| Classification | Juncaceae: Juncus | 
| Barcode(s) | 00274025 | 
| Collector | H. D. Thoreau | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Concord | 
| Date Collected | 1860-05-30 | 
| Remarks | just out [from Hoar's transcription] ap. [apparently] not for a week | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/77601ac7-a3c4-4f3a-848b-3afa52562703 | 
| Harvard University Herbaria Barcode | 00274025 | 
| Herbarium | NEBC | 
| Previous ownership | Thoreau’s Herb. [Ex Herbarium of Henry David Thoreau (1817-1862)] Herbarium of Edward S. Hoar. Presented to the New England Botanical Club by Mrs. M. B. L. Bradford, 1912 | 
| Family | Juncaceae | 
| Determination |  Juncus arcticus var. balticus (Willdenow) Trautvetter | 
| Determined by | Kittredge, Walter Tobey | 
| Date Determined | 2008-12-18 | 
| Determination Remarks |  [filed under] [current name] | 
| Family | Juncaceae | 
| Determination |  Juncus filiformis Linnaeus | 
| Determined by | [H. D. Thoreau (scripsit) on original field label] | 
| Determination Remarks |  [label name] | 
| Family | Juncaceae | 
| Determination |  Juncus balticus var. littoralis Engelmann | 
| Determined by | [M. L. Fernald (scripsit) on provenance label] | 
| Family | Juncaceae | 
| Determination |  Juncus filiformis Linnaeus | 
| Determined by | [E. S. Hoar (scripsit) transcription on sheet] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |