Difference between revisions of "Mentzelia flumensevera"
Novon 19: 118. 2009.
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|name=Mentzelia multicaulis var. flumensevera | |name=Mentzelia multicaulis var. flumensevera | ||
|authority=N. H. Holmgren & P. K. Holmgren | |authority=N. H. Holmgren & P. K. Holmgren | ||
| + | |rank=variety | ||
|publication_title=Syst. Bot. | |publication_title=Syst. Bot. | ||
|publication_place=27: 761, fig. 6E–G. 2002 | |publication_place=27: 761, fig. 6E–G. 2002 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Mentzelia flumensevera | name=Mentzelia flumensevera | ||
| − | |||
|authority=(N. H. Holmgren & P. K. Holmgren) J. J. Schenk & L. Hufford | |authority=(N. H. Holmgren & P. K. Holmgren) J. J. Schenk & L. Hufford | ||
|rank=species | |rank=species | ||
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|publication year=2009 | |publication year=2009 | ||
|special status=Endemic;Conservation concern | |special status=Endemic;Conservation concern | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_220.xml |
|genus=Mentzelia | |genus=Mentzelia | ||
|section=Mentzelia sect. Bartonia | |section=Mentzelia sect. Bartonia | ||
Latest revision as of 19:14, 5 November 2020
Plants perennial, bushlike, with subterranean caudices or rhizomes. Stems multiple, erect or decumbent, zigzag; branches along entire stem, all ± equal, antrorse, upcurved; hairy. Leaves: blade 11.2–22 × 5.2–10.2 mm, widest intersinus distance 1.2–2.4 mm; proximal oblanceolate to elliptic, margins pinnate, lobes 4–6, perpendicular to leaf axis, 2.3–4.1 mm; distal elliptic, base not clasping, margins pinnate, lobes 2–4, perpendicular to leaf axis, 1.4–3 mm; abaxial surface with complex grappling-hook and needlelike trichomes, adaxial surface with complex grappling-hook and needlelike trichomes. Bracts: margins entire. Flowers: petals golden yellow, 10–11.2 × 2.9–3.8 mm, apex rounded, glabrous abaxially; stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 7.3–8.4 × 1.3–1.9 mm, with anthers, second whorl with anthers; anthers straight after dehiscence, epidermis smooth; styles 5.8–8.7 mm. Capsules cup-shaped, 5.6–7.1 × 4–6 mm, base rounded, not longitudinally ridged. Seeds: coat anticlinal cell walls straight, papillae 3–7 per cell.
Phenology: Flowering Jul–Aug(–Oct).
Habitat: Sparsely vegetated, steep talus slopes composed of gravel and clay, white soils.
Elevation: 1700–1900 m.
Discussion
Mentzelia flumensevera is narrowly distributed across the Piute and Sevier county line.
Selected References
None.