The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Erigeron

(fleabane), a genus of plants of the family Compositae. They are perennial and, less commonly, annual or biennial grasses or subshrubs. The leaves are entire and alternate. The inflorescences are heads that are solitary at the ends of unbranched stems or are gathered into a raceme, corymb, or panicle. The ray flowers have narrow, often threadlike ligules and form two or more series. The achenes have a sessile pappus of one or two rows of brittle bristles.

There are more than 200 species of Erigeron, distributed on all continents; they are most diverse in North America. In the USSR there are more than 70 species, including the common weeds Erigeron acer and E. canadensis. These two species, which are native to North America, contain essential oils. Certain varieties of Erigeron contain tanning substances in their stems and leaves. Many species are ornamentals; hybrid perennials, such as E. speciosus, E. aurantiacus, and E. macranthus, are raised by florists as tall ornamentals. Short varieties are grown in rock gardens.

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References in periodicals archive

DELIGHTS Mentha requienii, Erigeron karvinskianus, Leptinella amongst sedums

A PATH TO GLORY; DAILY MIRROR 37 GARDEN with DIARMUID GAVIN weekend@mirror.co.uk Weekend, Daily Mirror, One Canada Square, London E14 5APSorry, Diarmuid cannot reply personally Soften hard landscaping with these plants - they're masters of disguise and even help keep weeds at bay

In this study, we conducted the greenhouse experiments to discuss whether individual- and group-based interspecific competition will affect the growth of invasive plant Erigeron annuus and two co-existing herbs (a native herb Artemisia indica and a common crop Ipomoea batatas in the farmland).

INDIVIDUAL-AND GROUP-BASED INTERSPECIFIC COMPETITION BETWEEN ALIEN INVASIVE PLANT ERIGERON ANNUUS AND TWO CO-EXISTING HERBS

(16.) Metwally AM, Saleh MRI, Aggag M, Khafagy SM, Phytochemical investigation of Erigeron crispus, Planta Med 23, 281-285, 1973.

Cytotoxic Effect of Conyza canadensis (L.) Cronquist on Human Lung Cancer Cell Lines/Conyza canadensis (L) Cronquist'in Insan Akciger Kanser Hucre Hatlari Uzerine Sitotoksik Aktivitesi

Anticoagulant and anti-platelet activity of polyphenolic-polysaccharide preparation isolated from the medicinal plant Erigeron canadensis L.

Polysaccharide extract of Mimosa tenuiflora stem barks stimulates acute inflammatory response via nitric oxide/Extrato polissacaridico oriundo das cascas do caule de Mimosa tenuiflora induz resposta inflamatoria aguda via oxido nitrico

Finalmente, lo encontrado es lo que se ha logrado determinar hasta el nivel de especie luego de haber iniciado el herborizado hace 25 anos, y es dificil aseverar que todas las especies ya estan registradas, potencialmente deben haber aun mas especialmente en los siguientes generos; Ageratina, Erigeron, Hypochaeris, Mniodes, Perezia.

Las Asteraceas (Compositae) del distrito de Laraos (Yauyos, Lima, Peru)

Here, apart from researched species, the following were recognized: Erigeron annuss, Datura stramonium, Lycopersicon esculentum and moss.

Potentially toxic elements in soils and plants on a reclaimed coal-waste dump in Southern Poland (preliminary study)

virginicus, Eragrostis hypnoides, Erigeron annuus, Helenium autumnale, Humulus japonicus (abundant), Ludwigia palustris, Lycopus americanus, Lysimachia nummularia, Mimulus alatus, Myosotis scopioides, Oenothera biennis, Persicaria maculosa, Phalaris arundinacea (especially along the shoreline at the northern fifth of the property), Pilea pumila, Plantago rugelii, Polanisia dodecandra, Rorippa sylvestris, Scutellaria lateriflora, Solidago gigantea, Symphyotrichum prenanthoides, Verbena hastata, V.

The vascular flora and plant communities of Holthouse Woods Nature Preserve in Wayne County, Indiana

The poem becomes our narrator's way of sorting through multiple identities: "Alexa was me / The wild grass was me / I was Alexa /I was the wild grass / We were exactly alike, just like Erigeron Canadensis and Conyza sumatrensis." The scientific brevity of taxonomies cannot capture the complicated histories of a person, let alone a community.

Hiromi Ito, Wild Grass on the Riverbank

Remy, Cotoneaster x wateren Exell en Erigeron karvinskianus DC., nieuw voor de Belgische flora in Kortrijk.

Contribucion al conocimiento de la flora aloctona de Galicia (NO Peninsula Iberica, Espana)

Species introduced as ornamentals or forage species that have escaped cultivation in California include, left, Mexican daisy (Erigeron karvinskianus), Japanese honeysuckle (Lonicera japonica), buffelgrass (Pennisetum ciliare) and African daisy (Osteospermum ecklonis).

Predicting invasive plants in California

Adult butterflies spend most of their lives in the forest canopy, but may be found puddling/mineralizing on moist hardtack and nectaring on flowers of Erigeron spp.

Photodocumentation of Erora laeta Early Hairstreak (Lycaenidae) in Jackson County, AL