Name:
A.1815
Reference:
EcoArt 2002
Description:
This alliance consists of calcareous (limestone and dolostone) and mafic (diabase) glades dominated by the annual grasses ~Sporobolus neglectus, Sporobolus vaginiflorus var. vaginiflorus$, and/or ~Sporobolus vaginiflorus var. ozarkanus (= Sporobolus ozarkanus)$. Other annual grasses and forbs are often prominent, as well. In Arkansas, associated species include ~Penstemon cobaea, Echinacea simulata, Echinacea pallida, Echinacea paradoxa var. paradoxa$, and ~Lithospermum canescens$. In Tennessee, some of the co-occurring perennial forbs are the endemic or near-endemic ~Dalea gattingeri$ and ~Pediomelum subacaule$, along with ~Croton capitatus, Grindelia lanceolata, Hedyotis nigricans, Heliotropium tenellum, Isanthus brachiatus, Manfreda virginica$, and ~Ruellia humilis$. A zonal component of Arkansas Upper West Gulf Coastal Plain Nepheline Syenite glades is also placed here. This vegetation is dominated by early flowering species that complete their life cycles before the glades dry up in the early summer, as well as fall-flowering annual grasses (e.g., ~Sporobolus clandestinus$). These species include ~Amsonia ciliata var. ciliata, Astragalus distortus (var. engelmannii, var. distortus), Clinopodium arkansanum (= Calamintha arkansana), Cheilanthes lanosa, Chamaesyce missurica (= Euphorbia missurica), Oenothera linifolia, Phacelia hirsuta, Plantago pusilla, Sabatia campestris, Salvia azurea, Schizachyrium scoparium, Sporobolus clandestinus, Talinum calycinum, Cladonia$ spp. (lichens), ~Grimmia$ spp. (mosses), and ~Nostoc$ spp. (blue-green algae).
Accession Code:
VB.CC.1517.A1815
Plot-observations of this Community Concept:
0
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