Difference between revisions of "Mentzelia librina"
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|name=Mentzelia multicaulis var. librina | |name=Mentzelia multicaulis var. librina | ||
|authority=K. H. Thorne & F. J. Smith | |authority=K. H. Thorne & F. J. Smith | ||
| + | |rank=variety | ||
|publication_title=Great Basin Naturalist | |publication_title=Great Basin Naturalist | ||
|publication_place=46: 556, fig. 1. 1986 | |publication_place=46: 556, fig. 1. 1986 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Mentzelia librina | name=Mentzelia librina | ||
| − | |||
|authority=(K. H. Thorne & F. J. Smith) J. J. Schenk & L. Hufford | |authority=(K. H. Thorne & F. J. Smith) 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_519.xml |
|genus=Mentzelia | |genus=Mentzelia | ||
|section=Mentzelia sect. Bartonia | |section=Mentzelia sect. Bartonia | ||
Latest revision as of 20:16, 5 November 2020
Plants perennial, bushlike, with subterranean caudices or rhizomes. Stems multiple, erect, zigzag; branches distal or along entire stem, distal longest or all ± equal, antrorse, straight to upcurved; hairy. Leaves: blade 14–26.3 × 5.1–10.8 mm, widest intersinus distance 2.3–5.2 mm; proximal oblanceolate to elliptic, margins usually 3-fid, rarely entire or pinnate, teeth or lobes usually 2, rarely 0 or 4, perpendicular to leaf axis, 0.8–2.7 mm; distal elliptic, base not clasping, margins 3-fid to occasionally pinnate, teeth or lobes usually 2, occasionally 4, perpendicular to leaf axis, 1.5–3.5 mm; abaxial surface with simple grappling-hook and complex grappling-hook trichomes, adaxial surface with simple grappling-hook and needlelike trichomes. Bracts: margins usually entire, rarely pinnate. Flowers: petals golden yellow, 8.3–13.6 × 2.6–4.8(–6.2) mm, apex acute, glabrous abaxially; stamens golden yellow, 5 outermost petaloid, filaments broadly spatulate, strongly clawed, 6–8(–9.1) × 2.3–4.4 mm, with anthers, second whorl with anthers; anthers straight after dehiscence, epidermis smooth; styles 5–7.9 mm. Capsules cup-shaped, 4–7.3 × 3.3–5.8 mm, base rounded, not longitudinally ridged. Seeds: coat anticlinal cell walls straight, papillae 4–5 per cell.
Phenology: Flowering Jun–Sep.
Habitat: Barren gray soils, steep shale slopes.
Elevation: 1700–2100 m.
Discussion
Mentzelia librina in narrowly distributed along the border between Carbon and Emery counties.
Selected References
None.