Rubus neomexicanus
Rubus vestitus
New Mexico raspberry
European blackberry
erect, sparsely to moderately short-hairy, sparsely stipitate-glandular, not pruinose.
biennial, arching, usually densely, sometimes moderately, hairy, usually eglandular, sometimes sessile- to short-stipitate-glandular, not pruinose;
prickles moderate to dense, recurved to erect, slender, 3–10 mm, broad-based.
deciduous, simple;
stipules lanceolate to narrowly ovate, (4–)6–8(–10) mm;
blade cordate to broadly ovate, (2.5–)3.5–5.5(–6.5) × (2.5–)3.5–5.5(–8) cm, base shallowly to deeply cordate, palmately, shallowly to deeply 3–5(–7)-lobed, margins coarsely doubly dentate, apex acute to broadly obtuse, abaxial surfaces moderately hairy, sparsely stipitate-glandular.
deciduous or ± persistent, palmately compound;
stipules filiform to linear, 5–15 mm;
leaflets 3–5, terminal usually suborbiculate to orbiculate, sometimes broadly elliptic, 4–9 × 4–8 cm, base rounded to shallowly cordate, unlobed, margins moderately to coarsely serrate, apex acute to cuspidate, abaxial surfaces with hooked prickles on midvein, densely white-gray to gray-green tomentose, eglandular or obscurely short-stipitate- to sessile-glandular along midveins.
1(–2)-flowered.
terminal, 7–35-flowered, cymiform or thyrsiform.
sparsely to moderately hairy, sparsely to densely short- to long-stipitate-glandular.
prickles moderate to dense, recurved to erect, densely hairy, moderately to densely stipitate-glandular.
bisexual;
petals white, broadly obovate to suborbiculate, (15–)20–30(–35) mm;
filaments filiform;
ovaries glabrous, styles clavate, villous.
bisexual;
petals pink to magenta, elliptic to suborbiculate, 6–12(–15) mm;
filaments filiform;
ovaries apically hairy.
red, hemispheric, to 1 cm;
drupelets 20, coherent, separating from torus.
black, globose, 1–1.5 cm;
drupelets 15–40, coherent, separating with torus attached.
= 14.
= 28.
Rubus neomexicanus
Rubus vestitus
Rubus neomexicanus is recognized by its erect, unarmed stems, relatively small, simple leaves with acute to obtuse lobes, the terminal prominent, deeply cordate base, moderately hairy abaxially, large flowers, white petals, and densely long-hairy, clavate styles. The species is similar to R. bartonianus and R. deliciosus, and treating it as a variety of the latter species would be reasonable, as W. O. Focke (1910) considered the two conspecific.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Rubus vestitus can be distinguished, especially from the closely related R. bifrons and R. ulmifolius, by its long-stipitate-glandular hairs, particularly in the inflorescence, and terminal primocane leaflets that are typically suborbiculate and abaxially densely tomentose. Rubus allegheniensis can possess similar glandular hairs; it does not have pink petals, thyrsiform inflorescences, and rounded and abaxially densely tomentose, often whitened terminal leaflets.
Rubus vestitus has not yet been found in Washington, but it is likely there. Because of the overall similarity of R. vestitus to R. bifrons, it is possible that this potentially weedy species is widespread, but rare and possibly overlooked, occurring as far south as California. In Oregon, R. vestitus prefers shady habitats (B. Wilson, pers. comm.).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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