Asclepias speciosa Torr.
Apocynaceae
| Collection Number | not collected |
| Collectors | |
| Identified By | Garden ID tag |
| Source | C. Davidson |
| Date | 01 January 1900 |
| Country | USA |
| state | Arizona |
| Location | West of Flagstaff on Route 66, then 3.8 miles south on Woody Mountain Road |