Euphrasia stricta

J. P. Wolff ex J. F. Lehmann

Prim. Lin. Fl. Herbipol., 43. 1809.

Common names: Drug eyebright euphraise dressée
Introduced
Treatment appears in FNA Volume 17. Treatment on page 496. Mentioned on page 493.

Stems branched, rarely simple, to 30 cm; branches 1–5 pairs, from middle and distal cauline nodes; cauline internode length 0.5–2 times subtending leaves. Leaves: blade narrowly oblong to ovate-oblong, 2–9 (–12) mm, margins serrate, teeth 1–3 pairs, apices subacute to aristate. Inflorescences beginning at node (5–) 7–9 (–11); bracts green, sometimes purple adaxially, broader than leaves, oblong to ovate, length not more than 2 times width, 5–10 mm, surfaces glabrous or sparsely to densely hirsute and hairs eglandular, sometimes glandular-pubescent and hairs glandular, stalks 1-celled or 2-celled, 0.1–0.2 mm, teeth 4 or 5 pairs, longer than wide, apices acute, sometimes aristate. Flowers: corolla white, usually suffused with lilac, 8–10 mm, abaxial lip exceeding adaxial. Capsules narrowly oblong, 4.5–6 mm, apex truncate to retuse.

Distribution

Introduced; N.B., N.S., Ont., P.E.I., Que., Ill., Maine, Mass., Mich., Minn., N.H., N.Y., Pa., R.I., Vt., Wis., Europe, Asia (w Siberia)

Discussion

Varieties 7 (2 in the flora).

Occurrence of Euphrasia stricta in Alberta is based on the report by G. C. D. Griffiths (2002); no specimen has been located. Griffiths listed E. arctica subsp. borealis as new for Alberta, but both morphological and habitat descriptions fit E. stricta more closely. If true, then this introduced species has crossed the continent; all earlier records are from eastern Canada and New England (S. R. Downie and J. McNeill 1988).

Key

1 Bract surfaces glabrous or sparsely to densely hirsute, hairs eglandular. Euphrasia stricta var. stricta
1 Bract surfaces hairy, hairs glandular. Euphrasia stricta var. brevipila

"broader" is not a number.

... more about "Euphrasia stricta"
Truncate (?) +  and Retuse (?) +
Galina Gussarova +
J. P. Wolff ex J. F. Lehmann +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
narrowly oblong;ovate-oblong +
0.2 cm2 mm <br />0.002 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
not leathery +  and fleshy +
alternate +  and subopposite +
oblong +  and ovate +
1 +  and 5 +
tubular +  and flattened +
not accrescent +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.5-2 times subtending leaves +
Drug eyebright +  and euphraise dressée +
suffused with lilac +  and white +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Ill. +, Maine +, Mass. +, Mich. +, Minn. +, N.H. +, N.Y. +, Pa. +, R.I. +, Vt. +, Wis. +, Europe +  and Asia (w Siberia) +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
glandular-pubescent +
axillary +  and terminal +
deciduous +
triangular +
short-ciliate +  and glabrous +
incised +, dentate +  and crenate +
tenuinucellate +  and unitegmic +
campylotropous-like +
Prim. Lin. Fl. Herbipol., +
downie1988b +
10 +  and 18 +
fusiform +
Introduced +
2-celled +  and 1-celled +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
subequal +
simple +  and branched +
aerial +  and subterranean +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
not fleshy +
glabrous or;sparsely densely hirsute +
Euphrasia stricta +
Euphrasia +
species +
longer than wide +
5 +, 4 +, 1 +  and 3 +