Crataegus invicta

Beadle

Biltmore Bot. Stud. 1: 37. 1901.

Conservation concernEndemic
Treatment appears in FNA Volume 9. Treatment on page 626. Mentioned on page 619.

Shrubs, 10–25 dm, branches not weeping except in larger specimens. Stems: twigs: new growth densely canescent (rapidly becoming dark underneath indumentum), 1-year old purple-brown, stiff; thorns on twigs numerous, straight, 1-year old dark purple-brown, becoming gray, fine, 3–5 cm. Leaves deciduous or semipersistent, petiole length 5–15% blade, pubescent, glandular; blade obovate-cuneate, 1.5–2 cm, stiff, subcoriaceous, base cuneate, lobes apical, sinuses shallow, obscurely so in narrower or smaller leaves, margins obscurely crenate or crenate-serrate, teeth glandular, veins 1–3 per side (exiting at or beyond widest part), apex subacute to obtuse, adaxially very glossy, surfaces (late spring to early summer) moderately crisped-hairy. Inflorescences 1-flowered or 2 (or 3) -flowered; branches very densely white-pubescent; bracteoles few, semipersistent, linear, margins glandular. Flowers 12–15 mm diam.; hypanthium ± densely pubescent; sepals narrowly triangular, margins glandular-serrate, abaxially sparsely pubescent; anther color not recorded; styles 3–5. Pomes color not recorded, ± pyriform, 6–8 mm diam., ripe fruit not recorded.


Phenology: Flowering Mar–early Apr; fruiting Jul–Aug.
Habitat: Dry sandy soil
Elevation: 0–100 m

Discussion

Of conservation concern.

Crataegus invicta is restricted to southeastern Georgia and adjacent South Carolina, where it is scarce.

Crataegus invicta is distinctive and is capable of flowering at under 1.5 m, as in the type collection. Somewhat similar to the C. cirrata form of C. egens, it differs in its relatively shorter petioles, more thorny habit, and blunter and shinier, apparently more coriaceous leaves.

Selected References

None.

Lower Taxa

None.
... more about "Crataegus invicta"
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
white +  and cream +
James B. Phipps +
Beadle +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
obovate-cuneate +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
semipersistent +
white-pubescent +
adnate +  and distinct +
crowded +, scattered +  and alternate +
spreading +  and pendulous +
Ga. +  and S.C. +
not +  and aggregated +
0–100 m +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 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 />) +
purple-brown +
old +  and new +
Dry sandy soil +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2-flowered +  and 1-flowered +
crassinucellate +
semipersistent +  and deciduous +
eglandular +  and craspedodromous +
glandular-serrate +  and crenate-serrate +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
firm +  and coriaceous +
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 />) +
circular +  and elliptic +
0 (?) +  and 4 (?) +
free +  and distinct +
post-mature +
pubescent +
Flowering Mar–early Apr +  and fruiting Jul–Aug. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
hairy +  and glabrous +
ellipsoid +, pyriform +  and suborbicular +
Biltmore Bot. Stud. +
not arillate +
circumscissile +
persistent +
free +  and distinct +
triangular +
nonaccrescent +
1-50-flowered +  and few-leaved +
Conservation concern +  and Endemic +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
crisped-hairy +
Crataegus invicta +
Crataegus (sect. Coccineae) ser. Lacrimatae +
species +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
gray +  and dark purple-brown +
straight +
slender +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
less erect +  and oblique +
1 +  and several +
determinate +
1 +  and 3 +