Jacquemontia floribunda (Kunth) Hallier f.

Wood, J.R.I., Clegg, R. Jacquemontia (Convolvulaceae) in Bolivia and Peru. Kew Bull 76, 375–420 (2021). DOI: https://doi.org/10.1007/s12225-021-09936-5

Morphology General Habit

Erect branched subshrub 50 – 100 cm high

Morphology Leaves

Leaves broadly to narrowly ovate, 3 – 8 × 1.5 – 3 cm, obtuse and shortly mucronate, both surfaces softly tomentellous

Morphology Reproductive morphology Inflorescences

Inflorescence of pedunculate, dense to lax, axillary cymes; peduncles 1 – 6 cm; sepals narrowly elliptic 2.5 – 3.5 × 2 – 2.5 mm, obtuse, outer tomentose, inner tomentose only in central part; corolla 1.2 – 1.3 mm.

Distribution

Almost endemic to NW Peru but just entering Loja (Cornejo & Bonifaz 2173 [QCNE]; Jaramillo & Winneskjold 5822 [QCA]) in Ecuador. The record from Venezuela (Austin 1982b) is probably an error. It is a plant of dry forest and xerophytic scrub, mostly in the Marañón Valley region, usually found between 500 and 1000 m, but occasionally reaching higher altitudes, especially in La Libertad where it is recorded at 2100 m. Map 4.

Conservation

This species is locally common in parts of northern Peru and is best classified as Near Threatened (NT) based on its extent of occurrence of 23,346.778 km2. It is essentially a plant of the Marañón valley region, which might face some threat from habitat fragmentation and the construction of dams to produce hydroelectricity (Marcelo-Peña et al. 2016). This threat may not be serious for this locally common species but evaluation of its populations will be needed to confirm this.