Torreya 32: 152
Each value Trefle shows for Penstemon hesperius, 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 | M.E.Peck |
|
Sourced |
| Bibliography | Torreya 32: 152 |
|
Sourced |
| Rank | species |
No source recorded
|
Source not recorded |
| Status | accepted |
|
Sourced |
| Year | 1932 |
|
Sourced |