View source for Erigeron davisii

{{Treatment/ID
|accepted_name=Erigeron davisii
|accepted_authority=(Cronquist) G. L. Nesom
|publications={{Treatment/Publication
|title=Sida
|place=21: 22. 2004
|year=2004
}}
|common_names=Davis’s fleabane
|basionyms={{Treatment/ID/Synonym
|name=Erigeron engelmannii subsp. davisii
|authority=Cronquist
}}
|synonyms={{Treatment/ID/Synonym
|name=Erigeron engelmannii var. davisii
|authority=(Cronquist) Cronquist
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron davisii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Erigeron]]</div><div class="higher-taxon"><small>species</small>[[Erigeron davisii]]</div></div>
|volume=Volume 20
|mention_page=page 259, 270, 271
|treatment_page=page 287
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 10–30 cm; taprooted, caudices simple or with relatively short, thick branches. <b>Stems</b> erect, hirsuto-villous to loosely strigose (hairs relatively translucent and vitreous, unequal in lengths, 0.1–1 mm), sometimes sparsely minutely glandular. <b>Leaves</b> mostly basal (persistent; petioles prominently ciliate, hairs spreading, thick-based), eglandular; blades linear to narrowly oblanceolate, 20–100 × 1–3.5 mm, abruptly reduced distally, margins entire, faces strigose to strigoso-hirsute, eglandular. <b>Heads</b> 1. <b>Involucres</b> 5–8 × 10–15 mm. <b>Phyllaries</b> in 2–3 series, loosely hirsute to hirsuto-villous, sometimes sparsely minutely glandular. <b>Ray</b> florets 50–80; corollas usually white, 8–14 mm, laminae (1.2–1.8 mm wide) coiling. <b>Disc</b> corollas 3.1–4 mm (glabrate, throats not indurate or inflated). <b>Cypselae</b> (obovoid) 2.1–2.5 mm, 2-nerved, faces sparsely to moderately strigoso-villous; pappi: outer of setae, inner of 14–20 bristles.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Apr–)May–Jul.
|habitat=Bare, rocky ridges and slopes, basalt outcrops, sparsely vegetated woodland openings or edges, commonly with grasses
|elevation=1200–1800 m
|distribution=Idaho;Oreg.
|discussion=<p>Of conservation concern.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Erigeron davisii
|author=
|authority=(Cronquist) G. L. Nesom
|rank=species
|parent rank=genus
|synonyms=Erigeron engelmannii var. davisii
|basionyms=Erigeron engelmannii subsp. davisii
|family=Asteraceae
|phenology=Flowering (Apr–)May–Jul.
|habitat=Bare, rocky ridges and slopes, basalt outcrops, sparsely vegetated woodland openings or edges, commonly with grasses
|elevation=1200–1800 m
|distribution=Idaho;Oreg.
|reference=None
|publication title=Sida
|publication year=2004
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V20_593.xml
|tribe=Asteraceae tribe Astereae
|genus=Erigeron
|species=Erigeron davisii
}}<!--

-->[[Category:Treatment]][[Category:Erigeron]]