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Overview

Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Localities documented in Tropicos sources

Stellaria alsine var. alsine :
Bhutan (Asia)
India (Asia)
Japan (Asia)
Nepal (Asia)
Pakistan (Asia)
South Korea (Asia)
Vietnam (Asia)
China (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Stellaria alsine var. phaenopetala Hand.-Mazz.:
Japan (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Stellaria alsine Grimm:
Bhutan (Asia)
Canada (North America)
Chile (South America)
Germany (Europe)
India (Asia)
Japan (Asia)
Nepal (Asia)
Pakistan (Asia)
South Korea (Asia)
United States (North America)
Vietnam (Asia)
China (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangsu, Jiangxi, Nei Mongol, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bhutan, India, Japan, Kashmir, Korea, Nepal, Pakistan, Vietnam; Europe].
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St. Pierre and Miquelon; B.C., N.B., Nfld. and Labr. (Nfld.), N.S., P.E.I., Que.; Del., D.C., Ga., La., Maine, Md., Mass., Minn., N.H., N.J., N.Y., N.C., Ohio, Pa., Tenn., Vt., Wash., W.Va.; Europe; introduced in South America (Chile).
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Physical Description

Morphology

Description

Plants perennial, creeping, rhi-zomatous. Stems decumbent and ascending, branched, smoothly 4-angled, 10-40 cm, glabrous. Leaves sessile; blade narrowly elliptic, elliptic-lanceolate, or oblanceolate, 0.5-2(-3) cm × 2-10(-13) mm, base cuneate, margins thin with reticulate venation, entire, apex acute, glabrous, slightly ciliate basally. Inflorescences axillary with 1-5-flowered cymes in mid and distal axils of foliage leaves; bracts lanceolate, ca. 1 mm, scarious with green midrib. Pedicels 5-30 mm, glabrous. Flowers ca. 6 mm diam.; sepals 5, 3-veined, lanceolate-triangular, 2.5-3.5 mm, margins scarious, apex acute, glabrous; petals 5, 1.5-3 mm, shorter than (rarely equaling) sepals, blade apex 2-fid almost to base, with widely divergent lobes; stamens 10; styles 3, ca. 1 mm. Capsules green, ovoid, 2.5-3.5 mm, equaling sepals, apex broadly acute; carpophore absent. Seeds pale reddish brown, ± reniform, 0.3-0.4 mm diam., with small tubercles. 2n = 24.
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Description

Herbs annual, glabrous. Stems tufted, slightly diffuse, ascending, 15--25(--35) cm tall, much branched. Leaves sessile, lanceolate to oblong-lanceolate, (0.2--)0.5--2 cm × (1--)2--4 mm, basally sparsely ciliate, both surfaces slightly pinkish green, base cuneate, semiclasping, margin cartilaginous, slightly undulate, apex acuminate. Flowers 3--5 in cymes or solitary, terminal or axillary. Pedicel 0.5--2 cm, slender, glabrous, slightly declinate in fruit. Sepals 5, lanceolate, 2--4 × ca.1 mm, glabrous, midvein raised, margin membranous, apex acuminate. Petals 5, shorter than or subequaling sepals, 2-cleft nearly to base; lobes linear, apex obtuse. Stamens 5(--10), slightly shorter than petals. Ovary ovoid; styles 3, sometimes 2, linear, short. Capsule ovoid-orbicular, subequaling or slightly longer than persistent sepals, 6-valved. Seeds numerous, brown, reniform, slightly compressed, rugulose. Fl. May--Jun, fr. Jul--Aug. 2n = 24, 26, 46.
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Diagnostic Description

Synonym

Alsine uliginosa (Murray) Britton; Stellaria uliginosa Murray
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Ecology

Habitat

Streamsides, flushes, wet tracks, ditches; 0-300m.
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Fields, streamsides, wetlands; 500--4000 m.
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Associations

In Great Britain and/or Ireland:
Foodplant / parasite
aggregated, immersed, honey-fuscous, narrowly dark circled around the pore pycnidium of Ascochyta coelomycetous anamorph of Ascochyta stellariae parasitises fading leaf of Stellaria uliginosa
Remarks: season: 5

Foodplant / open feeder
larva of Hypera diversipunctata grazes on leaf of Stellaria uliginosa

Foodplant / parasite
solitary or in small groups, stipitate apothecium of Lanzia stellariae parasitises living stem (lower parts) of Stellaria uliginosa
Remarks: season: 5-10

Foodplant / pathogen
embedded sorus of Microbotryum stellariae infects and damages live anther of Stellaria uliginosa

Foodplant / saprobe
scattered, few, mainly epiphyllous pycnidium of Phyllosticta coelomycetous anamorph of Phyllosticta holosteae is saprobic on dead, bleached leaf of Stellaria uliginosa
Remarks: season: 7

Foodplant / parasite
hypophyllous telium of Puccinia arenariae parasitises live leaf of Stellaria uliginosa

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Life History and Behavior

Cyclicity

Flowering/Fruiting

Flowering spring-early summer.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Stellaria uliginosa

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Stellaria uliginosa

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 4
Specimens with Barcodes: 5
Species With Barcodes: 1
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Barcode data: Stellaria alsine

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Stellaria alsine

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 10
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: N4 - Apparently Secure

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Threats

Comments: Unknown causes of decline present a moderate threat (Southern Appalachian Species Viability Project 2002).

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Notes

Comments

Stellaria alsine is presumed to be native in eastern North America but has been introduced elsewhere in North America and Chile.
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