Causonis trifolia

(L.) Mabb. & J.Wen (2017)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Vitales Family: Vitaceae Genus: Causonis

Description

Key Characters:

Growth Form: Lianas, woody.

Stems: Branchlets terete (cylindrical), with longitudinal ridges, sparsely pubescent, tendrils 3-5-branched.

Roots:

Leaves: Leaves compound (trifoliate). Alternate. Leaflets oval, 3-6 × 1.5-4 cm. Apex acute or obtuse. Base rounded, lateral leaflets with asymmetric and subrounded base. Surfaces abaxially pilose, adaxially with appressed hairs. Margins with 8-11 obtuse teeth on each side. Lateral veins 7 or 8 pairs, veinlets inconspicuously raised adaxially. Petioles 2.5-6 cm. Central petiolule 0.5-2.5 cm, lateral petiolules 4-8 mm, pilose;

Flowers: Compound dichasium axillary; peduncle 2-7.5 cm, pilose. Pedicel 1-3 mm, pubescent. Buds oval, 1.3-1.8 mm, apex rounded. Calyx 4, shallow and saucer-shaped, pilose, entire or undulate. Petals 4, elliptic, 1.3-1.8 mm, with gray papillose hairs. Anthers 4, oval. Ovary superior, lower part of ovary adnate to disk; style slender.

Fruit: Berries globose; 7-8 mm in diam.; 2- or 3-seeded. Seeds triangular; apex rounded; ventral holes obovate-elliptic upward 1/3 from base; ribs obtuse along margin; slightly raised.

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

  • Yes

Natural History

Statewide Status

Potentially Naturalizing

Island Status

Hawai'i Potentially Naturalizing

Dispersal Agents


Pollinators

Bibliography

Name Published In: Mabberley's Pl.-Book, ed. 4: 1101 (2017)

Other References

Wagner et al. 1990:1342 (H? [noted escaping in vicinity of DLNR Arboretum in Hilo, 1985], DESCR)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Causonis trifolia (L.) Mabb. & J.Wen DLNR Arboretum in Hilo-wall. This vine is also found in the surrounding neighborhood PRESERVED_SPECIMEN Stemmermann, R.L. 6930 Hawaii BISH 4/4/1985
2 Causonis trifolia (L.) Mabb. & J.Wen dlnr arboretum in hilo-wall. this vine is also found in the surrounding neighborhood PRESERVED_SPECIMEN stemmermann, r.l. mciver, j. collector number: 6930 Hawaii BISH 4/4/1985