View source for Erigeron engelmannii

{{Treatment/ID
|accepted_name=Erigeron engelmannii
|accepted_authority=A. Nelson
|publications={{Treatment/Publication
|title=Bull. Torrey Bot. Club
|place=26: 247. 1899
|year=1899
}}
|common_names=Engelmann’s fleabane
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron engelmannii
|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 engelmannii]]</div></div>
|volume=Volume 20
|mention_page=page 259, 270
|treatment_page=page 290
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 3–20(–30) cm; taprooted, caudex branches relatively short and thick. <b>Stems</b> erect, loosely to closely, sparsely to moderately strigose (hairs 0.1–0.9 mm), usually minutely glandular (glands barely evident), sometimes eglandular. <b>Leaves</b> basal (usually persistent) and cauline (petioles prominently ciliate at least on proximal portions, hairs spreading, thick-based); basal blades linear-oblanceolate, 20–100 × 1–4 mm, margins entire, faces strigose, eglandular; cauline usually restricted to proximal 1/2 of stems, slightly reduced distally. <b>Heads</b> 1(–3). <b>Involucres</b> 3.5–5(–6) × 7–12 mm. <b>Phyllaries</b> in 2–3(–4) series, coarsely hirsuto-villous, sparsely to moderately minutely glandular. <b>Ray</b> florets (35–)45–100; corollas white, sometimes pink or bluish, 5–10 mm, laminae (0.8–1.1 mm wide) primarily reflexing, sometimes also weakly coiling at the tips. <b>Disc</b> corollas (2.5–)2.7–4.2 mm (throats indurate and inflated, densely puberulent). <b>Cypselae</b> 1.4–1.8 mm (oblong), 2-nerved, faces sparsely strigose; pappi: outer usually of narrow scales, sometimes 0 or of setae, inner of 12–20 bristles.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Apr–)May–Jul.
|habitat=Dry, sandy or rocky sites, prairies, often with sagebrush, rabbitbrush, juniper, pinyon-juniper, salt desert shrub
|elevation=1300–2500 m
|distribution=Colo.;Idaho;Utah;Wyo.
|discussion=<p>Plants from Chaffee and Fremont counties, Colorado, have strigose leaves and the compact habit of <i>Erigeron engelmannii</i> but sparsely spreading-hirsute stems; they may be intermediate between <i>E. engelmannii</i> and <i>E. concinnus</i>. Unusual variation in the pappi of <i>E. engelmannii</i> also suggests that the species needs study and better definition.</p><!--
--><p>A. Cronquist observed that “<i>Erigeron engelmannii</i> intergrades completely with <i>E. pumilus</i>, yet has two geographic subspecies of its own, and shows no distributional similarity to the [taxa] of <i>E. pumilus</i>,” and that <i>E. engelmannii</i> is “smaller and more delicate, with shorter finer hairs, and [has] smaller heads with usually fewer ligules.”</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Erigeron engelmannii
|authority=A. Nelson
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering (Apr–)May–Jul.
|habitat=Dry, sandy or rocky sites, prairies, often with sagebrush, rabbitbrush, juniper, pinyon-juniper, salt desert shrub
|elevation=1300–2500 m
|distribution=Colo.;Idaho;Utah;Wyo.
|reference=None
|publication title=Bull. Torrey Bot. Club
|publication year=1899
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V20_608.xml
|tribe=Asteraceae tribe Astereae
|genus=Erigeron
|species=Erigeron engelmannii
}}<!--

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