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.

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

... 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 />) +
coriaceous +
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 +
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 (?) +
pale paper brown +
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 +