Prunus texana

D. Dietrich

Syn. Pl. 3: 45. 1842.

Common names: Peachbush Texas wild peach
Endemic
Basionym: Amygdalus glandulosa Hooker Icon. Pl. 3: plate 288. 1840,
Treatment appears in FNA Volume 9. Treatment on page 377. Mentioned on page 354, 356, 359, 378.
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Shrubs, sometimes suckering, much branched, 5–15 dm, sometimes weakly thorny. Twigs with axillary end buds, tomentose. Leaves deciduous; petiole 1–4 mm, tomentose, eglandular; blade elliptic to oblongelliptic, 1.1–4 × 0.4–1.1 cm, base cuneate to obtuse, margins dentate, teeth blunt, glandular, glands discoid, apex acute, obtuse, or rounded, abaxial surface hairy to canescent, adaxial hairy. Inflorescences solitary flowers or 2-flowered fascicles. Pedicels 1–5 mm, tomentose. Flowers blooming before or at leaf emergence; hypanthium campanulate, 2 mm, tomentose externally; sepals reflexed, triangular, 1–1.7 mm, margins glandular-toothed, surfaces tomentose; petals white, elliptic, 3–5 mm; ovaries hairy. Drupes usually yellow to greenish yellow, sometimes tinged with red, ovoid, compressed, 8–15 mm, velutinous; hypanthium tardily deciduous; mesocarps fleshy; stones ovoid, ± flattened.


Phenology: Flowering Feb–Mar; fruiting Apr–Jun.
Habitat: Deep sand, plains and sand hills, grasslands, oak woods
Elevation: 0–200 m

Discussion

Prunus texana is endemic to south-central Texas from the Edwards Plateau southeast to the coastal plain.

Despite the peachlike fruits of Prunus texana, DNA evidence supports its placement among the native American plums (J. Shaw and R. L. Small 2005). The leaf margins look like those of no other North American species of Prunus. The teeth project perpendicular to the margins and are capped with disc-shaped glands.

Selected References

None.

Lower Taxa

None.
... more about "Prunus texana"
hairy +  and canescent +
rounded;obtuse;rounded;obtuse;acute +
Joseph R. Rohrer +
D. Dietrich +
dark gray +, gray-brown +, reddish-brown +  and reddish +
compound +  and simple +
opposite +  and alternate +
cuneate +  and obtuse +
Amygdalus glandulosa +
1.1 cm11 mm <br />0.011 m <br /> (4 cm40 mm <br />0.04 m <br />) +
elliptic +  and oblongelliptic +
0.5 cm5 mm <br />0.005 m <br /> (18 cm180 mm <br />0.18 m <br />) +
membranous +  and leathery +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 1.1 cm11 mm <br />0.011 m <br /> (?) +
free +  and distinct +
Peachbush +  and Texas wild peach +
solitary +, fascicles +, 2-flowered +  and umbellate +
not +  and aggregated +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
tinged with red +, usually yellow +  and greenish yellow +
compressed +  and ovoid +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0–200 m +
flattened +
hairy +  and glabrous +
0.4 cm4 mm <br />0.004 m <br /> (4 cm40 mm <br />0.04 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
not +  and aggregated +
not +  and aggregated +
Deep sand, plains and sand hills, grasslands, oak woods +
campanulate +
2 cm20 mm <br />0.02 m <br /> (?) +
1-64(-90)[-100]-flowered +
crassinucellate +
deciduous +
glandular-toothed +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and apical +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
rhombic;oblanceolate;rhombic;oblanceolate;ovate;oblong;usually suborbiculate;elliptic or obovate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering Feb–Mar +  and fruiting Apr–Jun. +
adnate +, free +, connate +  and distinct +
not arillate +
free +  and distinct +
triangular +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
free +  and distinct +
branched +  and simple +
1 +  and 20 +
linear;lanceolate +
flattened +  and ovoid +
deciduous +
distinct +
basal +, lateral +, subterminal +  and terminal +
not elongate +
Amygdalus +, Armeniaca +, Cerasus +, Lauro-cerasus +, Padus +  and Persica +
Prunus texana +
species +
inconspicuous +
thorny +  and branched +
shrub +  and suckering +
hairy +  and glabrous +