Anagallis minima

(Linnaeus) E. H. L. Krause in J. Sturm et al.

in J. Sturm et al., Deutschl. Fl. ed. 2, 9: 251. 1901 ,.

Common names: Chaffweed
Illustrated
Basionym: Centunculus minimus Linnaeus Sp. Pl. 1: 116. 1753
Synonyms: Anagallidastrum exiguum Bubani Micropyxis exigua (Bubani) Lunell
Treatment appears in FNA Volume 8. Treatment on page 307. Mentioned on page 306.

Plants annual. Stems erect, 0.1–0.4 (–1) dm. Leaves alternate (proximal sometimes opposite); blade ovate or obovate, 1–5 (–11) × 1–5 mm. Pedicels absent or erect in fruit, to 1 mm, shorter than subtending leaf. Flowers: sepals 4–5, calyx divided to ca. 3/4, 1.5–3 mm, longer than corolla, margins entire or minutely crenulate, narrowly or not scarious, apex long-acuminate; petals 4–5, corolla white or pink, salverform (almost rotate) to slightly campanulate, 1.4–1.7 (–2) mm. Capsules 1.5–2 mm. Seeds 5–13.2n = 22 (Eurasia).


Phenology: Flowering spring–fall.
Habitat: Moist to dry roadsides, disturbed meadows, forest edges, stream banks, swales
Elevation: 0-300 m

Distribution

V8 615-distribution-map.gif

Alta., B.C., N.S., Sask., Ala., Ariz., Ark., Calif., Colo., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Kans., Ky., La., Md., Miss., Mo., Mont., Nebr., N.Mex., N.Dak., Ohio, Okla., Oreg., S.C., S.Dak., Tenn., Tex., Wash., W.Va., Wyo., Mexico, Eurasia, nearly cosmopolitan

Discussion

Canadian populations of Anagallis minima are found in the Columbia River region of southeastern British Columbia to the South Saskatchewan River region of Alberta and Saskatchewan. The species also occurs on the southern tip of Nova Scotia. It is scattered across the Great Plains of the United States and is historically reported from Minnesota and New York, where it was last collected in 1901 and 1878, respectively.

Selected References

None.

Lower Taxa

None.

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

... more about "Anagallis minima"
Anita F. Cholewa +
(Linnaeus) E. H. L. Krause in J. Sturm et al. +
mostly rounded +  and cuneate +
Centunculus minimus +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
sculpted +  and entire +
obovate;ovate +
1mm;5mm +
divided +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Chaffweed +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Alta. +, B.C. +, N.S. +, Sask. +, Ala. +, Ariz. +, Ark. +, Calif. +, Colo. +, Del. +, D.C. +, Fla. +, Ga. +, Idaho +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Md. +, Miss. +, Mo. +, Mont. +, Nebr. +, N.Mex. +, N.Dak. +, Ohio +, Okla. +, Oreg. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Wash. +, W.Va. +, Wyo. +, Mexico +, Eurasia +  and nearly cosmopolitan +
0-300 m +
curved +  and straight +
circumscissile +
globose +
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Moist to dry roadsides, disturbed meadows, forest edges, stream banks, swales +
nectariferous +
monomorphic +
crenulate +  and entire +
tenuinucellate +  and bitegmic +
anatropous;campylotropous +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
connate;proximally nearly distinct +
Flowering spring–fall. +
3-5-carpellate +
in J. Sturm et al., Deutschl. Fl. ed. +
papillate;alveolate +
Illustrated +
epipetalous +  and antipetalous +
branched +  and simple +
usually capitate;truncate +
rudimentary +
Anagallidastrum exiguum +  and Micropyxis exigua +
Anagallis minima +
Anagallis +
species +
annual +  and perennial +