Plant Species of the Bright Angel Trail:
Indian ricegrass, Achnatherum hymenoides

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.


Identification status: This is just a "best guess" at this species.

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 0.39, elevation 6635 feet (2022 m); first off-trail occurrence is at mile 0.33, elevation 6668 feet (2032 m).

Number of plants along Trail: at least plants were found in at least different locations in September 2007.


From 5 September 2007, mile 0.33, off-trail specimens. These pictures don't capture well the appearance seen by the eye:


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.

Scientific NameAchnatherum hymenoides
1987 Grand Canyon Flora NameOryzopsis hymenoides
1987 Grand Canyon Flora page18
SEINet Image PageAchnatherum hymenoides
USDA PlantsAchnatherum hymenoides
Flora of North America
Jepson Manual for California treatmentAchnatherum hymenoides
Jepson Manual illustration page1231
Kearney and Peebles NameOryzopsis hymenoides
Kearney and Peebles Page #115
Vascular Plants of AZ name
Vascular Plants of AZ volume: page
Huisinga et al 2006 nameAchnatherum hymenoides
Huisinga et al 2006 page numbers32-33
Epple Name-
Epple description page #-
Epple pix #-
McDougall 1964 nameOryzopsis hymenoides
McDougall 1964 page #54
Brian 2000 Name
Phillips 1979 name-
Phillips 1979 page #-
Stockert 1967 name-
Stockert 1967 page #-

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Copyright © 2007 by Tom Chester.
Permission is freely granted to reproduce any or all of this page as long as credit is given to me at this source:
Comments and feedback: Tom Chester
Last Update: 2 October 2007