File:Spiny menodora, Menodora spinescens var. spinescens (32380158220).jpg

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spiny menodora, Menodora spinescens var. spinescens, California, White Mountains, Gilbert Pass, Deep Springs Valley drainage, elevation 1710 m (5615 ft).

The well-protected spiny menodora is one of more than two dozen shrub species forming the mixed desert shrub vegetation zone in this area, where it occupies the transition between the Great Basin sagebrush zone and the Mojave Desert. During drought conditions all that shows is the spiny network of green stems, which continue to photosynthesize without leaves or flowers.

The spination pattern and depressed habit of this species resembles two other unrelated (and much less common) shrub species of different habitats in this area: Glossopetalon spinescens (Crossosomataceae) and Polygala intermontana (Polygalaceae). Technically the spines of these species are actually thorns, being modified stem branches instead of modified leaf structures.
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Source spiny menodora, Menodora spinescens var. spinescens
Author Jim Morefield from Nevada, USA
Camera location37° 24′ 52.34″ N, 117° 58′ 15.92″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This image was originally posted to Flickr by Jim Morefield at https://flickr.com/photos/127605180@N04/32380158220 (archive). It was reviewed on 29 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

29 December 2019

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Date/TimeThumbnailDimensionsUserComment
current03:23, 29 December 2019Thumbnail for version as of 03:23, 29 December 20193,648 × 2,736 (5.41 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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