Prunus angustifolia
Prunus ilicifolia
Cherokee plum, Chickasaw plum, Chickasaw plume, Florida sand plum, sandhill plum
Catalina cherry, evergreen cherry, holly leaf cherry, islay
with axillary end buds, glabrous.
with terminal end buds, glabrous.
deciduous;
petiole 2–14 mm, usually sparsely hairy on adaxial surface, rarely glabrous or hairy on both surfaces, usually eglandular, sometimes glandular distally, glands 1–2;
blade lanceolate to narrowly elliptic, usually folded along midribs, often ± falcate, 1.5–6 × 0.8–2 cm, base cuneate to obtuse, margins crenulate-serrulate, teeth blunt, glandular, glands reddish orange, conic, apex acute, abaxial surface glabrate with hairs along midribs and major veins, adaxial glabrous.
persistent;
petiole 3–25 mm, glabrous, eglandular;
blade oblong-ovate to ovate-lanceolate or ovate to suborbiculate, 1.6–12 × 1.2–5(–7) cm, base usually broadly rounded to subcordate, sometimes obtuse, margins spinose-dentate to spinose-serrulate or entire, sometimes undulate, teeth sharp, callus-tipped, sometimes glandular at leaf base, apex acute to acuminate, surfaces glabrous, abaxial eglandular, if glands present, restricted to margins.
2–4-flowered, umbellate fascicles.
15–40-flowered, racemes;
central axes 30–80 mm, leafless at bases.
3–10 mm, glabrous.
1–5 mm, glabrous.
blooming before, sometimes at, leaf emergence;
hypanthium campanulate, 1.5–3 mm, usually glabrous, rarely hairy, externally;
sepals erect to spreading, ovate, 1–2 mm, margins entire, sparsely ciliate, abaxial surface glabrous, adaxial hairy;
petals white, suborbiculate to obovate, 3–6 mm;
ovaries glabrous.
blooming before leaf emergence;
hypanthium cupulate, 2–3 mm, glabrous externally;
sepals erect to spreading, triangular, 0.7–1.2 mm, margins entire, surfaces usually glabrous, rarely with scattered hairs;
petals white to yellowish, elliptic, obovate, or suborbiculate, 1–3 mm;
ovaries glabrous.
red to yellow, lightly glaucous, globose to ellipsoid, 15–20 mm, glabrous;
mesocarps fleshy;
stones ovoid, ± flattened.
dark red to purple or blue-black, obovoid or ellipsoid to globose, 12–25 mm, glabrous;
mesocarps leathery;
stones subglobose to ellipsoid, ± flattened.
= 16.
Prunus angustifolia
Prunus ilicifolia
A naturalized population of Prunus angustifolia in Santa Barbara County, California, has been extirpated.
Prunus angustifolia is one of the more distinctive plum species in North America. The leaves are relatively small, usually folded along their midribs, and have relatively large, reddish orange, conic glands along the margins. When it hybridizes with other plums, the hybrids often have distinctive characteristics and have been named as species more often than hybrids not involving P. angustifolia: P. ×orthosepala Koehne (angustifolia × americana), P. ×slavinii E. J. Palmer ex Rehder (angustifolia × gracilis), P. ×utahensis Koehne (angustifolia × pumila var. besseyi); see also discussion under 42. P. rivularis.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaf blades ovate to suborbiculate, margins spinose-dentate to spinose-serrulate; petioles 3–10 mm. | var. ilicifolia |
1. Leaf blades oblong-ovate to ovate-lanceolate, margins usually entire, sometimes remotely spinose-serrulate; petioles 8–25 mm. | var. occidentalis |
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