Erigeron


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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.

References in periodicals archive ?
Metal concentrations of Cd, Cu, and Zn in Erigeron canadensis and Artemisia annua are higher and close to those in the soils.
The findings from this study provide data on the tolerability and pharmacokinetics of the extract from Erigeron breviscapus and support further trials.
Separation and purification of two flavone glucuronides from Erigeron multiradiatus (Lindl.
On species of the genera Aster, Conyza and Erigeron, and recorded in provinces in eastern Canada and in states of northeastern USA.
Erigeron glaucus native to California and the Oregon coast.
3 Erigeron modestus -- -- -- -- -- -- Melampodium leucanthum -- -- 0 0 0.
Sidalcea, Rudbeckia, Geranium, Achillea, Erigeron, Lonicera, Hydrangea, Solidago, Cotoneaster, Cynoglossum, Scabious, Anchusa, Lavendula, Origanum, Lythrum, Helenium, Thymus, Veronica and Hebe, Viburnum, Syringa, Fragaria, Rubus, Ligustrum, Potentilla, .
PULL out weeds growing between the slabs on patios - or soften the hard lines of a large paved area by planting up the cracks and crevices with thyme or erigeron.
Seeds were placed in the following order heading away from the colony: Ratibida pinnata (Vent) (Asteraceae), Erigeron sp.
Rock plants: Armeria maritima, aubrieta, dianthus alpinus, phlox subulata, stachys, osteospermum jucundum, erigeron karvinskianus, Iris pumila.
If you do not want wildflowers but prefer more traditional garden plants then there are still plenty to choose from such as the iceplants (sedum), buddleia (commonly known as the butterfly bush), heliotrope (cherry pie), lavender, valerian, primroses, aubrieta, scabious, African marigold, annual phlox, poached egg plant, candytuft, Michaelmas daisies and Erigeron.