Crataegus neobushii

Sargent

Trees & Shrubs 2: 9, plate 105. 1907.

Common names: Bush’s hawthorn
Endemic
Synonyms: Crataegus intricata var. neobushii (Sargent) Kruschke C. leioclada Sargent
Treatment appears in FNA Volume 9. Treatment on page 589. Mentioned on page 587.

Shrubs, 20–40 dm. Stems: twigs: new growth reddish young, glabrous, 1-year old brownish purple, older dark gray; thorns on twigs straight to reflexed, 2-years old dark, sometimes blackish, ± slender, 3–5 cm. Leaves: petiole 1 mm wide, length 33–50% blade, glabrous, sometimes stipitate-glandular; blade trullate-ovate, 4–6 cm, length/width = 1.2–1.6, thin, base ± cuneate, lobes 4 per side, sinuses shallow, lobe apex acute, margins serrate except proximally, teeth 1 mm, gland-tipped, veins 4–6 per side, apex acute, abaxial surface glabrous, adaxial sparsely pubescent or glabrous young, glabrescent, veins persistently pilose. Inflorescences 3–7-flowered; branches glabrous; bracteoles initially abundant, often reddish, margins short-stipitate-glandular. Flowers 18–22 mm diam.; hypanthium glabrous; sepal length not recorded, margins glandular-pectinate, at least distally; stamens 10, anthers rose; styles 3–5. Pomes yellowish to orangish, suborbicular, 10 mm diam., glabrous, sometimes gland-dotted; sepals on collar, patent; pyrenes 3–5.


Phenology: Flowering Apr; fruiting Sep–Oct.
Habitat: Open woodland understory
Elevation: 20–300 m

Distribution

V9 1002-distribution-map.jpg

Ala., Ark., Ga., Mo., Tenn., Va.

Discussion

Crataegus neobushii is sparsely distributed from Missouri and Arkansas to Virginia and Georgia.

In Crataegus neobushii, the length-width ratio of the leaves is variable; the more or less straight edge from near the widest part of the leaf along the lobe apices to the tip of the leaf, forming a trullate to deltate overall shape, is distinctive. The difference between C. neobushii and C. buckleyi may seem slight but the latter has a different leaf shape as indicated in the key. Specimens of C. neobushii with leaves shallowly incised may be hard to distinguish from C. rubella. Crataegus neobushii is similar to the inadequately studied C. cuprea Sargent (a prior name), and this requires resolution.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus neobushii"
glabrescent +, glabrous +  and pubescent +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
James B. Phipps +
Sargent +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +
Intricatae +
6 cm60 mm <br />0.06 m <br /> (9 cm90 mm <br />0.09 m <br />) +
trullate-ovate +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Bush’s hawthorn +
Ala. +, Ark. +, Ga. +, Mo. +, Tenn. +  and Va. +
not +  and aggregated +
20–300 m +
less hard +  and mealy +
1.8 cm18 mm <br />0.018 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 />) +
dark gray +, brownish purple +  and reddish +
older +, old +, young +  and new +
Open woodland understory +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
glandular-pectinate +
short-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 +
stipitate-glandular +
Flowering Apr +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
gland-dotted +, yellowish +  and orangish +
10 cm100 mm <br />0.1 m <br /> (?) +
suborbicular +
Trees & Shrubs +
not arillate +
persistent +
free +  and distinct +
triangular +
nonaccrescent +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
pubescent +  and glabrous +
Crataegus intricata var. neobushii +  and C. leioclada +
Crataegus neobushii +
Crataegus (sect. Coccineae) ser. Intricatae +
species +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
blackish +  and dark +
straight +
slender +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
buff to gray-brown +  and corrugated +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
4 +  and 6 +