| Classification | Malvaceae: Malvastrum |
| Classification 1 | Malvaceae: Malacothamnus |
| Barcode(s) | 00052912 |
| Type Status | Isolectotype |
| Collector | G. Thurber |
| Collector number | 709 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona |
| Locality | Santa Cruz Valley |
| Date Collected | 1852-07-** |
| Remarks | [T. H. Kearney states in Leafl. W. Bot. 6: 137. 1951, "labelled as from Santa Cruz, Sonora . . . but this surely an error as to locality." Sonora does not appear on the label, Gray states it in the protologue. In the introduction to Pl. Nov. Thurb. 305, Thurber states, "The party left the Gila in July. The route, which was by way of Tucson, Santa Cruz, Janos, and Corralitos"] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/cd551705-05fd-4ce4-8887-e0eedd6db52e |
| Harvard University Herbaria Barcode | 00052912 |
| Herbarium | GH |
| Family | Malvaceae |
| Type Status | Isolectotype |
| Isolectotype of | Malvastrum thurberi A. Gray |
| Verified by | Morse, Keir |
| Date Determined | 2022 |
| Determination Remarks | [filed under] |
| Annotation Text | Systematics of the genus Malacothamnus |
| Taxon Reference | (for Malvastrum thurberi A. Gray) Mem. Amer. Acad. Arts 1854. n.s. 5: 307. |
| Family | Malvaceae |
| Type Status | Isolectotype |
| Isolectotype of | Malvastrum thurberi A. Gray |
| Verified by | Gandhi, Kancheepuram Natarajan |
| Date Determined | 1996 |
| Taxon Reference | (for Malvastrum thurberi A. Gray) Mem. Amer. Acad. Arts 1854. n.s. 5: 307. |
| Family | Malvaceae |
| Determination | Malacothamnus fasciculatus (Nuttall ex Torrey & A. Gray) Greene |
| Determined by | Morse, Keir |
| Date Determined | 2022 |
| Determination Remarks | [current name] |
| Annotation Text | var. fasciculatus |
| Family | Malvaceae |
| Determination | Malacothamnus fasciculatus (Nuttall ex Torrey & A. Gray) Greene |
| Determined by | Fryxell, Paul Arnold |
| Determination Remarks | [cited in Syst. Bot. Monogr. 25: 272. 1988] |
| Family | Malvaceae |
| Determination | Malvastrum thurberi A. Gray |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
