This table lists all species profiled on PIER with the growth habit = "aquaticherb". An alphabetical index to all PIER species is also available. It includes those of environmental concern (including those that are probably of threat only to islands with high elevations) as well as agricultural and ruderal weeds. Each species is linked by its scientific name to an individual write-up containing relevant information.
Species are listed in alphabetic order. You can browse this list or use the "find" function on your web browser to search by scientific name.
Can't find it here? Check the list of synonyms for other names (the more common synonyms are included below) or search other lists and databases available on the Internet.
Stumped by botanical terms? Here are links to a brief glossary and a search engine for botanical terms.
| Scientific name (+Family) | Often-used other Latin names | Habit |
Present on
Pacific Islands? |
Primarily a threat
at high elevations? |
| Callitriche lechleri (Plantaginaceae) | Callitriche marginata var. lecheri Hegelm. | aquatic herb | Yes | No |
| Ceratophyllum demersum (Ceratophyllaceae) | aquatic herb | Yes | No | |
| Egeria densa (Hydrocharitaceae) | Elodea densa (Planch.) Casp. | aquatic herb | Yes | No |
| Eichhornia crassipes (Pontederiaceae) | aquatic herb | Yes | No | |
| Heteranthera reniformis (Pontederiaceae) | aquatic herb | Yes | No | |
| Hydrilla verticillata (Hydrocharitaceae) | aquatic herb | Yes | No | |
| Hydrolea zeylanica (Hydroleaceae) | Nama zeylanica L. | aquatic herb | No | No |
| Hygrophila costata (Acanthaceae) | Hygrophila brasiliensis (Spreng.) Lindau; Hygrophila guianensis Nees.; Ruellia brasiliensis Spreng. | aquatic herb | No | No |
| Hygrophila polysperma (Acanthaceae) | aquatic herb | No | No | |
| Ipomoea aquatica (Convolvulaceae) | Ipomoea reptans Poir. | aquatic herb | Yes | No |
| Lagarosiphon major (Hydrocharitaceae) | aquatic herb | No | No | |
| Lemna spp. (Araceae) | aquatic herb | Yes | No | |
| Limnocharis flava (Alismataceae) | Alisma flavum L.; Limnocharis emarginata Humb. & Bonpl. | aquatic herb | No | No |
| Ludwigia adscendens (Onagraceae) | Jussiaea adscendens L.; Jussiaea repens L. | aquatic herb | No | No |
| Ludwigia sedoides (Onagraceae) | aquatic herb | Yes | No | |
| Mentha aquatica (Lamiaceae) | Mentha citrata Ehrh.; Mentha palustris Mill. | aquatic herb | Yes | Yes |
| Monochoria hastata (Pontederiaceae) | aquatic herb | Yes | No | |
| Monochoria vaginalis (Pontederiaceae) | Pontederia vaginalis Burm. f. | aquatic herb | Yes | No |
| Myriophyllum aquaticum (Haloragaceae) | Enydria aquatica Vell.; Myriophyllum brasiliense Cambess. | aquatic herb | Yes | No |
| Myriophyllum spicatum (Haloragaceae) | aquatic herb | No | No | |
| Najas graminea (Hydrocharitaceae) | aquatic herb | Yes | No | |
| Najas guadalupensis (Hydrocharitaceae) | Caulinia guadalupensis Spreng. | aquatic herb | Yes | No |
| Najas marina (Hydrocharitaceae) | aquatic herb | No | No | |
| Nelumbo nucifera (Nelumbonaceae) | Nelumbo speciosa Willd. | aquatic herb | Yes | No |
| Neptunia oleracea (Fabaceae) | Neptunia natans auct.; Neptunia prostrata auct. | aquatic herb | Yes | No |
| Neptunia plena (Fabaceae) | Mimosa plena L. | aquatic herb | No | No |
| Nymphaea spp. (Nymphaeaceae) | aquatic herb | Yes | No | |
| Ottelia alismoides (Hydrocharitaceae) | Stratiotes alismoides L. | aquatic herb | No | No |
| Ottelia ovalifolia (Hydrocharitaceae) | Damasonium ovalifolium R. Br. | aquatic herb | Yes | No |
| Pistia stratiotes (Araceae) | aquatic herb | Yes | No | |
| Potamogeton crispus (Potamogetonaceae) | aquatic herb | Yes | No | |
| Rotala indica (Lythraceae) | Peplis indica Willd. | aquatic herb | No | No |
| Rotala rotundifolia (Lythraceae) | Ammannia rotundifolia Buch.-Ham. ex Roxb. | aquatic herb | No | No |
| Sagittaria latifolia (Alismataceae) | aquatic herb | Yes | No | |
| Sagittaria platyphylla (Alismataceae) | Sagittaria graminea var. platyphylla Michx.; Sagittaria mohrii J. G. Sm.; Sagittaria recurva Engelm. ex Patt.; Sagittaria weatherbiana Fernald | aquatic herb | Yes | No |
| Solanum tampicense (Solanaceae) | Solanum houstonii Dunal | aquatic herb | No | No |
| Spirodela polyrhiza (Araceae) | aquatic herb | Yes | No | |
| Stuckenia pectinata (Potamogetonaceae) | Potamogeton pectinatus L. | aquatic herb | Yes | No |
| Typha latifolia (Typhaceae) | aquatic herb | Yes | No | |
| Vallisneria americana (Hydrocharitaceae) | Vallisneria gigantea Graebn. | aquatic herb | Yes | No |
| Vallisneria spiralis (Hydrocharitaceae) | aquatic herb | Yes | No |