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- mollis, Mentzelia monoensis, Mentzelia montana, Mentzelia nitens, Mentzelia obscura, Mentzelia packardiae, Mentzelia pectinata, Mentzelia ravenii, Mentzelia14 KB (669 words) - 19:14, 5 November 2020
- genusHebecarpa Show Lower Taxa Hebecarpa barbeyana, Hebecarpa macradenia, Hebecarpa obscura, Hebecarpa ovatifolia, Hebecarpa palmeri, Hebecarpa punctata, Hebecarpa5 KB (399 words) - 22:53, 2 December 2022
- Taxa Lemna aequinoctialis, Lemna gibba, Lemna minor, Lemna minuta, Lemna obscura, Lemna perpusilla, Lemna trisulca, Lemna turionifera, Lemna valdiviana Linnaeus5 KB (286 words) - 20:30, 5 November 2020
- genusLeskea Show Lower Taxa Leskea australis, Leskea gracilescens, Leskea obscura, Leskea polycarpa Hedwig Sp. Musc. Frond., 211, plates 49 – 58, plate 594 KB (330 words) - 21:36, 5 November 2020
- speciesLemna obscura (Austin) Daubs Illinois Biological Monographs 34: 20. 1965. Elias Landolt WeedyIllustrated Basionym: Lemna minor var. obscura Austin in3 KB (269 words) - 20:30, 5 November 2020
- familyXyridaceae genusXyris speciesXyris stricta Show Lower Taxa Xyris stricta var. obscura, Xyris stricta var. stricta Chapman Fl. South. U.S. 500. 1860. Robert Kral4 KB (396 words) - 18:34, 6 November 2020
- region) is without distinct lobes in H. obscura, even when it covers nearly 4/5 the seed body. Collections of H. obscura from scattered localities can have4 KB (455 words) - 10:32, 9 May 2022
- S.C., Tenn., Tex., Va., W.Va., Wis. Leskea obscura is more common in eastern North America. Leskea obscura is distinguished from L. gracilescens by its3 KB (322 words) - 21:36, 5 November 2020
- familyLoasaceae genusMentzelia sectionMentzelia sect. Trachyphytum speciesMentzelia obscura H. J. Thompson & J. E. Roberts Phytologia 21: 284. 1971. Joshua M. Brokaw3 KB (311 words) - 19:13, 5 November 2020
- familyXyridaceae genusXyris speciesXyris stricta varietyXyris stricta var. obscura Kral Novon 9: xxx, fig. 8. 1999. Robert Kral Endemic Synonyms: Xyris louisianica2 KB (182 words) - 20:31, 5 November 2020
- IllustratedIntroducedWeedy Synonyms: Potentilla recta subsp. obscura (Willdenow) Arcangeli P. recta var. obscura (Willdenow) Poiret P. recta subsp. pilosa (Willdenow7 KB (741 words) - 22:55, 5 November 2020
- Arnell F. nitida Cardot F. nitida var. angustiretis Cardot ex W. H. Welch F. obscura (Cardot) Cardot F. subcarinata Cardot F. tenella F. umbachii Treatment appears5 KB (519 words) - 21:38, 5 November 2020
- L. obscura by an endostome and exostome nearly equal in length (0.2–0.4 mm) and an operculum that is more pointed than the operculum of L. obscura. The4 KB (420 words) - 21:36, 5 November 2020
- Lemnaceae Lemna minor Spirodela punctata Lemna trisulca Wolffia borealis Lemna obscura Wolffia arrhiza Wolffia columbiana Lemna minuta Lemna perpusilla Wolffiella9 KB (964 words) - 20:29, 5 November 2020
- Hookera laxa Borzí Milla laxa A. Heller Seubertia laxa Greene Seubertia obscura Triteleia angustiflora Triteleia candida Treatment appears in FNA Volume4 KB (380 words) - 21:16, 5 November 2020
- Lemnaceae Lemna minor Spirodela punctata Lemna trisulca Wolffia borealis Lemna obscura Wolffia arrhiza Wolffia columbiana Lemna minuta Lemna perpusilla Wolffiella180 bytes (0 words) - 22:01, 19 November 2020
- hispidula Sargent C. insperata Sargent C. mollicula Sargent C. mollita Linnaeus C. obscura C. scabera C. spinulosa C. tomentosa var. microcarpa Chapman Treatment appears8 KB (865 words) - 23:00, 5 November 2020
- desertorum, a diploid, is most similar morphologically to the tetraploid M. obscura, and the two species may be difficult to distinguish prior to seed maturation3 KB (318 words) - 19:17, 5 November 2020
- M. albicaulis. Two tetraploids in sect. Trachyphytum, M. montana and M. obscura, also have been treated previously as M. albicaulis (N. H. Holmgren et al5 KB (453 words) - 19:13, 5 November 2020