Cayaponia americana

(Plumier ex Lamarck) Cogniaux in A. L. P. P. de Candolle and C. de Candolle

in A. L. P. P. de Candolle and C. de Candolle, Monogr. Phan. 3: 785. 1881

Common names: American melonleaf
Basionyms: Bryonia americana Plumier ex Lamarck in J. Lamarck et al., Encycl. 1: 498. 1785
Synonyms: Cayaponia americana var. angustiloba Cogniaux C. americana var. subintegrifolia Cogniaux
Treatment appears in FNA Volume 6. Treatment on page 47. Mentioned on page 48.
Vines herbaceous. Stems sulcate, glabrous; tendrils unbranched. Leaves: petiole 1–5 cm, glabrous; blade ovate to deltate or pentagonal, unlobed or shallowly to deeply 3–5-lobed, 5–14 × 5–13 cm, terminal lobe oblong-lanceolate, broadest at base, lateral lobes often sublobed, base cordate to truncate or rounded, margins remotely serrulate or denticulate, surfaces hirsute-hispidulous abaxially (not white-sericeous), pustulate-scabrous adaxially. Flowers: sepals deltate to triangular, 1–2 mm; petals pale green to whitish, corolla 6–10 mm; pistillate flowers solitary, axillary, or 3–5 on short racemoid branches, staminate flowers solitary, axillary. Fruits usually 1, axillary, or 3–5 on racemoid branches, orange to golden brown, short ellipsoid-cylindric, 1.5–2 cm; peduncle 8–15(–30) mm. Seeds usually 3, 10 mm.

Phenology: Flowering May–Aug.
Habitat: Rockland hammocks, hammock edges and clearings
Elevation: 0–20 m


Cayaponia americana is known in the flora area only from Miami-Dade County. The leaf blades are darker and thicker than those of C. quinqueloba, and peduncle length is greater in C. americana.

Selected References


Lower Taxa


Facts about "Cayaponia americana"
AuthorGuy L. Nesom +
Authority(Plumier ex Lamarck) Cogniaux in A. L. P. P. de Candolle and C. de Candolle +
BasionymsBryonia americana +
Common nameAmerican melonleaf +
DistributionFla. + and West Indies. +
Elevation0–20 m +
HabitatRockland hammocks, hammock edges and clearings +
Illustration copyrightFlora of North America Association +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering May–Aug. +
Publication titlein A. L. P. P. de Candolle and C. de Candolle, Monogr. Phan. +
Publication year1881 +
ReferenceNone +
Source xml grained fna xml/V6/V6 77.xml +
SynonymsCayaponia americana var. angustiloba + and C. americana var. subintegrifolia +
Taxon familyCucurbitaceae +
Taxon nameCayaponia americana +
Taxon parentCayaponia +
Taxon rankspecies +
VolumeVolume 6 +