| Classification | Fabaceae: Astragalus | 
| Harvard University Herbaria Barcode(s) | 00058894 | 
| Type Status | Holotype | 
| Collector | H. N. Bolander | 
| Collector number | 2513 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Marin County | 
| Locality | Baulinas Bay [now Bolinas Bay] | 
| Date Collected | 1863 | 
| Habitat | salt marsh | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4a5d43de-257c-48ac-847d-03976abbebdd | 
| Harvard University Herbaria Barcode | 00058894 | 
| Herbarium | GH | 
| Family | Fabaceae | 
| Type Status | Holotype | 
| Holotype of | Astragalus pycnostachyus A. Gray | 
| Taxon Reference | (for  Astragalus pycnostachyus A. Gray) Proc. Amer. Acad. Arts 1865. 6: 526. | 
| Family | Fabaceae | 
| Determination | Astragalus pycnostachyus A. Gray | 
| Determination Remarks | [label name] [current name] | 
| Annotation Text | n. sp. | 
| Sex | not determined | 
| Phenology | FlowerAndFruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed | 
| Item Remarks | mounted with G. R. Vasey s. n., USDA, 1976 collection on left |