Lobelia siphilitica


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Related to Lobelia siphilitica: Lobelia cardinalis
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Noun1.Lobelia siphilitica - tall erect and very leafy perennial herb of eastern North America having dense spikes of blue flowersLobelia siphilitica - tall erect and very leafy perennial herb of eastern North America having dense spikes of blue flowers
lobelia - any plant or flower of the genus Lobelia
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References in periodicals archive ?
The subsurface recirculating vertical flow constructed wetland (RVFCW) utilized a timer to apply pretreated sewage over the entire top bed area planted with wetland flowering plants, such as water iris (Iris virginica), swamp milkweed (Asclepias incarnata), great blue lobelia (Lobelia siphilitica), and New England aster (Aster novae-angliae) with a density of about four plants per square meter.
The pond in the bog garden is now much larger than normal, covering the borders on both sides, but there is still quite a bit of colour, especially from the blue late-flowering Lobelia siphilitica, which started as a small clump several years ago and has now spread all over the front of the east borders.
Only a few species, however, have consistently been found in nearly all seeps examined, including Agrostis gigantea (red top), Aster lateriflorus (side-flowering aster), Carex lurida (lurid sedge), Equisetum arvense (common horsetail), Eupatorium perfoliatum (perfoliate bone set), Glyceria striata (fowl manna grass), Impatiens capensis, Leersia virginica (white grass), Mimulus ringens (sessile monkey flower), Lobelia siphilitica (great blue lobelia), and Pilea pumila (clearweed).