Sonchus asper subsp. glaucescens
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https://doi.org/10.5281/zenodo.293764 |
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https://treatment.plazi.org/id/90236A28-9C7F-F579-F92C-FDF71F45466F |
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Plazi |
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Sonchus asper subsp. glaucescens |
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(b) Subsp. glaucescens View in CoL (Jordan) Ball, Jour. Linn. Soc. London (Bot.) 16: 548 (1878)
Biennial. Leaves often forming a rosette, coriaceous, with spiny margins. Achenes with dense, recurved spinules on margins and ribs. Pollen-grains 30-35- 5 ц. S., W. & C. Europe.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Sonchus asper subsp. glaucescens
| Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. 1976 |
Subsp. glaucescens
| Subsp. glaucescens (Jordan) Ball, Jour. Linn. Soc. London (Bot.) 16: 548 (1878) |