poses a minor choking hazard if ingested in large quantities by very small children.
- Comestibilité
- Ensure the water source is clean and free of contaminants before considering consumption, as this plant readily absorbs heavy metals.
Comment l'identifier
- Tiny green granular floating fronds
- Lacks any visible roots
- Individual plants are pinhead sized
- Forms dense mats on water
- Rarely produces visible flowers
- Hauteur
- 0 à 0,01m
- Envergure
- 0 à 0,01m
- Feuilles
- bright green, deciduous
- Fleurs
- white, 0,1 à 0,2cm
Problèmes courants
- Algal bloom — Excessive nutrients can cause algae to outcompete the duckweed.
La cultiver
- Multiplication
- division
- Quand planter
- spring, summer
- Hivernage
- Move containers indoors to a bright, frost free location if temperatures drop below freezing.
- En pot
- Excellent for small bowls or ponds, provided the water is kept still.
Division
- 1. Scoop a small portion of the plants from the surface.
- 2. Place the portion into a new container with nutrient rich water.
- 3. Ensure the water remains still to encourage rapid growth.
Keep the water surface clear of debris to allow maximum light penetration for growth.
Bonnes associations
- Eichhornia crassipes — They share similar aquatic requirements.
Espèces similaires
- Duckweed — It is a related floating plant but significantly larger.
Science
- Famille
- Araceae
- Genre
- Wolffia
- Ordre
- Alismatales
- Classe
- Liliopsida
- Région d'origine
- Tropical and subtropical regions worldwide.
- Préservation
- Not of conservation concern as it is a prolific grower in suitable aquatic environments.
It thrives in still or slow moving nutrient rich waters where it forms dense mats.
- Intérêt pour la faune
- provides cover for small aquatic organisms, oxygenates water
- Utilisations
- aquatic food source, water purification, ornamental pond plant
Au fil des saisons
Repères écologiques
- Salinité
- 1/9
- Réaction du sol
- 6/9
- Lumière
- 7/9
- Température
- 8/9
- Humidité
- 9/9
- Nutriments
- 8/9
Taxonomie vérifiée avec le GBIF.
Ce qu'on demande souvent
- Does it need soil?
- No, it is a free floating aquatic plant.
- How fast does it grow?
- It can double its population in just a few days under ideal conditions.
D'où vient le nom
The genus is named after the German botanist Johann Friedrich Wolff, while globosa refers to its spherical shape.
Bon à savoir
- It lacks roots entirely.
- It is often called water meal.
- It has a very high protein content.
- It reproduces primarily through budding.
Ta plante a mauvaise mine ?
Cette page est un guide général. Pocket Botanist diagnostique les problèmes directement à partir d'une photo de ta plante, adapte l'arrosage à sa luminosité et te prévient quand il faut t'en occuper.
Ce guide a été généré par IA et vérifié avec la taxonomie du GBIF. Il s'agit d'informations générales, et non de conseils horticoles ou vétérinaires. Découvre comment nous concevons ces guides.
