Crataegus rubella

Beadle

Bot. Gaz. 30: 344. 1900.

Endemic
Synonyms: Crataegus apposita Sargent C. intricata var. rubella (Beadle) Kruschke C. intricata var. straminea (Beadle) E. J. Palmer C. straminea
Treatment appears in FNA Volume 9. Treatment on page 589. Mentioned on page 587, 588, 590.

Shrubs, 10–40 dm. Stems: twigs: new growth reddish green, glabrous, 1-year old dull reddish-brown, 2-years old dark gray, older ashy gray; thorns on twigs absent or few to several, straight, 2-years old nearly black, fine, 3 cm. Leaves: petiole 1 mm wide, length 60% blade, glabrous, glandular; blade ± elliptic or rhombic-elliptic, sometimes ± obtrullate, 2.5–5 cm, thin, base cuneate, lobes 0, or 1 or 2 per side in distal 1/2, sinuses very shallow, lobe apex acute, margins serrate, teeth gland-tipped, especially near base, veins 4 per side, apex acuminate, surfaces glabrous, abaxial veins sparsely hairy young. Inflorescences 3–8-flowered; branches glabrous; bracteole margins short-stipitate-glandular. Flowers 15–18 mm diam.; hypanthium glabrous; sepals 5 mm, margins glandular-serrate; stamens 10, anthers pale-purple; styles 2–4. Pomes red to orange-red, obovoid or oblong, 10–12 mm diam., glabrous; sepals on collar, ± reflexed; pyrenes 2–4.


Phenology: Flowering late Apr–early May; fruiting Sep–Oct.
Habitat: Woods and thickets
Elevation: 0–300 m

Distribution

V9 1004-distribution-map.jpg

Ala., Del., Ga., Ky., La., Md., Mo., N.C., S.C., Tenn., Va.

Discussion

Crataegus rubella is wide-ranging and common in the southeastern United States. The species is one of the more distinct taxa of ser. Intricatae, with its somewhat narrow leaves with distinctively shaped lobes. Crataegus straminea, somewhat arbitrarily synonymized here, represents uncommon intermediates with C. communis and shares the broader leaf shape with the latter but has two to three lobes per side of the form of C. rubella.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus rubella"
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
pale-purple +
James B. Phipps +
Beadle +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +
Intricatae +
rhombic-elliptic +  and elliptic +
6 cm60 mm <br />0.06 m <br /> (9 cm90 mm <br />0.09 m <br />) +
obtrullate +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
short-stipitate-glandular +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ala. +, Del. +, Ga. +, Ky. +, La. +, Md. +, Mo. +, N.C. +, S.C. +, Tenn. +  and Va. +
not +  and aggregated +
0–300 m +
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 />) +
ashy gray +, dark gray +, reddish-brown +  and reddish green +
older +, old +  and new +
Woods and thickets +
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 serrate +
stipitate-glandular +
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 +
Flowering late Apr–early May +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
red +  and orange-red +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
oblong +  and obovoid +
not arillate +
persistent +
free +  and distinct +
triangular +
nonaccrescent +
5 cm50 mm <br />0.05 m <br /> (?) +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
Crataegus apposita +, C. intricata var. rubella +, C. intricata var. straminea +  and C. straminea +
Crataegus rubella +
Crataegus (sect. Coccineae) ser. Intricatae +
species +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
straight +
slender +
3 cm30 mm <br />0.03 m <br /> (?) +
gland-tipped +
inconspicuous +
buff to gray-brown +  and corrugated +
less erect +  and oblique +
1 +  and several +
flexuous +  and straight +
determinate +
few +  and several +