View source for Perityle ambrosiifolia

{{Treatment/ID
|accepted_name=Perityle ambrosiifolia
|accepted_authority=Greene ex A. M. Powell & Yarborough
|publications={{Treatment/Publication
|title=Phytologia
|place=76: 325, fig. 1. 1994
|year=1994
}}
|common_names=Lace-leaved rock daisy
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Peritylinae;Perityle;Perityle sect. Laphamia;Perityle ambrosiifolia
|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 Peritylinae]]</div><div class="higher-taxon"><small>genus</small>[[Perityle]]</div><div class="higher-taxon"><small>section</small>[[Perityle sect. Laphamia]]</div><div class="higher-taxon"><small>species</small>[[Perityle ambrosiifolia]]</div></div>
|volume=Volume 21
|mention_page=page 324
|treatment_page=page 331
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>or subshrubs, 10–30 cm (stems brittle, densely leafy); usually villous, often with glandular hairs, sometimes pilose. <b>Leaves</b>: petioles 5–10 mm; blades 3-partite or compound-pinnatifid, 15–35 × 15–30 mm, lobes lobed, cleft, parted, or divided, ultimate margins crenate. <b>Heads</b> in corymbiform arrays, 7–10 × 6–11 mm. <b>Peduncles</b> 3–10 mm. <b>Involucres</b> campanulate. <b>Phyllaries</b> 14–20, linear to linear-lanceolate, 6–9 × 0.5–1.2(–2) mm (apices usually short-attenuate, sometimes acute). <b>Ray</b> florets usually 0 (sometimes 1–2 reduced rays in isolated heads, laminae color unknown, 3–5 × 1.5–2 mm). <b>Disc</b> florets 25–45; corollas yellow, tubes 1–1.2 mm, throats tubular to narrowly funnelform, 2–2.5 mm, lobes 0.6–0.8 mm. <b>Cypselae</b> narrowly oblanceolate, 3–4 mm, margins thin-calloused, short-hairy; pappi usually 0, sometimes of 1–3 moderately stout bristles 2.8–4.5 mm, often plus hyaline, laciniate scales. <b>2n</b> = ca. 17.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–fall.
|habitat=Rock crevices, cliff faces, and canyons
|elevation=1000–1500 m
|distribution=Ariz.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Perityle ambrosiifolia</i> occurs in the vicinity of Clifton and Morenci in Greenlee County. Most heads are discoid; 1 or 2 ray florets sometimes appear on isolated heads; color of the laminae is not known; only dried specimens without the ray color noted have been examined. The species was first recognized by E. L. Greene in 1900; no record exists that the species as proposed by him was formally published. <i>Perityle ambrosiifolia</i> is morphologically and geographically distinct from <i>P. lemmonii</i> and may have resulted from either intrasectional or intersectional hybridization between two of several possible taxa.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Perityle ambrosiifolia
|authority=Greene ex A. M. Powell & Yarborough
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering spring–fall.
|habitat=Rock crevices, cliff faces, and canyons
|elevation=1000–1500 m
|distribution=Ariz.
|reference=None
|publication title=Phytologia
|publication year=1994
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_826.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae
|genus=Perityle
|section=Perityle sect. Laphamia
|species=Perityle ambrosiifolia
}}<!--

-->[[Category:Treatment]][[Category:Perityle sect. Laphamia]]