Taxon Report
Juncus nodosus L.knotted rush |
 © 2005 James M. Andre |
Taxon Summary
Juncus nodosus, commonly known as knotted rush, is a perennial rhizomatous herb in the Juncaceae that is found in California and elsewhere. It occurs within Marshes and swamps (lake margins), and Meadows and seeps (mesic), growing at elevations from 30 to 1980 meters. Juncus nodosus is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.Classification
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Scientific Name: |
Juncus nodosus L. |
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Common Name: |
knotted rush |
| Family: | Juncaceae |
| Element Code: | PMJUN01210 |
| USDA Plants Symbol: | JUNO2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial rhizomatous herb |
| Blooming Period: Jul-Sep | Jul-Sep |
| Elevation: | 30-1980 (100-6495) |
| General Habitats: | Marshes and swamps, Meadows and seeps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.3 |
| Global Rank: | G5 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | IUCN_LC |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 12 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 12 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Inyo (INY), San Bernardino (SBD) | |
| Quads: Name (Quad Code) | |
| Bighorn Basin (3411576), Clark Mtn. (3511555), Columbia Mtn. (3511514), Deep Springs Lake (3711831), Emigrant Pass (3611732), Furnace Creek (3611647), Mescal Range (3511545), Mount San Antonio (3411736), Nevares Peak (3611657), Old Woman Statue (3411552), Painted Rock Wash (3411551), Van Winkle Spring (3411575) | |
Threat List Data from the CNDDB
| Threat List Total: | 1 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 1 | 8 % | |
| Altered flood/tidal/hydrologic regime | 1 | 8% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 28 January 2025].