 
  	  CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous, please submit new counts, or report erroneous counts.
CCDB → Angiosperms → Poaceae → Stipa → Stipa ichu (Ruiz & Pav) Kunth
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | 40 | IPCN online | Pohl, R. W. & G. Davidse. 1971. Chromosome numbers of Costa Rican grasses. Brittonia 23(3): 293–324. | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | c.40,40 | IPCN66 | Gould1966 | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | 40 | IPCN67-71 | POHL, R.W., & G. DAVIDSE. 1971. Chromosome numbers of Costa Rican grasses. Brittonia 23: 293-324. | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | 20 | IPCN73-74 | DAVIDSE, G., & R.W. POHL. 1974. Chromosome numbers, meiotic behavior, and notes on tropical American grasses (Gramineae). Canad. J. Bot. 52: 317-328. | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | 42 | Fedorov, 1974 | Bowden, Senn L.962 | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | 44 | Fedorov, 1974 | Saura L.948a | ||
| ! | Stipa gynerioides Phil. | Stipa ichu (Ruiz & Pav) Kunth | 44 | Darlington, 1955 | Covas 1945 | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | 44 | Darlington, 1955 | Saura 1948a | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | 42 | Cave1962 | Bowden & Senn 1962 | ||
| ! | Stipa ichu (Ruiz & Pav) Kunth | Stipa ichu (Ruiz & Pav) Kunth | 44 | Cave1962 | Tateoka 1962 |