View source for Mentzelia asperula

{{Treatment/ID
|accepted_name=Mentzelia asperula
|accepted_authority=Wooton & Standley
|publications={{Treatment/Publication
|title=Contr. U.S. Natl. Herb.
|place=16: 148. 1913
|year=1913
}}
|common_names=Mountain stickleaf;Organ Mountain blazingstar
|basionyms=
|synonyms=
|hierarchy=Loasaceae;Mentzelia;Mentzelia sect. Mentzelia;Mentzelia asperula
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Loasaceae]]</div><div class="higher-taxon"><small>genus</small>[[Mentzelia]]</div><div class="higher-taxon"><small>section</small>[[Mentzelia sect. Mentzelia]]</div><div class="higher-taxon"><small>species</small>[[Mentzelia asperula]]</div></div>
|volume=Volume 12
|mention_page=page 497, 527, 529
|treatment_page=page 528
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual, without caudices or tubers. <b>Stems</b> erect, to 25 cm. <b>Leaves</b>: petiole to 12 mm (proximal leaves), absent (distal leaves); blade usually ovate to hastate, or smallest distal elliptic or lanceolate, basally lobed or unlobed, to 4.5 × 3.5 cm, base cuneate or obtuse to truncate, margins serrate, apex acute. <b>Pedicels</b> (fruiting) 1–3 × 2 mm. <b>Flowers</b>: petals orange, 5–8 × 3–5 mm, apex cuspidate, hairy abaxially at apex; stamens 10–20, 5–8 mm, filaments monomorphic, filiform; style 3–5 mm. <b>Capsules</b> subcylindric to clavate, 12–25 × 3–5 mm, base tapering gradually, capsule and pedicel not well-differentiated. <b>Seeds</b> (7–)8–10(–12) per capsule, pyriform, without transverse folds. <b>2n</b> = 20, 40.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Oct.
|habitat=Rocky limestone or igneous slopes, arroyo bottoms, grasslands, oak woodlands.
|elevation=0–1800 m.
|distribution=Ariz.;N.Mex.;Tex.;n;c Mexico.
|discussion=<p>Populations consistent with the form and geographic region of the type specimen of <i>Mentzelia asperula</i> (collected in southwestern New Mexico) have been recovered in two clades of sect. <i>Mentzelia</i>. In one clade, <i>M. asperula</i> is closely related to <i>M. isolata</i>; in the second clade, it is closely related to M. gypsophila B. L. Turner of northern Mexico (J. Grissom 2014). The polyphyly of <i>M. asperula</i> likely represents convergence on rapid developmental times and small, self-fertilizing flowers. In southeastern Arizona, <i>M. asperula</i> can be difficult to distinguish from <i>M. isolata</i>; see the discussion of the latter for more information.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Mentzelia asperula
|authority=Wooton & Standley
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Loasaceae
|phenology=Flowering Aug–Oct.
|habitat=Rocky limestone or igneous slopes, arroyo bottoms, grasslands, oak woodlands.
|elevation=0–1800 m.
|distribution=Ariz.;N.Mex.;Tex.;n;c Mexico.
|reference=None
|publication title=Contr. U.S. Natl. Herb.
|publication year=1913
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V12/V12_834.xml
|genus=Mentzelia
|section=Mentzelia sect. Mentzelia
|species=Mentzelia asperula
}}<!--

-->[[Category:Treatment]][[Category:Mentzelia sect. Mentzelia]]