| Classification | Cyperaceae: Carex | 
| Barcode(s) | 00267959 | 
| 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: Lincoln | 
| Locality | Baker's rock | 
| Date Collected | 1859-06-19 | 
| Elevation | 0 m | 
| Habitat | not wet ground | 
| Frequency |  not uncommon | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4e28772f-d7e9-461f-aa5b-ac2ea348dcc1 | 
| Harvard University Herbaria Barcode | 00267959 | 
| 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 | Cyperaceae | 
| Determination |  Carex muhlenbergii Kunth ex Boott | 
| Determined by | [annotation on provenance label] | 
| Determination Remarks |  [filed under] [current name] | 
| Family | Cyperaceae | 
| Determination |  Carex muehlenbergii Schkuhr ex Willdenow | 
| Determined by | identd by Prof. [L. H.] Bailey [E. S. Hoar (scripsit)] | 
| Family | Cyperaceae | 
| Determination | InQuestion Carex cephalophora Muhlenberg | 
| Determined by | [H. D. Thoreau (scripsit) on original field label] | 
| Determination Remarks |  [label name] | 
| Annotation Text | [crossed out] call the other festucacea var. | 
| Family | Cyperaceae | 
| Determination |  Carex muhlenbergii Kunth ex Boott | 
| Determined by | [E. S. Hoar (scripsit) transcription on sheet] | 
| Family | Cyperaceae | 
| Determination |  Carex muhlenbergii Kunth ex Boott | 
| Determined by | [H. D. Thoreau (scripsit) on original field label] | 
| Annotation Text | or possibly [crossed out] muhlenbergii ? [question mark crossed out] | 
| Sex | not determined | 
| Phenology | Fruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |