BIOONE Online Journals - Rosette scrub occurrence and fog ...
We found that the abundance and richness of succulent rosette species are .... for the widespread occurrence of the montane rosette scrub throughout Mexico. ...
www.bioone.org/perlserv/?request=get-document&issn=1100-923... -

Large succulent leaf rosettes are a characteristic life form in many deserts. In certain areas they become the dominant life form, creating a vegetation type indicated as rosette scrub. The large number of rosette species suggests a close relationship between form and environment. Rosettes are excellent harvesters of low-intensity rains and fogs. We propose that some rosette-dominated formations of the Mexican mountains, namely the montane rosette scrub, occur in altitudinal belts around mountains where fog is abundant. We sampled four altitudinal gradients in mountains with different flora recording the abundance and richness of plants. At one site, the Tehuacán Valley, we also measured the quantity of fog along the gradient, below, above and in the rosette scrub for one year. We found that the abundance and richness of succulent rosette species are strongly associated with altitude, showing maximum values in the well-defined elevational belts where the montane rosette scrub occurs. Other life forms, such as stem succulent cacti or woody shrubs, do not show this mid-elevation pattern. The altitudinal ranges where the montane rosette scrub occurs usually coincide with areas where clouds and fog form. Our micrometeorological measurements indicate that rosette plants growing within a cloud belt can increase their water supply by 10–100% by harvesting fog. Outside these belts fog harvest is negligible. Desert rosettes constitute one of the most common fog-harvesting growth forms.

http://www.bioone.org/perlserv/?request=get-document&issn=11...

Biological Conservation : Plant endemism and natural protected ...
This narrow band of coastal sage and succulent-rosette scrubs, chaparrals, ... lowlands of Baja California (including chiefly chaparral and coastal scrubs), ...
linkinghub.elsevier.com/retrieve/pii/S0006320704003295

--------------------------------------------------
Note added at 8 hrs (2007-07-16 11:55:13 GMT)
--------------------------------------------------

[PDF]
Ecoregional Conservation Assessment of the Chihuahuan Desert ...
File Format: PDF/Adobe Acrobat
Succulent Desert Scrub. Lechuguilla (Agave Cechuguilla),. candelilla (Euphorbia spp. ...... MATORRAL CRASICAULE CON. VEGETACION SECUNDARIA (cactus shrubland ...
parksinperil.org/files/chihuahuan_desert_appendices_cover_toc_1_300pp.pdf

--------------------------------------------------
Note added at 10 hrs (2007-07-16 13:18:46 GMT)
--------------------------------------------------

matorral desértico rosetófilo y matorral. crasicaule(Bravo-Hollis,1978). ... scrubland with succulents y mencionan que ...
redalyc.uaemex.mx/redalyc/pdf/621/62101607.pdf

--------------------------------------------------
Note added at 10 hrs (2007-07-16 13:27:16 GMT)
--------------------------------------------------

scrub, scrubland or shrubland

this is desert vegetation consisting of succulent or cactus-type species that grow in rosette form, as a better way to collect any rain that falls