Prunus geniculata

R. M. Harper

Torreya 11: 67. 1911.

Common names: Scrub plum
Conservation concernEndemic
Treatment appears in FNA Volume 9. Treatment on page 378. Mentioned on page 357, 359.
Revision as of 13:21, 30 July 2020 by imported>Volume Importer
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Shrubs, sometimes suckering, much branched, 5–10 (–20) dm, thorny. Twigs with axillary end buds, hairy. Leaves deciduous; petiole 3–6 mm, hairy on adaxial surface, sometimes glandular distally, glands 1–2, discoid; blade elliptic, 0.8–2.5 × 0.4–1.3 cm, base obtuse to rounded, margins crenulate-serrulate in distal 1/2, nearly entire on smaller leaves, teeth blunt, glandular, apex obtuse to rounded, mucronate, surfaces glabrous. Inflorescences solitary flowers. Pedicels 0–3 mm, glabrous. Flowers usually bisexual with some staminate flowers on same plant, blooming before leaf emergence; hypanthium campanulate, 2–3 mm, glabrous externally; sepals erect to spreading, ovate, 1–1.5 mm, margins entire, ciliate, abaxial surface glabrous, adaxial hairy; petals white, elliptic, 2 mm; ovaries glabrous. Drupes reddish, ovoid, 12–25 mm, glabrous; mesocarps fleshy; stones ovoid, ± flattened.


Phenology: Flowering Jan–Feb; fruiting Mar–May.
Habitat: Longleaf pine-turkey oak sandhills, pine-evergreen oak scrub
Elevation: 10–50 m

Discussion

Of conservation concern.

Prunus geniculata is known only from the Lake Wales Ridge in central Florida. Much of its original habitat has been lost to residential, recreational, and agricultural development; it received federal listing as an endangered species in 1987.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Prunus geniculata"
mucronate;obtuse;rounded +
Joseph R. Rohrer +
R. M. Harper +
dark gray +, gray-brown +, reddish-brown +  and reddish +
compound +  and simple +
opposite +  and alternate +
obtuse +  and rounded +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
rhombic +, fan--shaped +, spatulate +, oblanceolate +, obovate +, linear +, lanceolate +, ovate +, suborbiculate +, oblong +  and elliptic +
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 1.3 cm13 mm <br />0.013 m <br /> (?) +
free +  and distinct +
Scrub plum +
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 />) +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
10–50 m +
flattened +
hairy +  and glabrous +
0.4 cm4 mm <br />0.004 m <br /> (4 cm40 mm <br />0.04 m <br />) +
not +  and aggregated +
not +  and aggregated +
not +  and aggregated +
Longleaf pine-turkey oak sandhills, pine-evergreen oak scrub +
persistent +  and deciduous +
campanulate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1-64(-90)[-100]-flowered +
crassinucellate +
deciduous +
entire +  and crenulate-serrulate +
undulate +, toothed +, entire +, flat +  and lobed +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and apical +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
rhombic;oblanceolate;rhombic;oblanceolate;ovate;oblong;usually suborbiculate;elliptic or obovate +
2 cm20 mm <br />0.02 m <br /> (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering Jan–Feb +  and fruiting Mar–May. +
adnate +, free +, connate +  and distinct +
not arillate +
free +  and distinct +
erect +  and spreading +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Conservation concern +  and Endemic +
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 geniculata +
species +
inconspicuous +
thorny +  and branched +
shrub +  and suckering +
hairy +  and glabrous +