[MPWG] Fw: regarding posting on this list ~ Creosote

[Michael McGuffin]

Hi,

Here are references that supports Eden's understanding:

 

Larrea tridentata (DC.) Cov. : "dominant shrub over vast areas of
desert." Hickman JC (ed.); 1993; The Jepson manual: Higher plants of
California; Berkeley: University of California Press.

 

Larrea divaricata Cav. : "Creosote Bush is the most common and widely
distributed shrub of the Lower Sonoran Life Zone in the desert regions
of southern California where it often forms pure associations making a
distinct belt of vegetation known as the Larrea (Covillea) belt. ... It
extends eastward through Nevada, Arizona, and New Mexico to Texas and
southward into Mexico. It also occurs in Argentina, South America. The
North American plants may prove, upon further research, to be distinct
from those of Argentina.... [NOTE: L. divaricata is now considered to be
the name of a South American species, while L. tridentata refers to the
North America species that was certainly the subject of this cited entry
- MMcG.] McMinn HE; 1951; An Illustrated Manual of California Shrubs;
Berkeley: University of California Press.

 

Michael McGuffin

President, American Herbal Products Association

8630 Fenton Street, #918

Silver Spring, MD 20910

mmcguffin at ahpa.org <mailto:mmcguffin at ahpa.org> 

Phone in MD: 301-588-1171 x201

Phone in CA: 310-745-8401

________________________________

From: mpwg-bounces at lists.plantconservation.org
[mailto:mpwg-bounces at lists.plantconservation.org] On Behalf Of
Patricia_DeAngelis at fws.gov
Sent: Thursday, June 18, 2009 12:49 PM
To: mpwg at lists.plantconservation.org
Subject: [MPWG] Fw: regarding posting on this list ~ Creosote

 


Forwarding a message from someone who's in the process of subscribing to
the list from a new account but wanted to respond. Read on... 

Patricia S. De Angelis, Ph.D.
Botanist - Division of Scientific Authority
Chair - Plant Conservation Alliance - Medicinal Plant Working Group
US Fish & Wildlife Service
4401 N. Fairfax Dr., Suite 110
Arlington, VA  22203
703-358-1708 x1753
FAX: 703-358-2276
Working for the conservation and sustainable use of our green natural
resources.
<www.nps.gov/plants/medicinal>

----- Forwarded by Patricia De Angelis/ARL/R9/FWS/DOI on 06/18/2009
03:46 PM ----- 

Eden <edensomberg at yahoo.com> 

06/18/2009 03:28 PM 

 

 

 

 

 

 

 

 

 



Hi Elizabeth,

I'm not the grad student you're looking for, but from what I understand,
Creosote (Larrea tridentata) is one of the most plentiful plants in the
American Southwest, to the point of being considered invasive in some
areas, and depending on how that amount is gathered over a certain area
I would imagine it to be quite sustainable. I did find a reference for
you:

Whitson, T.D. (ed.) et al. 1996. Weeds of the West. Western Society of
Weed Science in cooperation with Cooperative Extension Services,
University of Wyoming. Laramie, Wyoming. 630pp.

Best Regards,
Eden

--- On Thu, 6/18/09, Elizabeth Kirchner <ekirchner at aibs.org> wrote:

> From: Elizabeth Kirchner <ekirchner at aibs.org>
> Subject: [MPWG] Gila tribe uses native plants in new line of spa
products
> To: mpwg at lists.plantconservation.org
> Date: Thursday, June 18, 2009, 7:59 AM
> Hi,
> Harvesting 100 pounds of "creosote brush" each month sounds
> sustainable. Does anybody know, or is there a graduate
> student somewhere studying, creosote ecology and how much
> harvest is too much harvest?
> Thanks and regards,
> Liz



     

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