Spergularia echinosperma

Celakovský

Arch. Naturwiss. Landesdurchf. Bohmen 4: 867. 1881.

Common names:  Bristle-seed sand-spurrey  
Introduced
Treatment appears in FNA Volume 5. Treatment on page 22. Mentioned on page 17, 19.
Revision as of 09:24, 30 July 2020 by imported>Volume Importer
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Plants annual, delicate, 5–15 cm, stipitate-glandular throughout. Taproots slender. Stems erect to ascending, simple to diffusely branched proximally and distally; main-stem occasionally prostrate, 0.2–1.5 mm diam. proximally. Leaves: stipules inconspicuous, silvery to dull tan, broadly triangular, 1.4–2.4 mm, shorter than wide, apex acuminate; blade linear, 0.5–3.5 cm, somewhat fleshy, apex blunt to apiculate; axillary leaf cluster usually absent. Cymes commonly 4–8+-compound. Pedicels reflexed and oriented to 1 side in fruit. Flowers: sepals connate 0.2–0.3 mm proximally, lobes 1–3-veined, lanceolate to ovate, 2.5–3.6 mm, to 4 mm in fruit, margins 0.1–0.5 mm wide, apex rounded; petals white to pink or rosy, lanceolate, 0.4–0.6 times as long as sepals; stamens 1–4 (–5); styles 0.3–0.4 mm. Capsules greenish to tan, 2.8–4 mm, 0.9–1.4 times as long as sepals. Seeds reddish-brown to blackish, silver tinged, with submarginal groove, pyriform, ± compressed, 0.5–0.7 (–0.8) mm, shiny, slightly roughened, with dense, gland-tipped papillae and appearing echinate (30×); wing usually absent, whitish to reddish-brown, 0.1–0.2 mm wide, margins irregular and not papillate. 2n = 18, 36 (both Europe).


Phenology: Flowering spring.
Habitat: Dunes, clay flats, sandy river banks
Elevation: 0-20+ m

Distribution

V5 35-distribution-map.gif

Introduced; Ala., Ga., La., Tex., Europe

Discussion

Selected References

None.

Lower Taxa

None.

"-1.4timesaslongassepals" is not declared as a valid unit of measurement for this property.

... more about "Spergularia echinosperma"
perigynous +  and hypogynous +
rounded;blunt;apiculate +
Ronald L. Hartman +  and Richard K. Rabeler +
Celakovský +
Arenaria subg. Spergularia +
threadlike +  and linear +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
smaller +
greenish;tan +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
 Bristle-seed sand-spurrey   +
4-8+-compound +
dish--shaped +
expanded +
Ala. +, Ga. +, La. +, Tex. +  and Europe +
0-20+ m +
peripheral +
unisexual +  and bisexual +
stalked +  and simple +
Dunes, clay flats, sandy river banks +
dish or cupshaped +
cup-shaped +  and dish +
0-8+-compound +, simple +  and branching +
cluster +  and opposite +
distinct +
lanceolate +  and ovate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
not papillate +
0.1mm +  and 0.5mm +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
oriented;reflexed +
perigynous +  and hypogynous +
white +  and pink or rosy +
fugacious +
0.4-0.6 times as long as sepals +
lanceolate +
Flowering spring. +
Arch. Naturwiss. Landesdurchf. Bohmen +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
silver tinged;reddish-brown;blackish +
smooth +  and variously sculptured +
compressed +  and pyriform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
membranous +
not +  and hooded +
persistent +
lanceolate;ovate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
Introduced +
1 +  and 4 +
simple +  and diffusely branched +
erect;ascending +
[30 +  and 3 +
papillate +
silvery +  and dull tan +
inconspicuous +
triangular +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
nearly +  and distinct +
filiform +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Delia +  and Lepigonum +
Spergularia echinosperma +
Spergularia +
species +
divided +
not rhizomatous +  and taprooted +
stipitate-glandular +
whitish +  and reddish-brown +
0.1mm +  and 0.2mm +