Arenaria lanuginosa var. lanuginosa

Illustrated
Synonyms: Arenaria lanuginosa var. longipedunculata
Treatment appears in FNA Volume 5. Treatment on page 53.
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Stems often 1–10, prostrate to trailing. Inflorescences axillary, solitary flowers. Pedicels straight to widely divergent, often hooked distally in fruit, 25–40 mm. Petals 1/2–3/4 times as long as sepals or absent. 2n = 44 (South America).


Phenology: Flowering spring–summer.
Habitat: Forests, limestone outcrops, moist hummocks, dunes
Elevation: 0-200 m

Distribution

V5 104-distribution-map.gif

Ala., Fla., Ga., La., Miss., N.C., S.C., Tenn., Tex., Va., Mexico, Central America, South America

Discussion

Variety lanuginosa occurs through much of Mexico, mostly in the mountainous areas. We find material from the southeastern United States to be indistinguishable from many Mexican specimens.

Variety longipedunculata was described from two populations in Georgia and represents plants with particularly long pedicels, 40–50 mm, but this range overlaps that found otherwise in var. lanuginosa.

Selected References

None.

Lower Taxa

None.

"/5-11/2timesaslongassepals" is not declared as a valid unit of measurement for this property."/3-8+timesaslongasleaves" is not declared as a valid unit of measurement for this property."/4-3/4timesaslongasmidvein" is not declared as a valid unit of measurement for this property."/2-3/4timesaslongassepals" is not declared as a valid unit of measurement for this property.

not pustulate +  and pustulate +
Ronald L. Hartman +, Richard K. Rabeler +  and Frederick H. Utech +
(Michaux) Rohrbach in C. F. P. von Martius et al. +
Spergulastrum lanuginosum +
Laciniate (?) +, Emarginate (?) +, Jagged (?) +, 2-fid (?) +  and Entire (?) +
linear-lanceolate +  and usually elliptic +
smaller +
herbaceous +  and scarious +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1-80+-flowered +
dish--shaped +
expanded +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +, Tenn. +, Tex. +, Va. +, Mexico +, Central America +  and South America +
0-200 m +
straight +  and curved +
central +  and peripheral +
inconspicuous +
unisexual +  and bisexual +
lanceolate +  and ovate +
0 cm0 mm <br />0 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
stalked +  and simple +
Forests, limestone outcrops, moist hummocks, dunes +
minute +
disc--shaped +  and dish +
in lines +  and pubescent +
terete +  and angular +
sessile +  and petiolate +
connate +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
erect;ascending +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
fugacious +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering spring–summer. +
in C. F. P. von Martius et al., Fl. Bras. +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
tuberculate +, rugulose +  and smooth +
compressed +  and suborbicular +
persistent +
connate +  and distinct +
lanceolate;broadly ovate +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Illustrated +
grooved +, branched +  and simple +
prostrate to trailing +  and procumbent +
prostrate;trailing +
terete;ellipsoid +
5 cm50 mm <br />0.05 m <br /> (60 cm600 mm <br />0.6 m <br />) +
[30 +  and 3 +
papillate +
distinct +
filiform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Arenaria lanuginosa var. longipedunculata +
Arenaria lanuginosa var. lanuginosa +
Arenaria lanuginosa +
variety +
ascending;recurved +
divided +
10 +  and 8 +
0.3 cm3 mm <br />0.003 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
2mm;14mm +
rhizomatous +  and taprooted +
plant +  and not matted +
pubescence of simple hairs or stalked glands +  and glabrous +
11 +, 10 +, 8 +  and [7 +