Holosteum umbellatum subsp. umbellatum

WeedyIntroducedIllustrated
Treatment appears in FNA Volume 5. Treatment on page 95.

Stems (1–) 4–35 cm, glabrous to or often glandular-pubescent, especially proximally, often glaucous. Leaves: basal blades oblanceolate, 5–25 mm; cauline leaves in 1–4 pairs, blade 2–30 mm, margins ciliate. Flowers: sepals 2.5–4.5 mm; petals 3–5 mm. Capsules 4–8 mm. 2n = 20, 40 (both Europe).


Phenology: Flowering late winter–early spring.
Habitat: Lawns, roadsides, waste places
Elevation: 50-1700 m

Distribution

V5 199-distribution-map.gif

Introduced; B.C., N.B., Ont., Ala., Ark., Calif., Colo., Conn., Del., D.C., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., Md., Mass., Mich., Mo., Mont., Nebr., Nev., N.J., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Utah, Va., Wash., W.Va., Wis., Wyo., Europe (e Mediterranean region), c, sw Asia, Africa (Mediterranean region), in South America (Argentina), w Europe, Africa (Republic of South Africa)

Discussion

Selected References

None.

Lower Taxa

None.
acute;obtuse +
Richard K. Rabeler +  and Ronald L. Hartman +
Linnaeus +
oblanceolate +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
oblanceolate +  and spatulate or elliptic +
0.2 cm2 mm <br />0.002 m <br /> (3 cm30 mm <br />0.03 m <br />) +
succulent +
reduced +
herbaceous +  and scarious +
ovoid;cylindric +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
dish--shaped +
expanded +
B.C. +, N.B. +, Ont. +, Ala. +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, D.C. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Md. +, Mass. +, Mich. +, Mo. +, Mont. +, Nebr. +, Nev. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Utah +, Va. +, Wash. +, W.Va. +, Wis. +, Wyo. +, Europe (e Mediterranean region) +, c +, sw Asia +, Africa (Mediterranean region) +, in South America (Argentina) +, w Europe +  and Africa (Republic of South Africa) +
50-1700 m +
inconspicuous +
unisexual +  and bisexual +
stalked +  and simple +
Lawns, roadsides, waste places +
disc--shaped +  and dish +
sessile +  and petiolate +
connate +
not apparent +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
erect;reflexed +
white +  and pink +
fugacious +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering late winter–early spring. +
orange;brown +
papillate +
compressed +, shield--shaped +  and oblong +
persistent +
distinct +
lanceolate;ovate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Weedy +, Introduced +  and Illustrated +
3 +  and 5 +
branched +  and simple +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
ascending;erect +
glaucous +, glandular-pubescent +  and glabrous +
4 cm40 mm <br />0.04 m <br /> (35 cm350 mm <br />0.35 m <br />) +
subterminal +
[50 +  and 3 +
papillate +
distinct +
clavate +  and filiform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Holosteum umbellatum subsp. umbellatum +
Holosteum umbellatum +
subspecies +
divided +
10 +  and 8 +
rhizomatous +  and taprooted +
winter-annual +  and annual +
pubescence of simple hairs or stalked glands +  and glabrous +