View source for Mentzelia pectinata

{{Treatment/ID
|accepted_name=Mentzelia pectinata
|accepted_authority=Kellogg
|publications={{Treatment/Publication
|title=Proc. Calif. Acad. Sci.
|place=3: 40, fig. 9. 1863
|year=1863
}}
|common_names=San Joaquin blazingstar
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Loasaceae;Mentzelia;Mentzelia sect. Trachyphytum;Mentzelia pectinata
|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. Trachyphytum]]</div><div class="higher-taxon"><small>species</small>[[Mentzelia pectinata]]</div></div>
|volume=Volume 12
|mention_page=page 533, 543
|treatment_page=page 541
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>candelabra-form, (8–)20–50(–60) cm. <b>Basal</b> leaves persisting; petiole present or absent; blade lanceolate to linear, margins deeply to shallowly lobed. <b>Cauline</b> leaves: petiole absent; blade ovate to linear, to 12 cm, margins deeply lobed to dentate. <b>Bracts</b> green, ovate to lanceolate, 6.6–12.8 × 1.9–6.8 mm, width 1/5–2/3 length, not concealing capsule, margins 3–7-lobed. <b>Flowers</b>: sepals 3–13 mm; petals red to orange proximally, orange to yellow distally, 8–22 mm, apex mucronate, rounded, or retuse; stamens 20+, 4–11 mm, filaments monomorphic, filiform, unlobed; styles 5–13 mm. <b>Capsules</b> clavate, 12–35 × 2–4 mm, axillary curved to 90° at maturity, usually inconspicuously longitudinally ribbed. <b>Seeds</b> 20–40, in 2+ rows distal to mid fruit, tan, dark-mottled or not, usually irregularly polygonal, occasionally triangular prisms proximal to mid fruit, surface tuberculate under 10× magnification; recurved flap over hilum absent; seed coat cell outer periclinal wall domed, domes on seed edges more than 1/2 as tall as wide at maturity. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–May.
|habitat=Slopes of sandy or gray-white silty soils, grasslands, oak savannas, uncommonly juniper woodlands.
|elevation=200–1400 m.
|distribution=Calif.
|discussion=<p><i>Mentzelia pectinata</i> occurs in Kern, San Luis Obispo, Santa Barbara, and Tulare counties, around the southern rim of the San Joaquin Valley, extending into the Inner Coast Ranges and the southern foothills of the Sierra <i>Nevada</i>. Petal color varies from orange to yellow, and fully fertile artificial hybrids have been obtained between populations representing the extreme phenotypes (J. E. Zavortink 1966). Phylogenetic studies suggest that <i>M. pectinata</i> and <i>M. congesta</i> have hybridized to form several allopolyploid species (J. M. Brokaw and L. Hufford 2010b) despite their current allopatric distributions.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Mentzelia pectinata
|authority=Kellogg
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Loasaceae
|phenology=Flowering Mar–May.
|habitat=Slopes of sandy or gray-white silty soils, grasslands, oak savannas, uncommonly juniper woodlands.
|elevation=200–1400 m.
|distribution=Calif.
|reference=None
|publication title=Proc. Calif. Acad. Sci.
|publication year=1863
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_927.xml
|genus=Mentzelia
|section=Mentzelia sect. Trachyphytum
|species=Mentzelia pectinata
}}<!--

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