Plant · GBIF taxon 3146717
Flax-leaved Horseweed
Erigeron bonariensisAlso known as Hairy Fleabane, Hairy Horseweed, Argentine Fleabane, Wavy-leaf Fleabane
Flax-leaved horseweed colonizes disturbed soils, agricultural fields, and urban pavements across warm temperate and tropical regions around the globe. A dense coat of greyish hairs and narrow, wavy-edged leaves give the plant a dusty appearance and help it conserve moisture in dry environments. Each individual produces tens of thousands of lightweight seeds equipped with feathery tufts that carry them far on light breezes.
WeedyFloweringPioneer Species
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & prey
- Autotrophic (Photosynthetic)
Predators
- Herbivorous Insects
- Grazing Livestock
- Finches
ThreatsHerbicide resistance in agricultural contexts
HabitatsDisturbed ground, roadsides, agricultural fields, waste places
Life spanAnnual or biennial
Size / weightNot available
Classification
- FamilyAsteraceae
- SpeciesErigeron bonariensis
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe at a normal distance.
Responsible observation
- Spotting: Look for erect, grey-green leafy stems bearing small, dull off-white flower heads in late summer.
- Distinguishing: Check the leaves for dense, soft hairy coverage and slightly wavy edges.
Genus Member no rights reserved, uploaded by Alex Heyman · cc0
Close Relative (c) Zihao Wang, some rights reserved (CC BY), uploaded by Zihao Wang · cc-by
Close Relative
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