Flora of North America species comparison

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Vauquelinia californica subsp. pauciflora
Photo is of parent taxon

Arizona rosewood
Young stems

loosely tomentulose, tardily glabrescent.
Leaves

petiole (1.5–)4–16(–22) mm;

blade green or yellow-green, lanceolate or oblong-lanceolate to elliptic or oblong-elliptic, sometimes oblong-ovate, (2.2–)3–7.5(–9) × (0.6–)0.8–1.4(–2) cm, surfaces glabrate or puberulent along midveins.
Flowers

hypanthium 1.5–2.5 × 2.5–3.3 mm, exterior puberulent, interior glabrate;

sepals 1.1–2.2 × 1.4–2 mm, abaxially puberulent to glabrate;

petals 3.4–5.4 × 2.4–3.4 mm;

filaments (2.5–)3–6 mm.
Capsules

(4.5–)5–6 × 3.5–4(–4.5) mm.
Seeds

3.8–5 × 1.1–1.4 mm.
Corymbs

1.5–5 × 1.7–7 cm, puberulent to glabrate.

Vauquelinia californica subsp. pauciflora
Phenology Flowering spring.
Habitat Limestone substrates in arid chaparral-desert scrub
Elevation 1400–2300 m (4600–7500 ft)
Distribution
from FNA
AZ; NM; Mexico (Chihuahua, Coahuila, Durango)
[BONAP county map]
Discussion

Subspecies pauciflora is known from Cochise County, Arizona, and Hidalgo County, New Mexico. These plants have relatively small (to 5.5 mm) and thickened leaves with short petioles (to 7 mm), and small inflorescences.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 9, p. 431.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Vauquelinia > Vauquelinia californica
Sibling taxa
V. californica subsp. californica, V. californica subsp. sonorensis
Synonyms V. pauciflora
Name authority (Standley) W. J. Hess & Henrickson: Sida 12: 135. (1987)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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