View source for Pectis imberbis

{{Treatment/ID
|accepted_name=Pectis imberbis
|accepted_authority=A. Gray
|publications={{Treatment/Publication
|title=Smithsonian Contr. Knowl.
|place=5(6): 70. 1853
|year=1853
}}
|common_names=Tall or beardless chinchweed
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Pectidinae;Pectis;Pectis imberbis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Pectidinae]]</div><div class="higher-taxon"><small>genus</small>[[Pectis]]</div><div class="higher-taxon"><small>species</small>[[Pectis imberbis]]</div></div>
|volume=Volume 21
|mention_page=page 224, 230
|treatment_page=page 229
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 30–120 cm (caudices woody, 2–8+ mm diam.); herbage unscented. <b>Stems</b> erect, glabrous. <b>Leaves</b> narrowly linear, 10–50 × 1–2 mm (sometimes smaller, bractlike distally), margins with 0–1 pairs of setae, faces glabrous (abaxial dotted near each margin with a row of elliptic oil-glands ca. 0.3 mm). <b>Heads</b> borne singly or in open, cymiform arrays. <b>Peduncles</b> 10–80 mm. <b>Involucres</b> cylindric. <b>Phyllaries</b> distinct, linear-oblong, 5–9.5 × 1–1.5 mm (each dotted with 1–2 swollen, subapical oil-glands and a row of 2–3 linear, submarginal oil-glands on each side of midrib). <b>Ray</b> florets 5; corollas 6–11 mm (laminae often dotted near margins with inconspicuous oil-glands). <b>Disc</b> florets 4–7; corollas 3.7–6 mm (lobes 5, equal, each with 1 subterminal oil-gland). <b>Cypselae</b> 3.5–5 mm, puberulent (hair tips blunt); pappi of 1–3 stout awns 1–2 mm or coroniform. <b>2n</b> = 24.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Oct.
|habitat=Pine-oak-juniper woodlands, grasslands, arid shrublands
|elevation=1000–1700 m
|distribution=Ariz.;Mexico (Chihuahua;Sonora).
|discussion=<p><i>Pectis imberbis</i> occurs in relatively small, widely separated populations. Overgrazing may be a factor in the scarcity of these plants. They are generally more than 25 cm before they begin to flower and may be unable to reproduce under grazing pressure.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pectis imberbis
|authority=A. Gray
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering Aug–Oct.
|habitat=Pine-oak-juniper woodlands, grasslands, arid shrublands
|elevation=1000–1700 m
|distribution=Ariz.;Mexico (Chihuahua;Sonora).
|reference=None
|publication title=Smithsonian Contr. Knowl.
|publication year=1853
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_557.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae
|genus=Pectis
|species=Pectis imberbis
}}<!--

-->[[Category:Treatment]][[Category:Pectis]]