Difference between revisions of "Euphrasia arctica"
Bot. Tidsskr. 4: 47. 1870.
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| − | |distribution= | + | |distribution=B.C.;N.B.;N.S.;Nfld. and Labr. (Nfld.);Ont.;P.E.I.;Que.;Maine;Europe;Atlantic Islands (Iceland). |
|discussion=<p>Subspecies 5 (2 in the flora).</p><!-- | |discussion=<p>Subspecies 5 (2 in the flora).</p><!-- | ||
--><p>The other three subspecies of <i>Euphrasia arctica</i> occur in Europe (P. F. Yeo 1978).</p> | --><p>The other three subspecies of <i>Euphrasia arctica</i> occur in Europe (P. F. Yeo 1978).</p> | ||
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|basionyms= | |basionyms= | ||
|family=Orobanchaceae | |family=Orobanchaceae | ||
| − | |distribution= | + | |distribution=B.C.;N.B.;N.S.;Nfld. and Labr. (Nfld.);Ont.;P.E.I.;Que.;Maine;Europe;Atlantic Islands (Iceland). |
|reference=None | |reference=None | ||
|publication title=Bot. Tidsskr. | |publication title=Bot. Tidsskr. | ||
|publication year=1870 | |publication year=1870 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V17/V17_842.xml |
|genus=Euphrasia | |genus=Euphrasia | ||
|species=Euphrasia arctica | |species=Euphrasia arctica | ||
Revision as of 21:28, 27 May 2020
Stems simple or branched, to 25(–35) cm; branches 1–5(or 6) pairs, from proximal, middle, or distal cauline nodes; cauline internode lengths 2–4 times subtending leaves. Leaves: blade usually broadly ovate, 3–16 mm, margins serrate, teeth 1–6 pairs, apices acute. Inflorescences beginning at node 3–5; bracts green or purplish adaxially, broader than leaves, broadly ovate or deltate, length not more than 2 times width, (4–)5–9(–11) mm, surfaces glabrous or setose and hairs eglandular, sometimes pubescent and hairs glandular, stalks 1- or 2-celled, 0.1–0.2 mm, teeth 3–6 pairs, as long as or much longer than wide, apices acute to acuminate. Flowers: corolla white, sometimes lilac, adaxial lip lilac, 6–11(–13) mm, abaxial lip exceeding adaxial. Capsules oblong to elliptic or obovate, 4.5–8 mm, apex truncate to retuse.
Distribution
B.C., N.B., N.S., Nfld. and Labr. (Nfld.), Ont., P.E.I., Que., Maine, Europe, Atlantic Islands (Iceland).
Discussion
Subspecies 5 (2 in the flora).
The other three subspecies of Euphrasia arctica occur in Europe (P. F. Yeo 1978).
Selected References
None.
Key
| 1 | Stem bases flexuous or decumbent; branches 1 or 2(–5) pairs, usually flexuous; bract surfaces glabrous or hairy, hairs eglandular bristles, teeth not much longer than wide; corollas 7–11(–13) mm. | Euphrasia arctica subsp. arctica |
| 1 | Stem bases erect; branches 1–5(or 6) pairs, usually straight; bract surfaces hairy, hairs glandular and eglandular bristles, teeth much longer than wide; corollas 6–8(–10) mm. | Euphrasia arctica subsp. borealis |