Ageratum conyzoides L.

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution

Nativa en Colombia; Alt. 0 - 3420 m.; Amazonia, Andes, Llanura del Caribe, Orinoquia, Pacífico, Valle del Cauca, Valle del Magdalena.

Morphology General Habit

Hierba, subarbusto

Conservation

Preocupación Menor

Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Morphology General Habit

Annual herb to 1 m tall, malodorous; stem erect to occasionally decumbent, terete, sparsely pilose and whitish pubescent, especially at nodes, to subglabrous.

Morphology Leaves

Leaves opposite to occasionally sub-opposite above, with pubescent petiole 0.3–3 cm, blade ovate to rhomboid, 2.2–8.5 cm long, 1.2–6 cm wide, base obtuse, margins crenate to serrate, apex acute or obtuse, upper surface subglabrous to sparsely pilose, lower surface moderately pilose.

Morphology Reproductive morphology Inflorescences

Inflorescence much branched, open, of 1–several bunches of ± 7–40 heads borne in open to dense cymose clusters on pubescent and pilose bracteolate peduncles; capitula 4–5 mm in diameter; stalks of individual capitula 2–12 mm, extending in fruit to 37 mm; phyllaries bi-seriate, green, ovate to oblong-lanceolate, usually 2-ribbed, outer series 3.5–4.5 mm long, 0.9–1 mm wide, inner slightly narrower, margins basally entire, erose to lacerate at apex, rarely entire, apex abruptly contracted to point, occasionally short-acuminate, often purple, glabrous to subglabrous to very sparesly pilose.

Morphology Reproductive morphology Flowers Florets

Florets 40–57, corolla tubular to sub-urceolate, 2–2.2 mm long, tube white, limb externally glabrous to sub-glabrous, lobes acute, blue, white, mauve, or purple; anthers basally rounded; style-arms blue, white, mauve or purple, exserted for 0.8–1.2 mm, papillate.

Morphology Reproductive morphology Fruits

Achenes 1.2–1.8 mm long, glabrous between ribs; pappus of 5 triangular scales 1.9–2 mm long, acuminate into a slender awn (see note), margins scabrid.

Figures

Fig. 181/1–8 (page 828).

Habitat

Weedy escape in cultivation and post-cultivation, often a pioneer on cleared land such as logging tracks, also in grassland and Acacia woodland; 0-2150 m

Distribution

pantropical K1 K2 K3 K4 K5 K6 K7 P T1 T2 T3 T4 T5 T6

Bernal, R., G. Galeano, A. Rodríguez, H. Sarmiento y M. Gutiérrez. 2017. Nombres Comunes de las Plantas de Colombia. http://www.biovirtual.unal.edu.co/nombrescomunes/

Vernacular

barba de chivo, celestina azul, chamiza, chiva, chivatera, chivaza, chivita, chivo, chivo macho, copetona, copo de nieve, empella, estancadera, flor de octubre, florazul, florota, hierba de chivo, hierba de chucho, lanuda, manrubio, marrubio, marrubio blanco, mastranto, mejorana, pajarita, pegorreda, pelorrera, retentina, santalucía, toronjil cubano, upatoria, ventosidad, venturosa, yerba de chivo, yerba morada, yerba peluda, yerbadulce, yerbaechivo, yerbaelavieja, yerbaesapo, yerbazul

The Useful Plants of Boyacá project

Morphology General Habit

Herb or subshrub.

Conservation

Least concern.

Distribution

Native from Colombia.

Ecology

Alt. 0 - 3420 m.

George R. Proctor (2012). Flora of the Cayman Isands (Second Edition). Royal Botanic Gardens, Kew

Morphology General Habit

Erect annual herb usually to 50 cm (rarely 100 cm) tall

Morphology Leaves

Leaves with petioles 1–3.3 cm long; blades of lower leaves ovate, of upper leaves obovate to elliptic-oblong, 3–10 cm long, 1.9–7 cm broad, the apex acute, the base obtuse or cuneate, with crenate, ciliate margins, 3-nerved from base, and pilose with yellow glands on both surfaces to nearly glabrous

Morphology Reproductive morphology Inflorescences

Inflorescence of 4–18 heads in terminal cymose clusters; involucres bell-shaped, the phyllaries biseriate, oblong, 3–4.7 mm long; receptacle convex, naked

Morphology Reproductive morphology Flowers

Flowers 50–80 per head

Morphology Reproductive morphology Fruits

Achenes 5-angled, 1.2–2 mm long, black.

Distribution

Grand Cayman. Native of the neotropics, but now a pantropical weed.

Distribution

Biogeografic region: Amazonia, Andean, Caribbean, Orinoquia, Pacific. Elevation range: 0–3420 m a.s.l. Naturalised in Colombia. Colombian departments: Amazonas, Antioquia, Bogotá DC, Boyacá, Caldas, Caquetá, Casanare, Cauca, Chocó, Cundinamarca, Huila, Magdalena, Meta, Nariño, Norte de Santander, Putumayo, Quindío, Risaralda, Santander, Tolima, Valle del Cauca.

Habit

Herb, Subshrub.

Conservation

National Red List of Colombia (2021): Potential LC.

Ecology

Habitat according IUCN Habitats Classification: forest and woodland, savanna, shrubland, native grassland, wetlands (inland), artificial - terrestrial.

Vernacular

Barba de chivo, Berba de chivo, Chiva, Hierba de chivo, Hierba de santa lucía, Manrubio, Marrubio, Marrubio blanco, Marubio, Mastranto, Mentrasto

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation

Predicted extinction risk: not threatened. Confidence: confident

Compositae, C. D. Adams. Flora of West Tropical Africa 2. 1963

Morphology General Habit

A faintly aromatic erect or procumbent annual herb 1-3 ft. high

Morphology Reproductive morphology Flowers Florets

Mauve florets in heads about 1/4 in. long

Note

A common weed.

Use Animal Food

Used as animal food.

Use Environmental

Environmental uses.

Use Gene Sources

Used as gene sources.

Use Food

Used for food.

Use Invertebrate Food

Used as invertebrate food.

Use Materials

Used as material.

Use Medicines

Medical uses.

Use Poisons

Poisons.

Use Social

Social uses.