Prunus angustifolia
Prunus texana
Cherokee plum, Chickasaw plum, Chickasaw plume, Florida sand plum, sandhill plum
peachbush, Texas wild peach
with axillary end buds, glabrous.
with axillary end buds, tomentose.
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.
deciduous;
petiole 1–4 mm, tomentose, eglandular;
blade elliptic to oblong-elliptic, 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.
2–4-flowered, umbellate fascicles.
solitary flowers or 2-flowered fascicles.
3–10 mm, glabrous.
1–5 mm, tomentose.
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 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.
red to yellow, lightly glaucous, globose to ellipsoid, 15–20 mm, glabrous;
mesocarps fleshy;
stones ovoid, ± flattened.
usually yellow to greenish yellow, sometimes tinged with red, ovoid, compressed, 8–15 mm, velutinous;
hypanthium tardily deciduous;
mesocarps fleshy;
stones ovoid, ± flattened.
= 16.
Prunus angustifolia
Prunus texana
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.)
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.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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