Sagina nodosa subsp. nodosa

Common names: Sagine noueuse
Introduced
Synonyms: Sagina nodosa var. pubescens (Besser) Koch
Treatment appears in FNA Volume 5. Treatment on page 142.

Stems glandular-pubescent. Basal leaf-blades glandular-pubescent, especially on margins and midrib, or glabrous. Pedicels glandular-pubescent distally. Flowers: calyx base glandular-pubescent. 2n = 56.


Phenology: Flowering mid-late summer.
Habitat: Coastal, moist crevices of rocks along seashore and on sea cliffs, wet sand flats at river mouths
Elevation: 0-300 m

Distribution

V5 289-distribution-map.gif

Introduced; St. Pierre and Miquelon, N.B., Nfld. and Labr. (Nfld.), N.S., Maine, Mass., N.H., Europe

Discussion

Subspecies nodosa is probably introduced in North America. Its localities tend to be correlated with coastal regions that had an early history of fishing by Europeans; it may have been introduced with the dumping of ballast. It was collected at least once from New Hampshire where it apparently has been extirpated.

Some variation occurs in the amount and distribution of pubescence on the leaf surface in subsp. nodosa. In plants with a lesser amount of pubescence, the glandular hairs are restricted chiefly to the leaf margins; the leaves may even be glabrous. This seems to be the case primarily when subsp. nodosa and the native subsp. borealis occur in the same vicinity, such as some populations along the Saint Lawrence Seaway, Grand Manan Islands, New Brunswick, and Machaias, Maine. More typically, the plants are pubescent and the trichomes are more frequent along the veins on the abaxial surface as well as the leaf margins.

Selected References

None.

Lower Taxa

None.

"timessepallength" is not declared as a valid unit of measurement for this property.

glabrous +, glandular-pubescent +  and glandular +
Garrett E. Crow +
(Linnaeus) Fenzl +
glabrous +  and glandular-pubescent +
glandular-pubescent +  and glabrous +
Spergula nodosa +
Laciniate (?) +, Emarginate (?) +, Jagged (?) +, 2-fid (?) +  and Entire (?) +
subulate +  and linear +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
not +  and succulent +
reduced +
herbaceous +  and scarious +
glandular-pubescent +
1/4 +  and 1/2 +
globose;ovoid +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
minute +
Sagine noueuse +
conspicuous +
scarious +
dish--shaped +
expanded +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
St. Pierre and Miquelon +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Maine +, Mass. +, N.H. +  and Europe +
0-300 m +
straight +  and curved +
central +  and peripheral +
5-merous +  and 4-merous +
inconspicuous +
unisexual +  and bisexual +
stalked +  and simple +
Coastal, moist crevices of rocks along seashore and on sea cliffs, wet sand flats at river mouths +
disc--shaped +  and dish +
not stipulate +  and petiolate +
connate +
subulate +
fleshy +  and succulent +
purplish +  and hyaline +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
spreading;erect +
glandular-pubescent +
fugacious +
5 +  and 4 +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Flowering mid-late summer. +
Vers. Darstell. Alsin., +
pebbled +  and smooth +
compressed +, ovoid +  and reniform +
persistent +
distinct +
5 +  and 4 +
lanceolate;elliptic or orbiculate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Introduced +
10 (?) +  and 8 (?) +
with few-to-many lateral branches +  and simple +
procumbent +  and decumbent +
ascending;loosely spreading or prostrate +
not filiform +
subterminal +
[30 +, 5 +  and 4 +
papillate +
distinct +
5 (?) +  and 4 (?) +
list +  and count +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Sagina nodosa var. pubescens +
Sagina nodosa subsp. nodosa +
Sagina nodosa +
subspecies +
divided +
10 +  and 8 +
rhizomatous +  and taprooted +
glabrous +, pubescent +  and tufted +
11 +, 7 +  and 6 +