Crataegus texana

Buckley

Proc. Acad. Nat. Sci. Philadelphia 13: 454. 1862.

Common names: Texas red haw
Endemic
Synonyms: Crataegus mollis var. texana (Buckley) Lance
Treatment appears in FNA Volume 9. Treatment on page 554. Mentioned on page 552, 553, 555, 556.

Shrubs or trees, 100 dm. Stems: older trunk bark nearly black, grooved, younger gray, fibrous, checked into longitudinal plates; twigs: new growth lanate, 1-year old pale grayish tan, older gray; thorns on twigs absent or frequent, straight, 2-years old ± bright chestnut-brown or shiny black, fine, 4–5 cm. Leaves: petiole length 37–43% blade, tomentose young, glabrescent, eglandular; blade broadly elliptic, narrowly rhombic, rhombic, rhombic-ovate, or broadly ovate, 4–7 cm, thin, base broadly cuneate to rounded, lobes 1–4 per side, sinuses shallow to deep, lobe apex obtuse to subacute, margins strongly serrate except proximally, teeth 2–3 mm, veins 5 per side, apex acute to subacute or obtuse, abaxial surface sparsely to densely white-tomentose young, less dense mature, veins densely hairy, adaxial densely scabrous young, glabrescent. Inflorescences 7–12-flowered; branches tomentose, sometimes glabrescent; bracteoles caducous, ± linear, (larger) herbaceous to (smaller) membranous, margins glandular. Flowers 14–22 mm diam.; hypanthium tomentose; sepals narrowly triangular, 4–6 mm, margins glandular-serrate to glandular-laciniate, abaxially densely pubescent; stamens 20, anthers rose, rose-purple, red, or purple; styles 4 or 5. Pomes red, sometimes red-orange, suborbicular, 9–14 (–25) mm diam., with remnant tomentum; sepals often eroded or broken, spreading; pyrenes 4 or 5.

Discussion

Varieties 2 (2 in the flora).

Crataegus texana is distributed through much of the eastern half of Texas and into Oklahoma, Arkansas, and southwestern Missouri.

Crataegus texana is provisionally treated as a complex of pink- to purple-anthered, 20-stamened, red-fruited forms.

Selected References

None.

Key

1 Leaf blades: lobes 2–4 per side, sinuses deep, lobe apices ± angled. Crataegus texana var. texana
1 Leaf blades: lobes 1 or 2(or 3) per side, sinuses shallow, lobe apices ± obtuse to subacute. Crataegus texana var. dasyphylla

"pubescent" is not a number.

... more about "Crataegus texana"
mature +  and young +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
purple +, red +, rose-purple +  and rose +
James B. Phipps +
Buckley +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
broadly cuneate +  and rounded +
Molles +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
ovate +, rhombic-ovate +, rhombic +  and elliptic +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
glabrescent +  and tomentose +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Texas red haw +
Ark. +, Mo. +, Okla. +  and Tex. +
not +  and aggregated +
1.4 cm14 mm <br />0.014 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 />) +
gray +, tan +  and pale grayish +
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 +
sessile +  and craspedodromous +
persistent +
glandular-serrate +  and glandular-laciniate +
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 (?) +
Pink (?) +  and White (?) +
free +  and distinct +
post-mature +
tomentose +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
red-orange +  and red +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
suborbicular +
Proc. Acad. Nat. Sci. Philadelphia +
not arillate +
persistent +
free +  and distinct +
triangular +
accrescent +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1-50-flowered +  and few-leaved +
shallow +  and deep +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus mollis var. texana +
Crataegus texana +
Crataegus (sect. Coccineae) ser. Molles +
species +
7 cm70 mm <br />0.07 m <br /> (9 cm90 mm <br />0.09 m <br />) +
black +, shiny +, bright chestnut-brown +  and old +
straight +
slender +  and stout +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
younger +  and older +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
tree +  and shrub +