Vauquelinia californica
Arizona rosewood
petiole (1.5–)4–16(–26) mm;
blade usually bicolor, sometimes green or yellow-green, oblong-elliptic or oblong-lanceolate to linear-lanceolate or linear, (2.2–)3–11(–15) × (0.6–)0.7–2(–3.2) cm, base obliquely cuneate to rounded, margins serrulate or crenulate, teeth 10–35(–50) per 5 cm, 0.1–0.5(–1.5) mm, apex acute, mostly mucronate, surfaces closely villous-tomentulose, abaxially more densely so, or glabrate or tardily glabrescent (some remaining crinkled hairs).
hypanthium 1.5–2.5(–3) × 2–3.7(–4.5) mm, tomentose to sparsely tomentulose or glabrate;
sepals 1.1–2.2 × 1.4–2.3 mm, margins eglandular;
petals oblong-ovate, 3.4–5.4 × 2.4–3.5 mm;
filaments 2.5–6 mm.
4.5–6.5 × 3.5–4.5 mm.
3.5–5 × 0.9–1.4 mm.
1.5–5(–12) × 1.7–8(–13) cm, tomentulose, sometimes sparsely hairy or glabrate.
Vauquelinia californica
Subspecies 4 (3 in the flora).
Subspecies retherfordii (I. M. Johnston) W. J. Hess & Henrickson is known from Coahuila and Durango in northern Mexico.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaves green or yellow-green, glabrate or puberulent along midveins. | subsp. pauciflora |
1. Leaves bicolor, abaxially white-puberulent or villous-tomentulose (or tardily glabrescent in plants of c Arizona), adaxially green | → 2 |
2. Leaf blades lanceolate to oblong-lanceolate or narrowly elliptic, (0.7–)1–2(–3.2) cm wide, usually abaxially sparsely white-puberulent, sometimes glabrate or glabrous. | subsp. californica |
2. Leaf blades linear to linear-lanceolate, (0.6–)0.7–1.2(–1.4) cm wide, abaxially villous-tomentulose, soon or tardily glabrescent except for hairy midveins. | subsp. sonorensis |
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