Difference between revisions of "Euphrasia tetraquetra"
Bull. Soc. Polymath. Morbihan 1862: 96. 1863.
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Euphrasia officinalis var. brébisson | |name=Euphrasia officinalis var. brébisson | ||
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| + | |publication_title=Fl. Normandie ed. | ||
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| − | |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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V17/V17_851.xml |
|genus=Euphrasia | |genus=Euphrasia | ||
|species=Euphrasia tetraquetra | |species=Euphrasia tetraquetra | ||
Revision as of 18:32, 24 September 2019
Stems branched, sometimes simple, to 12(–18) cm; branches 1–3(–5), from middle and distal, sometimes basal, nodes; cauline internode lengths 0.8–1.5 times subtending leaves. Leaves: blade +/- ovate, 2–8(–11) mm, margins serrate-dentate, teeth 2 or 3(–6) pairs, apices subacute to acute. Inflorescences densely spicate, sometimes 4-angled, beginning at node 3–5(–7); bracts light to dark green, broader than leaves, ovate to obovate, length not more than 2 times width, (4–)5–7(–9) mm, glossy, surfaces glabrous or hairy and hairs eglandular bristles on veins, teeth 4 or 5 pairs, as long as or longer than wide, apices acute, sometimes aristate, sinuses between teeth acute. Flowers: calyx lobes straight, apex acute; corolla white, adaxial lip sometimes tinged lilac, 4–5 mm, abaxial lip exceeding adaxial. Capsules oblong, 3–6 mm, apex truncate. 2n = 44 (England).
Phenology: Flowering summer.
Habitat: Grassy and gravelly places, coastal.
Elevation: 0–200 m.
Distribution
N.S., Ont., Que., Maine, n Europe.
Discussion
Selected References
None.