Difference between revisions of "Mentzelia integra"
Contr. U.S. Natl. Herb. 25: 363. 1925.
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|name=Mentzelia multiflora var. integra | |name=Mentzelia multiflora var. integra | ||
|authority=M. E. Jones | |authority=M. E. Jones | ||
| + | |rank=variety | ||
|publication_title=Proc. Calif. Acad. Sci., ser. | |publication_title=Proc. Calif. Acad. Sci., ser. | ||
|publication_place=2, 5: 689. 1895 | |publication_place=2, 5: 689. 1895 | ||
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|name=Nuttallia lobata | |name=Nuttallia lobata | ||
|authority=Rydberg 1913 | |authority=Rydberg 1913 | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Loasaceae;Mentzelia;Mentzelia sect. Bartonia;Mentzelia integra | |hierarchy=Loasaceae;Mentzelia;Mentzelia sect. Bartonia;Mentzelia integra | ||
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name=Mentzelia integra | name=Mentzelia integra | ||
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|authority=(M. E. Jones) Tidestrom | |authority=(M. E. Jones) Tidestrom | ||
|rank=species | |rank=species | ||
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|publication year=1925 | |publication year=1925 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_124.xml |
|genus=Mentzelia | |genus=Mentzelia | ||
|section=Mentzelia sect. Bartonia | |section=Mentzelia sect. Bartonia | ||
Latest revision as of 19:13, 5 November 2020
Plants winter annual or biennial, candelabra-form. Stems solitary, erect, straight; branches distal or along entire stem, distal or proximal longest, antrorse, straight, proximal not decumbent; hairy or glabrescent. Leaves: blade (23–)29–78.4 × 3–14.6 mm, widest intersinus distance 1.6–8.5 mm; proximal oblanceolate or elliptic, margins dentate to serrate, teeth 4–12, proximal sides slightly antrorse, distal sides perpendicular to leaf axis, 0.8–5.3 mm; distal oblanceolate, elliptic, lanceolate, or linear, base not clasping, tapered, margins usually dentate to serrate, rarely entire, teeth (0–)2–10, proximal sides antrorse, distal sides perpendicular to leaf axis, 0.4–5.3 mm; abaxial surface with simple grappling-hook, complex grappling-hook, and needlelike trichomes, largest trichomes with pearly white bases, adaxial surface with needlelike trichomes. Bracts: margins entire. Flowers: petals golden yellow, 8.6–13.9(–17.4) × 2.9–4.7(–6.1) mm, apex rounded, glabrous abaxially; stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 6.7–13.2(–15.4) × 1.7–4.3 mm, usually without, rarely with, anthers, second whorl with anthers; anthers straight after dehiscence, epidermis smooth; styles 4.8–11.3 mm. Capsules cup-shaped, 6.2–11.4(–13) × 6–8.4 mm, base rounded, not longitudinally ridged. Seeds: coat anticlinal cell walls wavy, papillae 5–13 per cell. 2n = 20.
Phenology: Flowering May–Sep.
Habitat: Roadsides, outcrops, hillsides, washes, dunes, sandy, gravelly, or volcanic soils.
Elevation: 800–1800 m.
Distribution
Ariz., Nev., Utah.
Discussion
Mentzelia integra is found in northwestern Arizona, southeastern Nevada, and southwestern Utah.
Selected References
None.