View source for Euphrasia disjuncta

{{Treatment/ID
|accepted_name=Euphrasia disjuncta
|accepted_authority=Fernald & Wiegand
|publications={{Treatment/Publication
|title=Rhodora
|place=17: 190. 1915
|year=1915
}}
|common_names=Polar eyebright;euphraise à aires disjointes
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Euphrasia arctica var. disjuncta
|authority=(Fernald & Wiegand) Cronquist
|rank=variety
}}
|hierarchy=Orobanchaceae;Euphrasia;Euphrasia disjuncta
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orobanchaceae]]</div><div class="higher-taxon"><small>genus</small>[[Euphrasia]]</div><div class="higher-taxon"><small>species</small>[[Euphrasia disjuncta]]</div></div>
|volume=Volume 17
|mention_page=page 492, 493, 494, 488, 564
|treatment_page=page 495
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>simple or branched, to 25 cm; branches 1–6 pairs, erect, from middle and distal cauline nodes; cauline internode lengths (2.5–)3–5 times subtending leaves. <b>Leaves</b>: blade broadly ovate, suborbiculate, or oval, 3–9(–11.5) mm, margins crenate to crenate-serrate, teeth 1–4(or 5), apices subacute to acute. <b>Inflorescences</b> sparsely spicate, not 4-angled, beginning at node 3–8; proximal internode lengths 1–3 times bracts; bracts purplish adaxially, broader than leaves, ovate to obovate, length not more than 2 times width, 5–8 mm, base cuneate, surfaces hirsute and hairs eglandular or pubescent and hairs glandular, stalks sometimes flexuous, 3–6-celled, 0.2–0.6 mm, teeth (2 or)3 or 4(or 5) pairs, longer than wide, apices acute, sinuses between teeth acute. <b>Flowers</b>: calyx lobes straight, apex acute; corolla white, 4–5.5 mm, lips +/- equal. <b>Capsules</b> oblong to elliptic, 4–5 mm, apex truncate to retuse.</span><!--

-->{{Treatment/Body
|phenology=Flowering mid summer–fall.
|habitat=Damp woods, gravel and ledges near streams, bogs.
|elevation=0–600 m.
|distribution=Nfld. and Labr.;N.S.;Nunavut;Que.;Maine.
|discussion=<p>The circumscription of <i>Euphrasia disjuncta</i> follows that of E. Hultén (1941–1950, vol. 7, 1968) and P. D. Sell and P. F. Yeo (1970). According to the protologue, <i>E. disjuncta</i> was understood as having a disjunct distribution in western and eastern North America. Western populations (Alberta, Northwest Territories, and Alaska) are treated here as the chiefly glandular-pubescent <i>E. subarctica</i>; eastern populations are treated as typically eglandular <i>E. disjuncta</i>. The holotype (Fernald, Wiegand & Darlington 6169, GH) comprises only eglandular individuals and thus unambiguously assigns the name. Both glandular and eglandular forms are found growing mixed together, similar to the situation in <i>E. subarctica</i>; see additional comments under 1. <i>E. subarctica</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphrasia disjuncta
|authority=Fernald & Wiegand
|rank=species
|parent rank=genus
|synonyms=Euphrasia arctica var. disjuncta
|basionyms=
|family=Orobanchaceae
|phenology=Flowering mid summer–fall.
|habitat=Damp woods, gravel and ledges near streams, bogs.
|elevation=0–600 m.
|distribution=Nfld. and Labr.;N.S.;Nunavut;Que.;Maine.
|reference=None
|publication title=Rhodora
|publication year=1915
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V17/V17_841.xml
|genus=Euphrasia
|species=Euphrasia disjuncta
}}<!--

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