Euphrasia micrantha

Reichenbach

Fl. Germ. Excurs., 358. 1830.

Common names: Northern eyebright
Introduced
Synonyms: Euphrasia gracilis (Fries) Fries
Treatment appears in FNA Volume 17. Treatment on page 497. Mentioned on page 494.

Stems simple or branched, to 18 cm; branches 1–4 pairs, from middle or distal cauline nodes; cauline internode lengths 2–3 times leaves. Leaves: blade ovate or elliptic, 3–10 mm, margins serrate, teeth 1–5 pairs, apices subacute to acute. Inflorescences sparsely spicate, not 4-angled, beginning at node 7–11; bracts green, purple, or blackish purple, broader than leaves, oblong to ovate, length not more than 2 times width, 4–8 mm, glossy, margins ciliate, surfaces glabrous and hairs eglandular, teeth 3–5 pairs, longer than wide, apices acute. Flowers: corolla white to violet, 4.5–6.5 mm, lips moreorless equal. Capsules oblong or elliptic, 4–5.5 mm, apex truncate to retuse. 2n = 44 (Iceland).


Phenology: Flowering summer–fall.
Habitat: Grassy places, roadsides, abandoned railways and gravel pits, disturbed shorelines, wood margins.
Elevation: 0–1200 m.

Distribution

Introduced; N.S., Ont., Mass., Europe

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Euphrasia micrantha"
Truncate (?) +  and Retuse (?) +
Galina Gussarova +
Reichenbach +
elliptic;ovate +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not leathery +  and fleshy +
alternate +  and subopposite +
blackish purple +  and purple +
oblong +  and ovate +
1 +  and 4 +
tubular +  and flattened +
not accrescent +
elliptic;oblong +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
2-3 times leaves +
Northern eyebright +
white +  and violet +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
N.S. +, Ont. +, Mass. +  and Europe +
0–1200 m. +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Grassy places, roadsides, abandoned railways and gravel pits, disturbed shorelines, wood margins. +
axillary +  and terminal +
deciduous +
triangular +
short-ciliate +  and glabrous +
incised +, dentate +  and crenate +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering summer–fall. +
Fl. Germ. Excurs., +
10 +  and 18 +
fusiform +
Introduced +
subequal +
branched +  and simple +
aerial +  and subterranean +
0 cm0 mm <br />0 m <br /> (18 cm180 mm <br />0.18 m <br />) +
not fleshy +
Euphrasia gracilis +
Euphrasia micrantha +
Euphrasia +
species +
longer than wide +
3 +  and 5 +