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Rare, Endangered and Threatened plants of Saline Prairies\ by Jason Singhurst May 17, 2013 TORCH Saline Prairies Conference, East Texas Natural History Collection, Hawkins, Texas
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Why are Arkansas, Louisiana, and Texas scientists interested in saline prairies? 1. Globally rare plants, endemics, and peripherals plant species 2. Plant communities are globally rare
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Saline Prairies Physical Setting, Geology, and Soils 1.Fluvial terraces adjacent to active floodplains 2.Soils formed on loamy late Pleistocene sediments 3.In Louisiana and Texas the soil series include Bonn, Brimstone and Lafe Saline Prairie General Appearance 1.Short to medium in height grass canopy 2.Density of grasses is variable but usually sparse 3.Broad flats and wet depressions 4.Slicks that are devoid of vegetation (natric horizon that is characterized by high levels of exchangeable Na – often associated with arid or semi-arid environments) 5.Cryptogramic crust composed of algae, mosses, and lichens
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Saline Prairie Flats and Pimple Mounds
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Saline Prairie Wet Depressions
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Saline Prairie Distribution in the West Gulf Costal Plain
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Saline Prairies Plant Communities Bottomland Prairies Plantago pusilla - Sporobolus pyramidatus - Phemeranthus parviflorus –Cleomella angustifolia (Sedum nuttallianum) Association (Keith et al.2004) Silveus Dropseed Prairies Plantago hybrida - Sporobolus pyramindatus - Iva angustifolia - Phemeranthus parviflorus (Hymenoxys perpygmaea ) Association (Mink et al. 2012) Coastal Prairies Sporobolus pyramidatus – Spergularia echinosperma – Iva angustifolia – Hymenoxys texana – (Thurovia triflora) (Singhurst et al. – unpublished ms)
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Anderson Saline Prairie
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Earth-fruit on cryptogramic soils
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Earth-fruit
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Wright’s lily
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narrowleaf rhombopod
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Big Cypress Bayou Prairie a
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Caddo Lake State Park
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Joy Global Prairie
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Texas prairie dawn
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Earth-fruit
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Texas saltbush
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Horton Prairie
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McLeod Prairie
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Warren Prairie
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Texas prairie dawn
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yellow hedgehyssop
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Jack Road Prairie
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Texas windmill grass
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Hitchcock Prairie
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Houston daisy
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Prairie Dawn Preserve
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Nash Prairie
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coastal gayfeather
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Falcon Point Ranch
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threeflower broomweed
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San Saba pinweed
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Gambil Goose Prairie
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pygmy prairie dawn
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Smith Prairie
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Cherokee Prairie
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Midway Prairie
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Jason Singhurst Texas Parks & Wildlife 512-389-8726 jason.singhurst@tpwd.state.tx.us
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