Mem. Real Soc. Esp. Hist. Nat., tomo extr.: 227 (1921)
Each value Trefle shows for Sideritis × difficilis, with what every source says about it. When sources disagree, the strongest source is shown (how sources are ranked). Values imported before sources were recorded one by one are marked Source not recorded.
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| Field | Shown | What the sources say | |
|---|---|---|---|
| Core | |||
| Author | Font Quer |
No source recorded
|
Source not recorded |
| Bibliography | Mem. Real Soc. Esp. Hist. Nat., tomo extr.: 227 (1921) |
No source recorded
|
Source not recorded |
| Rank | hybrid |
No source recorded
|
Source not recorded |
| Status | accepted |
No source recorded
|
Source not recorded |
| Year | 1921 |
No source recorded
|
Source not recorded |
| Descriptive | |||
| Observations | Spain |
No source recorded
|
Source not recorded |
| Morphology | |||
| Vegetable | false |
No source recorded
|
Source not recorded |