Prunus subcordata
Prunus texana
Klamath plum, Oregon plum, Pacific plum, Sierra or Klamath or Pacific plume, Sierra plum, western plum
peachbush, Texas wild peach
with axillary end buds, glabrous or hairy.
with axillary end buds, tomentose.
deciduous;
petiole 4–18 mm, glabrous or hairy, usually glandular distally, glands 1–3, discoid;
blade elliptic, oblong-ovate, or suborbiculate, 2–5(–6.5) × 1.3–3.5(–4.5) cm, base rounded or subcordate, margins singly to doubly serrulate, teeth blunt, glandular, apex usually obtuse to rounded, rarely acute, abaxial surface glabrous or hairy, adaxial glabrous or appressed-hairy.
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.
2–5-flowered, umbellate fascicles.
solitary flowers or 2-flowered fascicles.
5–15 mm, glabrous or hairy.
1–5 mm, tomentose.
blooming at leaf emergence;
hypanthium campanulate, 2–3.5 mm, glabrous or hairy externally;
sepals broadly spreading to reflexed, obovate, 2.2–4(–5) mm, margins glandular-toothed, sometimes obscurely so, sometimes ciliate, surfaces glabrous or hairy;
petals white, oblong-obovate, 5–10 mm;
ovaries usually glabrous, rarely hairy.
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.
usually red to reddish purple, sometimes yellow, globose to ellipsoid, 15–25 mm, usually glabrous, rarely puberulent;
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.
Prunus subcordata
Prunus texana
Prunus subcordata shows variation in color, size, indument, and palatability of fruits, which has been the basis for recognition of taxonomic segregates. Variety kelloggii was described as a larger plant with less hairy foliage than in typical P. subcordata, and its fruits are yellow, larger, sweeter, and more pulpy. Variety rubicunda is a smaller shrub with bright red, bitter fruits. Most noteworthy is var. oregana with densely hairy ovaries and puberulent fruits, recorded only from the sparsely inhabited border region between northeastern California and adjacent Oregon. Specimens in herbaria are few and recent collections are lacking. The assignment of P. texana with hairy fruits to the plums (J. Shaw and R. L. Small 2005) makes this variant all the more interesting. Field study and collection followed by morphologic, genetic, and molecular study are needed to clarify its systematic position and significance.
(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.)
CA
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
