Vines, perennial, or subshrubs. Herbage hairy, hairs stellate, 4–6-armed, arms spreading or porrect. Stems trailing, twining, or ± erect, to 4 m. Leaf blades broadly ovate or ovate, 15–30(–65) × 10–25(–48) mm, base shallowly cordate or truncate, apex usually acute, rarely ob­tuse. Inflorescences ± lax, 1–7-flowered, bracts linear. Flowers: sepals unequal, outers broadly ovate to suborbiculate, 5–9 mm, longer and wider than inners, base subcordate, apex acute, surfaces hairy; corolla white to pale blue or lavender, broadly funnelform, 20–25 mm, limb entire or 5-angled. Cap­sules broadly ovoid, 5–6 mm. Seeds 2–2.5 mm.

Phenology: Flowering May–Jan.
Habitat: Oak woodlands, basalt hills, rocky cliffs.
Elevation: 1000–1500 m.

Distribution

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Ariz., Mexico (Sinaloa, Sonora), Central America.

Discussion

Jacquemontia pringlei is endemic to the Sonoran Desert and reaches its northern limit of distribution in Pima County, Arizona; a report for Yuma County was evidently a mistake.

Selected References

None.

Lower Taxa

None.