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Quiet Invasion: Invasive Plants & Animals of the Houston Galveston Region & Upper Texas Coast

The species listed in this field guide are identified by the Houston Advanced Research Center (HARCresearch.org) as current or potential invasive species (plants and animals) in the Houston-Galveston region, Lower Galveston Bay Watershed and Upper Texas Coast. For more information, visit ...more ↓

All 111
Invasive or native
Invasive 111

air potato ¹
Dioscorea bulbifera

Italian Ryegrass ²
Lolium multiflorum

Bahia grass ³
Paspalum notatum

Cogon Grass ⁴
Imperata cylindrica

Common Water Hyacinth ⁵
Eichhornia crassipes

anchored water hyacinth ⁶
Eichhornia azurea

Deep-Rooted Sedge ⁷
Cyperus entrerianus

Taro ⁸
Colocasia esculenta

Spirodela oligorrhiza

giant reed ²
Arundo donax

fishpole bamboo ⁹
Phyllostachys aurea

guinea grass ¹⁰
Urochloa maxima

Hydrilla ¹¹
Hydrilla verticillata

Johnson grass ¹²
Sorghum halepense

Sheda Grass ²
Dichanthium annulatum

Angleton Bluestem ¹³
Dichanthium aristatum

Bothriochloa ischaemum var. songarica
Bothriochloa ischaemum songarica

Pampas Grass ¹⁴
Cortaderia selloana

Nassella Tussock ¹⁵
Nassella trichotoma

Torpedo grass ¹⁶
Panicum repens

Vasey Grass ¹⁷
Paspalum urvillei

Water Lettuce ¹⁸
Pistia stratiotes

Edited by Lisa Gonzalez and HARC-Houston Advanced Research Center, some rights reserved (CC BY-SA)

Photo Credits

1. (c) 106611639464075912591, some rights reserved (CC BY-NC-SA), uploaded by 106611639464075912591
2. (c) Harry Rose, some rights reserved (CC BY)
3. (c) Sunnetchan, some rights reserved (CC BY-NC-SA), uploaded by Sunnetchan
4. (c) Michael P. Riggs, some rights reserved (CC BY-NC), uploaded by Michael P. Riggs
5. (c) Gustavo DurÃ¡n, some rights reserved (CC BY-NC-SA)
6. (c) Smithsonian Institution, National Museum of Natural History, Department of Botany, some rights reserved (CC BY-NC-SA)
7. (c) Cullen Hanks, some rights reserved (CC BY-NC), uploaded by Cullen Hanks
8. (c) Bob O'Kennon, some rights reserved (CC BY-NC), uploaded by Bob O'Kennon
9. (c) KENPEI, some rights reserved (CC BY-SA)
10. (c) WMPann, some rights reserved (CC BY)
11. (c) Reinaldo Aguilar, some rights reserved (CC BY-NC-SA)
12. (c) the weed one, some rights reserved (CC BY-NC-SA)
13. (c) Anna Livia Singer, some rights reserved (CC BY-NC-ND), uploaded by Anna Livia Singer
14. (c) Hindrik Sijens, some rights reserved (CC BY-NC-SA)
15. (c) Jon Sullivan, some rights reserved (CC BY)
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17. (c) Bart Wursten, some rights reserved (CC BY-NC)
18. (c) Mary Keim, some rights reserved (CC BY-NC-SA)

Quiet Invasion: Invasive Plants & Animals of the Houston Galveston Region & Upper Texas Coast

air potato 1 Dioscorea bulbifera

Italian Ryegrass 2 Lolium multiflorum

Bahia grass 3 Paspalum notatum

Cogon Grass 4 Imperata cylindrica

Common Water Hyacinth 5 Eichhornia crassipes

anchored water hyacinth 6 Eichhornia azurea

Deep-Rooted Sedge 7 Cyperus entrerianus

Taro 8 Colocasia esculenta

Spirodela oligorrhiza

giant reed 2 Arundo donax

fishpole bamboo 9 Phyllostachys aurea

guinea grass 10 Urochloa maxima

Hydrilla 11 Hydrilla verticillata

Johnson grass 12 Sorghum halepense

Sheda Grass 2 Dichanthium annulatum

Angleton Bluestem 13 Dichanthium aristatum

Bothriochloa ischaemum var. songarica Bothriochloa ischaemum songarica

Pampas Grass 14 Cortaderia selloana

Nassella Tussock 15 Nassella trichotoma

Torpedo grass 16 Panicum repens

Vasey Grass 17 Paspalum urvillei

Water Lettuce 18 Pistia stratiotes