TexasInvasives.Org ONLINE DATABASE. The database includes 137 species known to occur in or around Texas and suspected of causing invasive problems. For each species there is an illustrated plant description, ecological information, distribution & habitat, history of introduction, reproduction, management approaches, and other useful information.
Prohibited Exotic Species (Texas Parks & Wildlife Department)
"In order to manage and conserve our natural resources, Texas Parks and Wildlife Department must protect our state waters against the introduction of non-native aquatic species. Fish, shellfish, and aquatic plants that are not native to Texas may compete with native animals and plants for food and space. The organisms listed on this page are legally classified as exotic, harmful, or potentially harmful. No person may import, possess, sell, or place them into water of this state except as authorized by rule or permit issued by the department." All are aquatic plants. [List downloaded 3 Feb 2008. All taxa included in the TexasInvasives.Org database.]
* Alternanthera philoxeroides Alligatorweed [Amaranthaceae]
* Eichhornia crassipes Floating waterhyacinth [Pontederiaceae]
* Eichhornia azurea Rooted waterhyacinth [Pontederiaceae]
* Hydrilla verticillata Hydrilla [Hydrocharitaceae]
* Ipomoea aquatica Water Spinach [Convolvulaceae]
* Lagarosiphon major Lagarosiphon [Hydrocharitaceae]
* Landoltia punctata (= Spirodela oligorhiza) Giant Duckweed [Lemnaceae]
* Limnophila sessiliflora Ambulia [Scrophulariaceae]
* Lythrum salicaria Purple Loosestrife [Lythraceae]
* Melaleuca quinquenervia Paperbark [Myrtaceae]
* Monochoria hastata Narrowleaf False Pickerelweed [Pontederiaceae]
* Monochoria vaginalis Heartshaped False Pickerelweed [Pontederiaceae]
* Myriophyllum spicatum Eurasian Watermilfoil [Haloragaceae]
* Ottelia alismoides Duck-lettuce [Hydrocharitaceae ]
* Panicum repens Torpedograss [Poaceae]
* Pistia stratiotes Waterlettuce [Araceae]
* Salvinia all species Salvinia [Salviniaceae]
* Schinus terebinthifolius Brazilian Peppertree [Anacardiaceae]
* Solanum tampicense Wetland Nightshade [Solanaceae]
* Sparganium erectum Exotic Bur-reed [Sparganiaceae]
Noxious Weed List (Texas Department of Agriculture) USDA site
Texas Administrative Code. 2005. Quarantines and noxious plants, Chapter 19 (24 May 2006). State of Texas. [List downloaded 3 Feb 2008. All taxa included in the TexasInvasives.Org database.]
* Alhagi maurorum Medik. (= Alhagi camelorum Fisch.) Camelthorn [Fabaceae]
* Alternanthera philoxeroides (Mart.) Griseb. Alligatorweed [Amaranthaceae]
* Arundo donax L. Giant reed [Poaceae]
* Calystegia sepium (L.) R. Br. Hedge bindweed [Convolvulaceae]
* Cardiospermum halicacabum L. Balloonvine [Sapindaceae]
* Convolvulus arvensis L. Field bindweed [Convolvulaceae]
* Cuscuta japonica Choisy Japanese dodder [Cuscutaceae]
* Eichhornia azurea (Sw.) Kunth Rooted waterhyacinth [Pontederiaceae]
* Eichhornia crassipes (Mart.) Solms Floating waterhyacinth [Pontederiaceae]
* Hydrilla verticillata (L. f.) Royle Hydrilla [Hydrocharitaceae]
* Ipomoea aquatica Forssk. Water spinach [Convolvulaceae]
* Lagarosiphon major (Ridley) Moss Lagarosiphon [Hydrocharitaceae]
* Landoltia punctata (G. Mey.) D.H. Les & D.J. Crawford (= Spirodela oligorrhiza) Giant duckweed [Lemnaceae]
* Lythrum salicaria L. Purple loosestrife [Lythraceae]
* Melaleuca quinquenervia (Cav.) S.F. Blake Paperbark [Myrtaceae]
* Myriophyllum spicatum L. Eurasian watermilfoil [Haloragaceae]
* Nassella trichotoma (Nees) Hack. Serrated tussock [Poaceae]
* Orobanche ramosa L. Branched broomrape [Orobanchaceae]
* Panicum repens L. Torpedograss [Poaceae]
* Pistia stratiotes L. Waterlettuce [Araceae]
* Pueraria montana var. lobata (Willd.) Maesen & S. Almeida (= Pueraria lobata (Willd.) Ohwi) Kudzu [Fabaceae]
* Rottboellia cochinchinensis (Lour.) W.D. Clayton Itchgrass [Poaceae]
* Salvinia Ség. all species Salvinia [Salviniaceae]
* Schinus terebinthifolius Raddi Brazilian peppertree [Anacardiaceae]
* Solanum viarum Dunal Tropical soda apple [Solanaceae]
* Tamarix L. Saltcedar [Tamaricaceae]
* Triadica sebifera (L.) Small (= Sapium sebiferum (L.) Roxb.) Chinese tallow tree [Euphorbiaceae]
Unwanted Alien Plants on the Door Step of Texas. Texas Forest Service.
Photos and a brief overview of biology for 12 non-native noxious plants threatening Texas. [pdf slow to load]
* Ampelopsis brevipedunculata Porcelain Berry [Vitaceae]
* Celastrus orbiculatus Oriental Bittersweet [Celastraceae]
* Cuscuta japonica Giant Asian Dodder [Cuscutaceae]
* Dioscorea bulbifera Climbing Yam [Dioscoreaceae]
* Imperata cylindrica Cogongrass [Poaceae]
* Lygodium japonicum Japanese Climbing Fern [Lygodiaceae]
* Microstegium vinimeum Nepalese Browntop [Poaceae]
* Miscanthus sinensis Chinese Silvergrass [Poaceae]
* Polygonum cuspidatum Japanese Knotweed [Polygonaceae]
* Pueraria montana Kudzu [Fabaceae]
* Rosa multiflora Multiflora Rose [Rosaceae]
* Solanum viarum Tropical Soda Apple [Solanaceae]
Federal Noxious Weed List US Dept. of Agriculture (as of June 30, 2006)
List of 164 taxa, divided into three categories: Aquatic/Wetland, Parasitic, Terrestrial. Most native North American species of Cuscuta are included (probably in an attempt to list them all), but they are neither invasive nor noxious.
