Gymnocoronis spilanthoides
Unwanted Organism, National Pest Plant Accord
Senegal tea
- Scientific Name
- Gymnocoronis spilanthoides
- Origin
- Native of South America
- Type
- Weed
- Plant Life-form Type
- Marginal sprawling
- Taxonomy
- (D. Don) DC.
- Presence
- Locally naturalised, most sites targeted for eradication, first record from Papakura, Auckland in 1990
- Habitat
- Still and flowing water bodies
- Notes
- A potential sprawling emergent weed, with eradication programmes at all known sites.
- Propagation
- Spreads by stem fragments and seed
- Features
- Sprawling emergent perennial herb. Leaves are dark green, opposite, and ovate to lanceolate in shape. They vary in size from 5 to 20 cm long, 2.5 to 5 cm wide, and are on shortish stalks. Leaf margins are serrate and slightly wavy. Flowers are whitish, numerous, and grouped into terminal heads that are 1.5 to 2 cm in diameter. Stems are pale green and prostrate, becoming erect when flowering. Flowers are highly scented.
- Source
- TIFBIS
- Regional
- Regional Pest Management Strategy: AUK, BOP, MBH, NSN/TAS, NTL, TKI, MWT, WGN.