Ageratum houstonianum
(Blue billygoat weed, Dark bluetop)
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FAMILY |
Asteraceae |
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Species |
Ageratum houstonianum |
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Common name(s) |
Blue billygoat weed, Dark bluetop |
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Flower colour; life form |
Flowers blue-mauve. Erect or semi-prostrate herb to 1 m tall |
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Distinguishing features |
Leaves opposite at base, later alternate; base of leaves truncate. Flowering heads compact; involucral bracts with coarse hairs, glandular. Florets blue-mauve. Pappus of usually 5 white awned scales. |
