Plant Species of the Bright Angel Trail:
slender wheatgrass, Elymus trachycaulus
slender wheatgrass, Elymus trachycaulus
See Plant Guide to Bright Angel Trail for an introduction to this page, especially the Introduction To These Species Pages.
This page is just a shell to hold my photographs and reference information for now, so that readers can see the photographs and this taxon. The identification status, voucher info, and discussion of the species will be added in the future.
Characteristics
Identification status: This identification is a "best guess" based on the similarity of the old inflorescence stalks with specimens I've seen in southern California, along with records of this taxon from this trail or nearby.
From a SEINet search on 29 September 2007, there are vouchers of this species from the Coconino County portion of the Grand Canyon. The nearest are at: ; and . Note that there may be additional vouchers at other herbaria not available through SEINet.
First occurrence on Bright Angel Trail: mile 0.28, elevation 6695 feet (2041 m).
Number of plants along Trail: at least 50 plants were found in at least 9 different locations in September 2007.
Pictures
From 6 September 2007, mile ~0.60 (I forgot to take pictures of the first specimens on the trail), specimens that have lost most or all of their lemmas:
From 6 September 2007, mile ~0.70, of a specimen that still has some of the lemmas attached:
References
See Resources for Grand Canyon Flora for further information on most of these references. Entries in the second column are either the name used in that source or a page reference. The name is linked to online pages when available. If a given reference does not contain this taxon, the entry is either left blank or contains a hyphen.
| Family | Poaceae |
|---|---|
| Scientific Name | Elymus trachycaulus |
| 1987 Grand Canyon Flora Name | Agropyron trachycaulum |
| 1987 Grand Canyon Flora page | 14 |
| SEINet Image Page | Elymus trachycaulus |
| USDA Plants | Elymus trachycaulus |
| Flora of North America | |
| Jepson Manual for California treatment | Elymus trachycaulus |
| Jepson Manual illustration page | 1261 |
| Kearney and Peebles Name | Agropyron trachycaulum |
| Kearney and Peebles Page # | 93 |
| Vascular Plants of AZ name | |
| Vascular Plants of AZ volume: page | |
| Huisinga et al 2006 name | - |
| Huisinga et al 2006 page numbers | - |
| Epple Name | - |
| Epple description page # | - |
| Epple pix # | - |
| McDougall 1964 name | Agropyron trachycaulum |
| McDougall 1964 page # | 46 |
| Brian 2000 Name | |
| Phillips 1979 name | - |
| Phillips 1979 page # | - |
| Stockert 1967 name | - |
| Stockert 1967 page # | - |