Plant Species of the Bright Angel Trail:
*horehound Marrubium vulgare

This is a non-native species.

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: .

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 0.02, elevation 6834 feet (2083 m).

Number of plants along Trail: at least 20 plants were found in at least 5 different locations in September 2007.


From 14 September 2006, mile 0.02:


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 NameMarrubium vulgare
1987 Grand Canyon Flora NameMarrubium vulgare
1987 Grand Canyon Flora page42
SEINet Image PageMarrubium vulgare
USDA PlantsMarrubium vulgare
Flora of North America
Jepson Manual for California treatmentMarrubium vulgare
Jepson Manual illustration page-
Kearney and Peebles NameMarrubium vulgare
Kearney and Peebles Page #735
Vascular Plants of AZ nameMarrubium vulgare
Vascular Plants of AZ volume: page35:157
Huisinga et al 2006 name-
Huisinga et al 2006 page numbers-
Epple NameMarrubium vulgare
Epple description page #215
Epple pix #312
McDougall 1964 nameMarrubium vulgare
McDougall 1964 page #191
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: 29 September 2007