Nongame and Rare Species Program: Rare Plant Communities of Texas
Edwards Plateau: Riparian Shrubland
Global Rank: G3
Distribution: Texas, possibly Coahuila, Mexico
Description: Stream-scoured vegetation on periodically inundated limestone substrates in and along streams in the Edwards Plateau and Stockton Plateau. Vegetation varies from extremely open to dense. Scattered shrubs and trees can include Platanus occidentalis, Salix nigra, Juglans microcarpa, Chilopsis linearis, Baccharis neglecta, and B. salicifolia. Dominant species in the herbaceous stratum may be Panicum virgatum, Andropogon glomeratus var. pumilus, Cladium mariscus ssp. jamaicense, Fuirena simplex, and Rhynchospora colorata (= Dichromena colorata). Many other forbs and grasses may be present; commonly occurring species include Eleocharis montevidensis, E. geniculata, Solidago altissima, Eupatorium serotinum, Bothriochloa ischaemum var. songarica (exotic), Arundo donax (exotic), Polanisia dodecandra, Ratibida columnifera, Senna lindheimeriana, Indigofera lindheimeriana, and other forbs and grasses common in adjacent communities. Forbs are rooted in cracks and in soil mats.