Crataegus scabrida var. asperifolia

(Sargent) Kruschke

Publ. Bot. Milwaukee Public Mus. 3: 170. 1965.

Endemic
Basionym: Crataegus asperifolia Sargent Rhodora 3: 31. 1901
Synonyms: C. brainerdii var. asperifolia (Sargent) Eggleston
Treatment appears in FNA Volume 9. Treatment on page 524.

Leaf-blades trullate or broadly trullate, 5–8 cm, adaxial surface densely scabrous-pubescent, glabrescent. Inflorescence branches densely villous, variably glabrescent by anthesis. Flowers: hypanthium pubescent.


Phenology: Flowering May–Jun; fruiting Sep–Oct.
Habitat: Brush, roadsides, woodland edges
Elevation: 50–900 m

Distribution

V9 887-distribution-map.jpg

Ont., Mass., Mich., N.H., N.Y., Vt., Va., Wis.

Discussion

Variety asperifolia, like var. scabrida, has a wide range from the southern Great Lakes area to the Virginia Blue Ridge. It is particularly distinct, thus perhaps worthy of specific rank, and may be locally common.

Selected References

None.

Lower Taxa

None.
glabrescent +  and scabrous-pubescent +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
James B. Phipps +
(Sargent) Kruschke +
compound +  and simple +
opposite +  and alternate +
rounded +  and cuneate +
Crataegus asperifolia +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
less ovate or rhombic-elliptic +  and rhombic-elliptic +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
short-ovate +  and ovate broadly elliptic +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
villous +  and glabrous +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ont. +, Mass. +, Mich. +, N.H. +, N.Y. +, Vt. +, Va. +  and Wis. +
not +  and aggregated +
50–900 m +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 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 />) +
gray +, tan +  and deep reddish-brown +
older +, old +  and new +
Brush, roadsides, woodland edges +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
glabrescent +  and villous +
crassinucellate +
deciduous +
craspedodromous +
glandular-serrate +  and subentire +
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 +
sessile-glandular +  and eglandular +
glabrous +  and pubescent +
Flowering May–Jun +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
orange-red +  and reddish +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
pubescent +  and glabrous +
suborbicular +
Publ. Bot. Milwaukee Public Mus. +
not arillate +
persistent +
free +  and distinct +
glandular-serrate +  and subentire +
triangular +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
C. brainerdii var. asperifolia +
Crataegus scabrida var. asperifolia +
Crataegus scabrida +
variety +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
dark-brown +  and nearly black +
slender +  and stout +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
less erect +  and oblique +
1 +  and several +
reddish-brown +  and dark +
determinate +
stout +  and more or less slender +
5 +  and 7 +