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Swaziland's Alien Plants Database
| Ageratum conyzoides L. |
| ASTERACEAE |
| tropic ageratum, goat weed, billygoat weed, tropical whiteweed, blue top |
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Disturbed areas, Minor problem species |
| Origin: Tropical America |
| Growth Form: Herb |
| Plant Description: Plant: Softly hairy, slightly aromatic, annual herb with fluffy flowerheads; stems green, purplish or reddish, 0.3–1.0 (–1.5) m high.
Leaves: Bright green, ovate, in opposite pairs, margins shallowly toothed or scalloped.
Flowers: Mauve, blue, pinkish or white in compact terminal flowerheads, all year; heads 4–5 mm across with slender, hardly exserted styles.
Fruit: Brown, one-seeded achenes. |
| Key Features: |
| Control: cultivate and pre-emergence herbicides |
| Comments: |
More information:
Weeds & Invasive Plants Home Page
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Photo - flowers/leaves
K Braun, Swaziland's Alien Plants Database
Photo - plant
K Braun, Swaziland's Alien Plants Database
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