Artemisia verlotiorum Lamotte

Code

ARTVE

Growth form

broadleaf

Biological cycle

vivacious

Habitat

terrestrial

China: Artemisia verlotiorum flowers and fruits from July to October.
Madagascar: Artemisia verlotiorum is a vivacious weed that grows and multiplies all year round.

Artemisia verlotiorum is a vivacious species. The hypocotyl of the plant bears buds at ground level or on old stumps and underground rhizome from which suckers grow. The extension of rhizomes and / or fragmentation during tillage of soil, allow the vegetative propagation of the species. It is capable of forming dense populations. It is also spread by seed.

China: Artemisia verlotiorum grows on hillsides, roadsides and wasteland; from sea level to 2000 m.
Madagascar: Artemisia verlotiorum grows on sandy clay soils or clay loam humus, fairly fertile, more or less humid around lowland and in humid areas but not in flooded plains, in tropical sub-humid climate in altitude. It is a weed of vegetable crops, invading edges of cultures and canals and lowland pastures. It prefers sunny or slightly shaded grounds, in vegetables cultivation, taro crops, sugarcane in more or less intensive systems. It is especially present in upland regions as from 800 m altitude. 
Mauritius: This species occurs in the humid and perhumid regions where it prefers open and well-lit places for its development.
Reunion: Artemisia verlotiorum needs lots of nitrogen to grow. It particularly prefers clay or clay loam soils. However, it seems to prefer slight moisture and shade. It is very commonly found throughout the western and southern part of the island, at an altitude between 400 and 800 m. It is also located on the coast, especially on irrigated alluvial plain or with a shallow waterbody.
West Indies: Artemisia verlotiorum is found here and there in Guadeloupe at altitudes of between 0 and 700 m.

Local harmfulness

Brazil: Artemisia verlotiorum is an invasive species in lightly used areas.
Madagascar: Species recently introduced and rapidly expanding on the highlands of Madagascar; currently of low frequency but often abundant and troublesome.
Mauritius: It is a highly aggressive weed, harmful in crops, its eradication in the sugar cane land is difficult because of its extensive rhizome network that spreads rapidly in the soil.
Reunion: A. verlotiorum colonizes both vegetables and pineapple as sugar cane fields. It is uncommon (Fr = 12%) but very often abundant, with cover percentage of up to 100%, and becomes a major agronomic constraints on these sites. It can cause major economic losses. Vegetative propagation by rhizomes makes its mechanical removal very difficult; all tillage of soil has more tendency to multiply instead of controlling it.
Seychelles: absent.

Medicinal: used in traditional medicine as anti-helminthic, febrifuge and emmenagogue. Essential oils (cineole and thujone), flavonoids, triterpenes and derivatives have potential use for treating various diseases.

Local management

Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Artemisia%2520verlotiorum