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Ageratum conyzoides

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Ageratum conyzoides (L.) L.

Family Name: Asteraceae (Compositae)
Synonyms: Ageratum album, Ageratum arsenei, Ageratum ciliare, Ageratum cordifolium, Ageratum hirsutum
Common Name: White Weed, 白花草

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Classifications and Characteristics

Plant Division Angiosperms (Flowering Seed Plants)
Plant Growth Form Herbaceous Plant
Mode of Nutrition Autotrophic

Biogeography

Native Habitat Terrestrial

Description and Ethnobotany

Growth Form Herbaceous plant with an erect growth habit.
Foliage Ovate leaves with serrate leaf margin are arranged in pairs (opposite leaf arrangement).
Stems Reddish purple or light green stem is covered in soft white hairs.
Flowers The inflorescence is composed of a cluster of 30-50 white to purple flowers. It is known as a corymb.
Fruit Dry, indehiscent fruits are known as achenes. The small, single-seeded fruits are dispersed by wind.
Cultivation Seeds germinate best at temperatures of 20-25 degrees Celsius.
Etymology The genus Ageratum is derived from Greek words that mean not aging. It is a reference to species in the genus with long-lasting flowers. The specific epithet conyzoides comes from the Greek name of Inula helenium (konyz), an herbaceous plant that looks similar to Ageratum conyzoides.
Ethnobotanical Uses Medicinal: Whole plant extracts in water provided pain relief and increased mobility in  patients with arthritis (Neto et al 1988, Mattos 1988).
Others: The leaves contain insecticidal compounds that promote early metamorphosis and altered morphological development (Sujatha et al. 1988, Ekundayo et al. 1987, Raja et al. 1987).

Plant Care and Propagation

Light Preference Full Sun, Semi-Shade
Water Preference Moderate Water
Plant Growth Rate Fast

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Master ID 30827
Species ID 5183
Flora Disclaimer The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes.
Species record last updated on: 04 August 2022.
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