Crataegus padifolia

Sargent

Trees & Shrubs 2: 75, plate 135. 1908.

Common names: Bird-cherry hawthorn
Conservation concernEndemic
Synonyms: Crataegus intricata var. padifolia (Sargent) Lance
Treatment appears in FNA Volume 9. Treatment on page 592. Mentioned on page 586, 587, 594.

Shrubs or trees, 40–60 dm. Stems: twigs: new growth reddish green, glabrous, 1-year old deep redbrown, 2-years old dark gray-black, older grayish; thorns on twigs sometimes absent, straight or slightly recurved, 2-years old blackish, slender, 2–4 cm. Leaves: petiole 1 mm wide, length 33–40% blade, glabrous, sparsely glandular; blade deep glossy green, ± elliptic (var. padifolia) or ovate (var. incarnata), 3–5 cm, base cuneate or broadly cuneate to rounded or subtruncate, lobes 0, or 3 or 4 per side (enlarged toothlike apiculi in var. padifolia or larger in var. incarnata), sinuses shallow, lobe apex very short and acute to ± obtuse, margins serrate at least young teeth gland-tipped, teeth gland-tipped, veins 4–7 per side, apex subacute to obtuse, surfaces glabrous, adaxial larger veins sparsely short-hairy. Inflorescences 3–6-flowered; branches glabrous; bracteole margins stipitate-glandular. Flowers 15–18 mm diam.; hypanthium glabrous; sepals 4 mm, margins finely glandular-serrate distally, abaxially glabrous; stamens 10, anthers cream, flushed pink; styles 2 or 3. Pomes dull orangebrown to ± shiny, red-orange to red, ± oblong, 12–14 mm diam., glabrous; sepals sessile, patent-reflexed; pyrenes 2 or 3.2n = 51.

Discussion

Varieties 2 (2 in the flora).

Crataegus padifolia is rare, confirmed only for the Ozark region of Arkansas and southern Missouri. Occasional specimens from southern Appalachia may prove to belong here.

Crataegus padifolia is one of the less typical taxa usually placed in ser. Intricatae as it lacks the characteristic elevated fruiting calyx. The two varieties, at least in their more extreme forms, could pass for different species but too little material is available on which to justify a change of status. Crataegus fortunata Sargent from Pennsylvania has yellow fruit but is otherwise similar and may belong here.

Selected References

None.

Key

1 Leaf blades: bases cuneate, length/width = 1.4–2, lobes 0 or usually at most short, acute apiculi, veins 5–7 per side. Crataegus padifolia var. padifolia
1 Leaf blades: bases broadly cuneate to rounded or subtruncate, length/width = 1–1.4, lobes 3 or 4 per side, lobe apices ± obtuse, sinuses shallow, veins 4–6 per side. Crataegus padifolia var. incarnata
... more about "Crataegus padifolia"
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
flushed pink +  and cream +
James B. Phipps +
Sargent +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
broadly cuneate +  and rounded or subtruncate +
Intricatae +
6 cm60 mm <br />0.06 m <br /> (9 cm90 mm <br />0.09 m <br />) +
ovate +  and elliptic +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
stipitate-glandular +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Bird-cherry hawthorn +
Ark. +, Mo. +  and Okla. +
not +  and aggregated +
less hard +  and mealy +
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 />) +
grayish +, dark gray-black +, redbrown +  and reddish green +
older +, old +  and new +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
craspedodromous +
glandular-serrate +  and glandular-pectinate +
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 +
stipitate +  and sessile +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
red-orange +  and red +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
shiny +  and dull +
Trees & Shrubs +
not arillate +
persistent +
free +  and distinct +
patent-reflexed +
triangular +
nonaccrescent +
4 cm40 mm <br />0.04 m <br /> (?) +
1-50-flowered +  and few-leaved +
Conservation concern +  and Endemic +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
Crataegus intricata var. padifolia +
Crataegus padifolia +
Crataegus (sect. Coccineae) ser. Intricatae +
species +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
straight +
slender +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
gland-tipped +
inconspicuous +
buff to gray-brown +  and corrugated +
less erect +  and oblique +
1 +  and several +
flexuous +  and straight +
determinate +
4 +  and 7 +
tree +  and shrub +