Crataegus monogyna

Jacquin

Fl. Austriac. 3: 50, plate 292, fig. 1. 1775.

Common names: English hawthorn one-seeded hawthorn aubépine monogyne
Introduced
Treatment appears in FNA Volume 9. Treatment on page 497. Mentioned on page 493, 496, 512, 635.

Distribution

V9 833-distribution-map.jpg

B.C., N.B., N.S., Ont., P.E.I., Que., Calif., Colo., Conn., Del., Ill., Ind., Maine, Mass., Mich., Minn., N.H., N.J., N.Y., Ohio, Oreg., Pa., R.I., Vt., Wash., Wis., Europe, w Asia, n Africa, also in South America, s Africa, Pacific Islands, Australia

Discussion

Varieties 2 (1 in the flora).

Crataegus monogyna was introduced early to North America to be used for agricultural hedges, a practice now discontinued on this continent.

Cultivar 'Crimson Cloud,' often under an incorrect species name, is widely cultivated as an ornamental.

Selected References

None.

... more about "Crataegus monogyna"
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
pink +  and purple +
James B. Phipps +
Jacquin +
exfoliating +
compound +  and simple +
opposite +  and alternate +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
broadly elliptic +  and obovate or ovate +
1.2 cm12 mm <br />0.012 m <br /> (6 cm60 mm <br />0.06 m <br />) +
adnate +  and distinct +
crowded +, scattered +  and alternate +
English hawthorn +, one-seeded hawthorn +  and aubépine monogyne +
B.C. +, N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Calif. +, Colo. +, Conn. +, Del. +, Ill. +, Ind. +, Maine +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, Ohio +, Oreg. +, Pa. +, R.I. +, Vt. +, Wash. +, Wis. +, Europe +, w Asia +, n Africa +, also in South America +, s Africa +, Pacific Islands +  and Australia +
not +  and aggregated +
0.8 cm8 mm <br />0.008 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
not +  and aggregated +
yellow +  and red or purplish +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
tomentose +  and glabrous +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
entire +  and serrate +
with small protuberances or pegs +, denticulate +  and entire +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
elliptic +  and circular +
0 (?) +  and 4 (?) +
free +  and distinct +
post-mature +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
0.6 cm6 mm <br />0.006 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
less orbicular +  and more or less cylindric +
Fl. Austriac. +
not arillate +
persistent +
free +  and distinct +
appressed +  and erect +
triangular +
1-50-flowered +  and few-leaved +
craspedodromous +
deep +  and shallow +
Introduced +
free +  and distinct +
branched +  and simple +
elongate +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus monogyna +
Crataegus (sect. Crataegus) ser. Crataegus +
species +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
curved +  and straight +
slender +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
exfoliating +
1 +  and few +
indeterminate +  and determinate +
2 +  and 8 +
tree +  and shrub +