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slimleaf rosewood

Photo is of parent taxon

slimleaf rosewood

Habit Shrubs [trees], 15–70(–100) dm, multistemmed [single-stemmed].
Leaves

petiole (6–)9–28(–40) mm;

blade green or yellow-green, linear to linear-oblong, (3.5–)6–13(–18.5) × (0.3–)0.5–0.9(–1.3) cm, base obliquely cuneate to truncate-subcordate, margins usually serrate, sometimes partly doubly serrate, rarely entire, teeth (3–)5–10(–14) per 5 cm, 0.2–1.5(–2.5) mm, apex acute to rounded, mucronate, lustrous, surfaces tomentulose, tardily glabrescent.

Flowers

hypanthium 1.7–2.5 × 2.5–3.8 mm, floccose or sparsely villous to glabrate;

sepals (1.2–)1.5–2.4 × 1.5–2.3 mm, margins glandular;

petals oblong-ovate to oblong-obovate, 2.4–4.5(–5.6) × 2–3.5 mm;

filaments 2.7–5 mm.

Capsules

5–7.5 × 3.5–5.4 mm.

Seeds

4.4–4.8 × 1–1.3 mm.

Corymbs

2.5–5.5 × (3–)3.5–6(–7) cm, mostly glabrate [tomentulose or canescent].

2n

= 30 (Mexico).

Vauquelinia corymbosa

Vauquelinia corymbosa subsp. angustifolia

Phenology Flowering spring.
Habitat Limestone, rarely igneous rock slopes and canyons, and gypsum flats, Chihuahuan Desert scrub and chaparral
Elevation 1000–1500 m (3300–4900 ft)
Distribution
from FNA
TX; Mexico
[BONAP county map]
from FNA
TX; Mexico (Chihuahua, Coahuila)
[BONAP county map]
Discussion

Subspecies 6 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies angustifolia is found in the flora area only in the mountains of Brewster and Presidio counties. Its leaves are typically 20 times longer than wide, with marginal serrations approximately one per centimeter or rarely entire; its inflorescences are mostly glabrate.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 9, p. 431. FNA vol. 9, p. 431.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Vauquelinia Rosaceae > subfam. Amygdaloideae > tribe Maleae > Vauquelinia > Vauquelinia corymbosa
Sibling taxa
V. californica
Subordinate taxa
V. corymbosa subsp. angustifolia
Synonyms V. angustifolia
Name authority Bonpland: in A. von Humboldt and A. J. Bonpland, Pl. Aequinoct. 1: 140, plate 40. (1807) (Rydberg) W. J. Hess & Henrickson: Sida 12: 148. (1987)
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