| Classification | Brassicaceae: Lesquerella | 
| Classification 1 | Brassicaceae: Physaria | 
| Classification 2 | Brassicaceae: Vesicaria | 
| Classification 3 | Brassicaceae: Alyssum | 
| Barcode(s) | 00019269 | 
| Type Status | Lectotype | 
| Collector | F. T. Pursh | 
| Country | Canada | 
| State | Quebec Province | 
| Geography | North America: North America (CA, US, MX) (Region): Canada: Quebec Province | 
| Locality | Island of Anticosti | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a5532eb0-726c-4b9c-ad77-d9f3c97e1eef | 
| Harvard University Herbaria Barcode | 00019269 | 
| Herbarium | GH | 
| Previous ownership | ex Herb. Shepard - Pursh coll., ex Herb. G. Thurber | 
| Family | Brassicaceae | 
| Type Status |  Lectotype | 
| Lectotype of |  Lesquerella arctica var. purshii S. Watson | 
| Verified by | W. T. Kittredge | 
| Date Determined | 2009 | 
| Taxon Reference | (for  Lesquerella arctica var. purshii S. Watson) Proc. Amer. Acad. Arts 1888. 23: 254. | 
| Family | Brassicaceae | 
| Determination |  Physaria arctica (Wormskjold ex Hornemann) O'Kane & Al-Shehbaz | 
| Determined by | W. T. Kittredge | 
| Date Determined | 2009 | 
| Determination Remarks |  [current name] | 
| Family | Brassicaceae | 
| Determination |  Vesicaria  | 
| Determined by | A. Gray | 
| Determination Remarks |  [current name] | 
| Annotation Text | n. sp. allied to V. arctica of Dr. Richardson, but different | 
| Family | Brassicaceae | 
| Determination |  Lesquerella purshii (S. Watson) Fernald | 
| Determined by | M. L. Fernald | 
| Determination Remarks | [M. L. Fernald (scripsit)] | 
| Annotation Text | Type | 
| Family | Brassicaceae | 
| Determination |  Alyssum hyperboreum Linnaeus | 
| Determination Remarks |  [label name] | 
| Sex | not determined | 
| Phenology | Fruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |