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in asphalted road bed debris along highway right-of-way on low hillside slope of white chalky limestone
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in secondary caliche soil over rocky limestone hillside
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plants in shallow calcareous soils and gravels on low hillside slope of white blocky Cretaceous limestone. Site represents an extreme eastern outlier of Chihuahuan Desert flora (Agave lechuguilla present) in transition to upland Tamaulipan brushland of Rio Grande plains.
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annual plants on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub. Note pustular glands on phyllaries.
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ephemeral annuals in largely overgrazed playa grassland on silty clay flats of the extensive Mimbres playa, with Atriplex acanthocarpa, Pleuraphis mutica, Sporobolis airoides, Gutierrezia, Tidestromia and Prosopis glandulosa.
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Image taken during Jepson workshop: Mojave Flora with Bruce Baldwin and James Andre.
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small, woody based sub-shrub on grayish crust of weathered gypsum re-cementing gravels of anhydrite gypsum and calcareous shaley limestone substrate exposed on SW facing lower foothill slopes of the escarpment, with endemic Anulocaulis leiosolensis v. howardii, Mentzelia humilis v. guadalupensis, Nerisyrenia hypercorax.Note conspicuous pustular oil glands.
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in asphalted road bed debris along highway right-of-way on low hillside slope of white chalky limestone
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hillside with calcareous gravels on over white blocky limestone outcrops with an exceptionally rich and diverse flora less than 100 yards east of Coahuila state line.
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annual plants on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub. Note pustular glands on phyllaries.
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ephemeral annuals in largely overgrazed playa grassland on silty clay flats of the extensive Mimbres playa, with Atriplex acanthocarpa, Pleuraphis mutica, Sporobolis airoides, Gutierrezia, Tidestromia and Prosopis glandulosa.
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Image taken during Jepson workshop: Mojave Flora with Bruce Baldwin and James Andre.
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small mounding, sub-shrubby perennial on a broad, gravelly ridge of platy Cretaceous limestone and shale. Needle-like foliage is aromatic.
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ephemeral annuals in largely overgrazed playa grassland on silty clay flats of the extensive Mimbres playa, with Atriplex acanthocarpa, Pleuraphis mutica, Sporobolis airoides, Gutierrezia, Tidestromia and Prosopis glandulosa.
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Image taken during Jepson workshop: Mojave Flora with Bruce Baldwin and James Andre. Aplolgies for the inclusion of 'plamp' device in the background...........windy day.
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small mounding, sub-shrubby perennial on a broad, gravelly ridge of platy Cretaceous limestone and shale. Needle-like foliage is aromatic. Note pale orange pustular glands on phyllaries of flower buds
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plants in shallow calcareous soils and gravels on low hillside slope of white blocky Cretaceous limestone. Site represents an extreme eastern outlier of Chihuahuan Desert flora (Agave lechuguilla present) in transition to upland Tamaulipan brushland of Rio Grande plains.
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ephemeral annuals in largely overgrazed playa grassland on silty clay flats of the extensive Mimbres playa, with Atriplex acanthocarpa, Pleuraphis mutica, Sporobolis airoides, Gutierrezia, Tidestromia and Prosopis glandulosa.
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small mounding, sub-shrubby perennial on a broad, gravelly ridge of platy Cretaceous limestone and shale. Needle-like foliage is aromatic.
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annual plants on flat plains of a large bolson (los llanos), in silty, slightly saline, gyp-calcareous clay soil, along the margin between a long abandoned agricultural area and undisturbed native scrub. Pappus not examined- no variety determined.
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plants on large flat bolson plain (llano) in silty, slightly gyp/saline, calcareous clay soil, once cultivated but long abandoned agricultural area rich with diverse annual forbs from recent heavy rains and patches of undisturbed native desert scrub.
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on low badland slopes and drainage rills in fractured gypseous, shaley Cretaceous limestone with Stenandrium barbatum, Amsonia longiflora, Ariocarpus fissuratus, Echinocactus horizonthalonius, Nama havardii, Thymophylla acerosa, Dalea wrightii, Polygala macradenia, Nerisyrenia camporum.
