| Classification | Malvaceae: Malvastrum |
| Harvard University Herbaria Barcode(s) | 00052900 |
| Type Status | Isotype |
| Collector | A. A. Heller |
| Collector number | 13242 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Colusa County |
| Locality | Lake County; Near Ladoga |
| Date Collected | 1919-06-08 |
| Habitat | in the blue oak belt, the shrubs Ceanothus, Adenostoma and Toxicodendron. |
| Container | Plants of California |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c95fdec2-36d0-4f76-92bf-07343d83b6af |
| Harvard University Herbaria Barcode | 00052900 |
| Herbarium | GH |
| Family | Malvaceae |
| Type Status | Isotype |
| Isotype of | Malvastrum helleri Eastwood |
| Verified by | Morse, Keir |
| Date Determined | 2023-08-** |
| Determination Remarks | [filed under] [current name] |
| Annotation Text | = Malacothamnus fremontii var. exfibulosus (Jeps.) K.Morse
In: Malacothamnus 3: 123. 2023. |
| Taxon Reference | (for Malvastrum helleri Eastwood) Leafl. W. Bot. 1936. 1: 217. |
| Family | Malvaceae |
| Determination | Malvastrum helleri Eastwood |
| Determined by | Bates, David Martin |
| Date Determined | 1962 |
| Annotation Text | Malacothamnus fasciculatus (Nutt. ex T. & G.) Greene subsp. exfibulosus (Jeps.) Bates n. comb
Isotype: Malvastrum helleri Eastw. Collected in Colusa not Lake Co. |
| Family | Malvaceae |
| Determination | Malvastrum sp. |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
