Juncaceae
Needlegrass rush
Juncus roemerianus
- Family
- Juncaceae
- Genus
- Juncus
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Common names
By language (2)
- Chinese
- 黑燈心草
- English
- Needlegrass rush
Flowers
- In flower
- March to April (from 11 flowering iNaturalist observations worldwide)
- Flower colour
- green (USDA PLANTS Database)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
Photo: Tom Field, CC BY 4.0, from iNaturalist 
Photo: Daderot, CC0, from Wikimedia Commons Photo: david_deguzman11, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: Athena Philips, CC BY 4.0, from iNaturalist 
Photo: Lauren McLaurin, CC BY 4.0, from iNaturalist 
Photo: Bob Miller, CC BY 4.0, from iNaturalist 
Photo: Tom Field, CC BY 4.0, from iNaturalist 
Photo: Alan Weakley, CC0, from iNaturalist 
Photo: Jessica, CC BY 4.0, from iNaturalist 
Photo: Jessica, CC BY 4.0, from iNaturalist 
Photo: Tom Field, CC BY 4.0, from iNaturalist 
Photo: Sinéad Tuttle-Lerner, CC BY 4.0, from iNaturalist
More in Juncus
- Common rushJuncus effususJuncaceae
- Toad rushJuncus bufoniusJuncaceae
- Compact rushJuncus conglomeratusJuncaceae
- Jointed rushJuncus articulatusJuncaceae
- Saltmarsh rushJuncus gerardiJuncaceae
- Spiny rushJuncus acutusJuncaceae
- Baltic rushJuncus balticusJuncaceae
- Poverty rushJuncus tenuisJuncaceae
- Leafybract dwarf rushJuncus capitatusJuncaceae
- Mosquito rushJuncus squarrosusJuncaceae
- Roundfruit rushJuncus compressusJuncaceae
- European meadow rushJuncus inflexusJuncaceae
Sources: classification from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.