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CCDB → Angiosperms → Orobanchaceae → Castilleja → Castilleja sulphurea Rydb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Castilleja sulphurea Rydb. | Castilleja sulphurea Rydb. | 12, 24 | IPCN67-71 | HECKARD, L.R. 1968. Chromosome numbers and polyploidy in Castilleja (Scrophulariaceae). Brittonia 20: 212-226. | |||
| Castilleja sulphurea Rydb. | Castilleja sulphurea Rydb. | 12 | 24 | IPCN75-78 | 48 |