Facts About. Paraguay starburr is native to South America and introduced in many other parts of the world. It only occurs occasionally in Massachusetts. It can be. Acanthospermum australe (Loefl.) This name is the accepted name of a species in the genus Acanthospermum Acanthospermum xanthioides (Kunth) DC. Asteraceae – Acanthospermum australe (Loefl.) Kuntze. Family: Asteraceae. Species: Acanthospermum australe (Loefl.) Kuntze. Eppo_code: ACNAU. Family: .

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Dicotyledonae Summary of Invasiveness Acanthospermum australe is a creeping annual or short-lived perennial plant, which originates from the tropics and sub-tropics of Central and South America. Antioxidant and antimicrobial potential of Asteraceae species.

It is also regarded as an invasive species within its native range in Brazil, where it occurs in conservation areas. Retrieved from ” https: It has been introduced in Chinaand is an invasive species in parts of the United StatesCanadaand South Africa.

Don’t need the entire report? Biological Invasions, 8 7: Flora Zambesiaca online eFloras. Leaves Leaves are simple austrae, oppositesupported by a short petiole.

Click on images to enlarge. Fruits are achenes, mm long and covered with numerous hooked spines, but apex is without 2 prominent spines. Flowers The flowers are few, small tubular and yellowish. No other natural enemies are commonly reported.

Inflorescences are terminal and axillary. Final leaf segment length compound lvs only 0 mm Final leaf segment width compound lvs only 0 mm Hairs on underside of leaf blade the underside of the leaf is not hairy, or has very few hairs Hairs on upper side of leaf blade the upper side of the leaf is not hairy, or has very few hairs Leaf arrangement opposite: Leaves on stem there is at least one full leaf above the base of the flowering stem Stem internode hair direction the hairs are pressed flat against the plant, pointing either towards the plant’s tip or towards it’s base Stem internode hair type at least some of the hairs on the stem have glands Stem internode hairs the stem has no hairs between the nodes.


In Australia it occurs on sand dunes and sandy soils along footpaths and roadsides in the near-coastal areas Technigro, Environmental Impact Top of page A.

Kuntze E Paraguay starburr. Integrated Taxonomic Information System. Endophytic fungi in medicinal plants of northeast of Argentina. Ecology It occurs on roadsides, in disturbed areas and dry river beds. Growth Stages Top of page Seedling stage, Vegetative growing stage.

The two acanthospemum i. Habitat Anthropogenic man-made or disturbed habitats.

Plantinvasivekruger – Asteraceae – Acanthospermum australe (Loefl.) Kuntze

These two species can be distinguished by the following differences:. Revista Brasileira de Plantas Medicinais, 15 4: Leaves are simpleoppositesupported by a short petiole.

The basis for these uses has not been explained, but Carvalho et al. Flowering occurs mostly during summer and autumn i.

Sheldon Navie spiny mature fruit Photo: The first true leaves are egg-shaped in outline i. Distribution Table Top of page The distribution in this summary table is based on all the information available. Very little information is available on the germination of A.


Plants Profile for Acanthospermum australe (Paraguayan starbur)

Acanthospermum australe is an alternate host of Thanatephorus cucumeris, the causal agent of web blight on dry beans.

The detection of high concentrations of caffeoylquinic acids in the acannthospermum indicated that their use in traditional medicine is justified Debenedetti et al. Sheldon Navie close-up of seeds Photo: Chemical and pharmaceutical studies on medicinal plants in Paraguay.

In Hawaii, the endangered Poa mannii on the island of Kauai is threatened by a number of invasive plants, including Acanthoapermum.

Acanthospermum australe (Loefl.) Kuntze — The Plant List

Accidental introduction can occur via the import of pelts or wool of livestock. Environment and Natural Resources Research, 2 3: It prefers sandy soil. Views Read Edit View history. Distribution Maps Top of page You can pan and zoom the map. Different susceptibility of 35 species composite plants to fluazifop-butyl. Distribution is generally localized in China and Australia, and mostly sporadic in a number of countries in Africa.

Acanthospermum australe can be confused with Acanthospermum hispidum, but A.

Weeds of Australia – Biosecurity Queensland Edition Fact Sheet

Inflorescence Inflorescences are terminal and axillary. Habitat terrestrial New England state Massachusetts Specific habitat man-made or disturbed habitats. It has no hairs between the nodes. Check our website at www. The margin is irregular acantjospermum.