Difference between revisions of "Mentzelia hualapaiensis"
W. C. Hodgson & L. Hufford, Brittonia 62: 1, figs. 1, 2A,C–E. 2010.
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|elevation=400–1400 m. | |elevation=400–1400 m. | ||
|distribution=Ariz. | |distribution=Ariz. | ||
| − | |discussion=<p>Mentzelia hualapaiensis is distributed in Coconino and Mohave counties along the Grand Canyon and its side canyons between the Upper and Lower Granite Gorge.</p> | + | |discussion=<p><i>Mentzelia hualapaiensis</i> is distributed in Coconino and Mohave counties along the Grand Canyon and its side canyons between the Upper and Lower Granite Gorge.</p> |
|tables= | |tables= | ||
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name=Mentzelia hualapaiensis | name=Mentzelia hualapaiensis | ||
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|authority=J. J. Schenk | |authority=J. J. Schenk | ||
|rank=species | |rank=species | ||
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|publication year=2010 | |publication year=2010 | ||
|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_283.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. Stems multiple, erect, zigzag or straight; branches distal or along entire stem, distal longest or all ± equal, antrorse, upcurved; hairy. Leaves: blade 17–94 × 12–32 mm, widest intersinus distance 9.5–29 mm; proximal broadly spatulate to elliptic, margins serrate, teeth 6–12, slightly antrorse or perpendicular to leaf axis, 0.4–1.5 mm; distal broadly spatulate, elliptic, or obovate, base not clasping, margins serrate, teeth 8–10, slightly antrorse or perpendicular to leaf axis, 1–3.6 mm; abaxial surface with complex grappling-hook and occasionally with simple grappling-hook and needlelike trichomes, adaxial surface with needlelike trichomes. Bracts: margins entire. Flowers: petals white to light yellow, 9.4–17.4(–20) × 1.7–4.3 mm, apex acute to rounded, glabrous abaxially; stamens white to light yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 8.5–18 × 1–1.3(–2.9) mm, without anthers, second whorl with anthers; anthers straight after dehiscence, epidermis papillate; styles 5.8–9 mm. Capsules cup-shaped, 4.9–10.3 × 4.6–8.6 mm, base rounded, not longitudinally ridged. Seeds: coat anticlinal cell walls straight to slightly wavy, papillae 8–14 per cell.
Phenology: Flowering Mar–Jun(–Sep).
Habitat: Rocky desert scrub, gravelly canyon bottoms, steep travertine, shaley slopes associated with Muav limestone formations.
Elevation: 400–1400 m.
Discussion
Mentzelia hualapaiensis is distributed in Coconino and Mohave counties along the Grand Canyon and its side canyons between the Upper and Lower Granite Gorge.
Selected References
None.