Difference between revisions of "Euphrasia arctica"
Bot. Tidsskr. 4: 47. 1870.
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|distribution=n North America;Europe;Atlantic Islands (Iceland). | |distribution=n North America;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 Euphrasia arctica 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> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1870 | |publication year=1870 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V17/V17_842.xml |
|genus=Euphrasia | |genus=Euphrasia | ||
|species=Euphrasia arctica | |species=Euphrasia arctica | ||
Revision as of 16:03, 18 September 2019
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
n North America, 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 |