Plantae > Tracheophyta > Magnoliopsida > Asterales > Asteraceae > Erigeron > Erigeron canadensis

Erigeron canadensis (Horseweed)

Synonyms:

Wikipedia Abstract

Erigeron canadensis (synonym Conyza canadensis) is an annual plant native throughout most of North America and Central America. It is also widely naturalized in Eurasia and Australia. Common names include horseweed, Canadian horseweed, Canadian fleabane, coltstail, marestail and butterweed. It was the first weed to have developed glyphosate resistance, reported in 2001 from Delaware.
View Wikipedia Record: Erigeron canadensis

Attributes

Allergen Potential [1]  Medium
Screening - Summer [3]  Porous
Screening - Winter [3]  Porous
Bee Flower Color [2]  Blue-Green
Flower Color [3]  White
Foliage Color [3]  Green
Fruit Color [3]  Brown
Bloom Period [3]  Indeterminate
Dispersal Mode [6]  Anemochory
Drought Tolerance [3]  Low
Edible [4]  May be edible. See the Plants For A Future link below for details.
Fire Tolerance [3]  Low
Flower Type [4]  Hermaphrodite
Frost Free Days [3]  60 days
Fruit/Seed Abundance [3]  High
Growth Form [3]  Single Crown
Growth Period [3]  Spring, Summer, Fall
Growth Rate [3]  Rapid
Hazards [4]  Skin contact with the plant can cause dermatitis in some people;
Leaf Type [3]  Deciduous
Lifespan [4]  Annual
Pollinators [4]  Bees, Flies
Propagation [3]  Seed
Regrowth Rate [3]  Slow
Root Depth [3]  6 inches (15 cm)
Seed Spread Rate [3]  Rapid
Seed Vigor [3]  High
Seeds Per [3]  699999 / lb (1543234 / kg)
Shape/Orientation [3]  Erect
Structure [7]  Herb
Usage [4]  The plant contains small quantities of essential oil; Since the plant is readily obtainable, extraction of the oil is feasible - it has a special quality that would make it suitable in the making of perfumes with unusual nuances;
Vegetative Spread Rate [3]  None
Flower Conspicuous [3]  Yes
Height [4]  39 inches (1 m)
Width [4]  20 inches (0.5 m)
Hardiness Zone Minimum [3]  USDA Zone: 12 Low Temperature: 50 F° (10 C°) → 55 F° (12.8 C°)
Light Preference [5]  Mostly Sunny
Soil Acidity [5]  Neutral
Soil Fertility [5]  Intermediate
Soil Moisture [5]  Mostly Dry
Water Use [3]  Moderate
View Plants For A Future Record : Erigeron canadensis

Protected Areas

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Ecosystems

Predators

Providers

Consumers

Parasitized by 
Basidiophora entospora[10]
Podosphaera fusca[10]

External References

USDA Plant Profile

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
♦ 2Arnold SEJ, Faruq S, Savolainen V, McOwan PW, Chittka L, 2010 FReD: The Floral Reflectance Database — A Web Portal for Analyses of Flower Colour. PLoS ONE 5(12): e14287.
♦ 3USDA Plants Database, U. S. Department of Agriculture
♦ 4Plants For A Future licensed under a Creative Commons Attribution 4.0 License
♦ 5ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
♦ 6Paula S, Arianoutsou M, Kazanis D, Tavsanoglu Ç, Lloret F, Buhk C, Ojeda F, Luna B, Moreno JM, Rodrigo A, Espelta JM, Palacio S, Fernández-Santos B, Fernandes PM, and Pausas JG. 2009. Fire-related traits for plant species of the Mediterranean Basin. Ecology 90: 1420.
Paula S. & Pausas J.G. 2013. BROT: a plant trait database for Mediterranean Basin species. Version 2013.06.
♦ 7Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ 8Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet 4 November 2009
♦ 9Biological Records Centre Database of Insects and their Food Plants
♦ 10Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0