Taxon Report
Wolffia brasiliensis Wedd.Brazilian watermeal |
 © 2021 Scot Loring |
Taxon Summary
Wolffia brasiliensis, commonly known as Brazilian watermeal, is a perennial herb (aquatic) in the Araceae that is found in California and elsewhere. It occurs within Marshes and swamps, growing at elevations from 20 to 100 meters. Wolffia brasiliensis is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.Classification
|
Scientific Name: |
Wolffia brasiliensis Wedd. |
|
Common Name: |
Brazilian watermeal |
| Family: | Araceae |
| Element Code: | PMLEM03020 |
| USDA Plants Symbol: | WOBR |
|
Synonyms/Other Names: |
|
Ecology and Life History
| Lifeform: | perennial herb (aquatic) |
| Blooming Period: Apr-Dec | Apr-Dec |
| Elevation: | 20-100 (65-330) |
| General Habitats: | Marshes and swamps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.3 |
| Global Rank: | G5 |
|
State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
|
CRPR Changes: |
|
Occurrence Data from the CNDDB
| Total Occurrences: | 6 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 1 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 5 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Butte (BUT), Glenn (GLE), Sutter (SUT), Yuba (YUB) | |
| Quads: Name (Quad Code) | |
| Camp Far West (3912113), Hamilton City (3912261), Llano Seco (3912158), Ord Ferry (3912168), Pennington (3912137) | |
Threat List Data from the CNDDB
| Threat List Total: | 2 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 33 % | |
| Altered flood/tidal/hydrologic regime | 1 | 16% |
| Waterway bank protection/maintenance | 1 | 16% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 November 2025].