Name:
Euthamia leptocephala - Helianthus angustifolius - Boltonia asteroides - Spartina patens Herbaceous Vegetation
Reference:
Southeastern Ecology Working Gro...
Description:
This is a very specialized coastal prairie type, occupying low Pleistocene Prairie Terrace exposures within or adjacent to fresh marsh zones in the far southern range of coastal prairie in Louisiana. Very few examples remain, but the best of this type represents the highest quality remaining coastal prairie of any type in the state. The examples observed possess pimple mounds, and there are floristic differences between the mounds and intermound areas; however, this variation is lumped for now into a single type. The remnants of this type that have been observed support a broad diversity of species. It is unique in the prevalence of <i>Spartina patens</i> and other species when compared to other coastal prairie types. In addition to the nominals, some species present include <i>Acmella oppositifolia var. repens (= Spilanthes americana), Agrostis hyemalis, Amsonia tabernaemontana, Andropogon glomeratus, Asclepias lanceolata, Asclepias viridis, Bacopa caroliniana, Centella erecta, Coelorachis rugosa, Coreopsis tinctoria, Cyperus cephalanthus</i> (rarely), <i>Eleocharis quadrangulata, Eriochloa punctata, Eupatorium serotinum, Eryngium yuccifolium, Fimbristylis littoralis (= Fimbristylis miliacea), Gaura lindheimeri, Hibiscus moscheutos ssp. lasiocarpos, Hydrolea ovata, Hyptis alata, Hymenocallis liriosme, Ipomoea sagittata, Iva angustifolia, Juncus roemerianus, Leersia hexandra, Lycopus rubellus, Lythrum lineare, Neptunia lutea, Oenothera drummondii, Panicum hemitomon, Panicum virgatum, Paspalum floridanum, Paspalum plicatulum, Polygala leptocaulis, Ratibida peduncularis, Rhexia mariana, Rhynchospora colorata, Rhynchospora globularis, Rhynchospora macrostachya, Rhynchospora microcarpa, Rhynchospora nitens, Rubus trivialis, Sabatia angularis, Solidago sempervirens var. mexicana, Tradescantia hirsutiflora, Tridens strictus</i>, and <i>Vernonia gigantea</i>. The soils of this prairie type have not been closely analyzed. The coastal prairie zone of southwestern Louisiana has become very seriously infested with <i>Triadica sebifera (= Sapium sebiferum)</i> (Chinese tallow tree), which in many places has formed dense thickets and forests. It quickly comes to dominate fallow pastures and fields. Historically, upland coastal prairie was maintained by frequent burning and soil conditions generally inhospitable to the growth of trees and shrubs.
Accession Code:
VB.CC.35849.CEGL007936
Plot-observations of this Community Concept:
0
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