Ageratina altissima

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Ageratina altissima
Insert.jpg
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Order: Asterales
Family: Asteraceae ⁄ Compositae
Genus: Ageratina
Species: A. altissima
Binomial name
Ageratina altissima
(Chapm.) Pennell
AGER ALTI dist.jpg
Natural range of Ageratina altissima from USDA NRCS Plants Database.

Description

Distribution

Ecology

Ageratina altissima competes by allelopathy. Corbett and Morrison found out that aqueous extracts from roots and especially shoots decreased the rate of germination, percentage of germination, and size of germinated Lettuce and Radish seeds in Petri dishes as well as in pots of forest soil. [1]

Habitat

It grows in shady to partially shady areas. It is common in the eastern deciduous forest herb layer. [1]However, it can also be found in woods, thickets, roadsides, old fields, clearings, bluffs and margins of waterways.Cite error: Closing </ref> missing for <ref> tag

Seed bank and germination

Ageratina altissima usually needs light to germinate. Ageratina altissima exhibits a Type II response to stratification: Germination in the spring generally can occur at a lower temperature than germination in the fall as a result of dormancy loss in the winter. Thus, germination in the spring is more likely because of relatively higher temperatures and lower temperature requirements than in fall. [2]

Fire ecology

It is most abundant after a late-season (early October) burn. [3]

Pollination

Use by animals

It is avoided by many insects. [1]

Diseases and parasites

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 Corbett, B. F. and J. A. Morrison (2012). "The allelopathic potentials of the non-native invasive plant Microstegium vimineum and the native Ageratina altissima: two dominant species of the eastern forest herb layer." Northeastern Naturalist 19: 297-312.
  2. Walck, J. L., C. C. Baskin, et al. (1997). "Comparative achene germination requirements of the rockhouse endemic Ageratina luciae-brauniae and its widespread close relative A. altissima (Asteraceae)." American Midland Naturalist 137: 1-12.
  3. Pavlovic, N. B., S. A. Leicht-Young, et al. (2011). "Short-term effects of burn season on flowering phenology of savanna plants." Plant Ecology 212: 611-625.