| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Arctostaphylos roofii Gankin | R. W. Gankin 733 06 Apr 1966 | United States of America. California. Glenn Co. On Hull Road, 11.5 miles NW of its junction with Road 306. Soil gravelly loam of the Maymen Series. | isosyntype | 9761 |  |
| Arctostaphylos roofii Gankin | R. W. Gankin 838 22 Jun 1966 | United States of America. California. Glenn Co. On Hull Road, 11.5 miles NW of its junction with Road 306. Soil gravelly loam of the Maymen Series. | isosyntype | 9762 |  |
| Arctostaphylos manzanita subsp. roofii (Gankin) P.V.Wells | R. R. Halse 9034 25 Mar 2014 | United States of America. California. Colusa Co. Along the Bear Valley Road ca 1.8 mi WNW of its junction with State Hwy. 20. Common along roadside. | 2516785 |  |
