Jacquemontia ovalifolia

(Choisy) Hallier f. (1893)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Solanales Family: Convolvulaceae Genus: Jacquemontia

Description

Key Characters:

Growth Form:

Stems:

Roots:

Leaves:

Flowers:

Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

PROPAGATION/CULTIVATION

  • The fruit of Jacquemontia ovalifolia is a 1/4 inch tan or brown papery capsule containing 1 to 4 small seeds. Koob recommends using fresh seed.
  • To remove the seeds from the capsule, air dry them at room temperature in a bowl or paper bag. Carefully rub the capsules through a strainer with the appropriate size mesh. The seeds should fall through leaving the debris in the strainer.
  • Plant the cleaned seed in a well-drained medium such as 3 parts perlite to 1 part peat or a mix of 1 part perlite to 1 part peat to 1 part cinders. Plant the seeds shallowly, barely covering them with media. Place the seeds in a covered area and water daily. Germination takes 1 week to 2 months. (Bornhorst 1996; Koob 1999; Lilleng-Rosenberger 1998; NTBG 1992; Wagner 1990)
  • Jacquemontia ovalifolia often forms roots where leaf nodes come into contact with the soil and is easily grown from cuttings. Cuttings should be 3 to 4 inches long with 2 or 3 nodes per cutting. Leaves should be trimmed to reduce water loss through transpiration.
  • Plant cuttings in a well-drained medium such as 3 parts perlite to 1 part vermiculite; Koob suggests that they are so easily rooted that almost any medium will be adequate if kept moist. Boche reports that over 65% of stem and tip cuttings rooted under 50% shade using a medium of 3 parts peat moss to 1 part vermiculite. Rooting hormone is not required. Place in a shaded location and water regularly. (Boche 1992; Bornhorst 1996; Koob 1999; NTBG 1992)
  • Lynch found that explants made from terminal vine sections of Jacquemontia ovalifolia were more frequently successful and less often contaminated than those from older parts of the vine. She reports disinfesting buds taken from terminal vine sections with 10 percent and 5 percent concentrations of bleach (Clorox). There is no indication given whether differences were observed between the two concentrations of disinfestant.
  • The disinfested buds were placed in modified Murashige and Skoog (MS) medium with 20 grams of sucrose and without any plant hormones (PGRs). She used the resulting shoots to test two levels of benzyladenine (BA) on shoot proliferation. The two BA concentrations were added to modified MS medium. She found that shoot proliferation in Jacquemontia ovalifolia was better in the medium containing the higher concentration of 1.0 mg/L BA. This report did not include information on rooting medium, but Lynch noted that roots formed on 6 of 44 cultures in these experiments. (Lynch 1996) [Data from Herring, E. C., & Criley, R. A. (2003). The Hawaiian Native Plant Propagation Web Site: Developing a Webbased Information Resource. HortTechnology, 13(3), 545-548. https://www.ctahr.hawaii.edu/hawnprop/]

Natural History

Statewide Status

Only found in cultivation

Island Status

Kaua'i Only found in cultivation
O'ahu Only found in cultivation

Dispersal Agents


Pollinators

Bibliography

Name Published In: Bot. Jahrb. Syst. 16: 543 (1893)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date