Crataegus stolonifera

Sargent

Bot. Gaz. 35: 109. 1903.

Endemic
Synonyms: Crataegus iracunda var. stolonifera (Sargent) Kruschke
Treatment appears in FNA Volume 9. Treatment on page 570. Mentioned on page 568.

Shrubs, 25 dm. Stems: twigs: new growth golden green, glabrous, 1-year old reddish-brown, 2-years old gray; thorns on twigs usually recurved, 2-years old shiny reddish-brown or darker, ± slender, 3–5 cm. Leaves: petiole 1.5–2.5 cm, glabrous, sparsely glandular; blade ovate, 4–5 cm length/width = to 1.5, subcoriaceous, base cuneate to broadly cuneate (leaves on extension shoots broadly ovate to ovate-deltate or deltate, base nearly truncate), lobes 4 per side, sinuses moderately deep, lobe apex acute, margins serrate, veins 4 or 5 per side, apex acute to subacute, adaxial surface finely appressed-pubescent young, glabrescent; extension-shoot leaf-blades broadly ovate to ovate-deltate or deltate, widest in basal 1/4, nearly as long as wide, sinuses deep, LII 25–50%, base nearly truncate. Inflorescences 5–10-flowered; branches glabrous; bracteoles absent or few, margins glandular. Flowers 15–18 mm diam.; hypanthium glabrous; sepals broadly to narrowly triangular, 6–7 mm, margins glandular-serrate; stamens 10, anthers rose-purple; styles 3 or 4. Pomes red, suborbicular, 9–12 mm diam.; flesh mellow when ripe; sepals reflexed; pyrenes 3 or 4, dorsally grooved.


Phenology: Flowering Apr–May; fruiting Sep–Oct.
Habitat: Brush, thickets, roadsides
Elevation: 10–400 m

Distribution

V9 968-distribution-map.jpg

Ont., Del., N.Y., Ohio, Pa., Wis.

Discussion

Crataegus stolonifera has been recorded sporadically from Wisconsin to southern Ontario and New York, to Pennsylvania and Delaware. The species is similar to C. populnea, differing primarily in the deltate, deeply incised extension-shoot leaves and more mellow fruit.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus stolonifera"
glabrescent +  and appressed-pubescent +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
rose-purple +
James B. Phipps +
Sargent +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +  and broadly cuneate +
7 cm70 mm <br />0.07 m <br /> (8 cm80 mm <br />0.08 m <br />) +
4cm +  and 5cm +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ont. +, Del. +, N.Y. +, Ohio +, Pa. +  and Wis. +
not +  and aggregated +
10–400 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 +, reddish-brown +  and golden green +
old +  and new +
Brush, thickets, roadsides +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
glandular-serrate +  and serrate +
short-stipitate-glandular +
subentire or +  and shallowly moderately glandular-serrate +
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 +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering Apr–May +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
suborbicular +
not arillate +
persistent +
free +  and distinct +
triangular +
nonaccrescent +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus iracunda var. stolonifera +
Crataegus stolonifera +
Crataegus (sect. Coccineae) ser. Populneae +
species +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
darker +, reddish-brown +, shiny +  and old +
straight +
slender +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
craspedodromous +
inconspicuous +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
5 +  and 4 +