Euphorbia deppeana

Boiss. (1860)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Malpighiales Family: Euphorbiaceae Genus: Euphorbia

‘akoko [akoko], ‘ekoko [ekoko], koko, kōkōmālei [kokomalei]

Description

Key Characters:

Growth Form: Subshrubs.

Stems: Stems erect to decumbent, 0.1–1.2 m long, pilose to villous, glabrate with age, flowering branches 1–1.5 mm in diameter.

Roots:

Leaves: Leaves simple. Opposite, distichous. Blades ovate to elliptic or rarely orbicular, 6–20 mm long, 5–12 mm wide. Apex rounded to obtuse, often retuse. Base obtuse, oblique. Surfaces glabrous. Margins serrate or rarely entire. Petioles 0.5–1.5 mm long, glabrous or pilose above. Stipules rounded–triangular, 0.5–1 mm long, pilose, erose.

Flowers: Flowers in cyathia solitary in the leaf axils, peduncles 0.5–1.5 mm long, glabrous. involucre campanulate, 1–1.5 mm high, 1.5–3 mm wide, glabrous below and pilose beneath the glands, glands 4–5, pilose. Flowers unisexual and highly reduced. Pistillate flowers solitary, on a gynophore; staminate flowers in 5 groups or cymules, each with 1 to several flowers. Calyx (sepals) absent. Corolla (petals) absent. Male flower reduced to a single stamen, with an articulation at junction of pedicel and filament, subtended by slender bracteoles. Ovary superior; styles bifid more than ½ their length, 0.3–0.6 mm long; stigma slightly thickened.

Fruit: Capsules 1.5–2 mm long; glabrous; gynophores recurved slightly; exserted 1–1.5 mm from involucre; pubescent. Seeds unknown.

Ploidy:

Habitat:

Elevation Range: 10–100 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

O'ahu Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: Cent. Euphorb.: 6 (1860)

Other References

Wagner et al. 1990:607 (O [as Chamaesyce deppeana]); Govaerts et al. 2000:712 (NOM:Syn. C. deppeana = Euphorbia deppeana); Steinmann & Porter 2002/Yang & Berry 2011 (molecular support for nesting of Chamaesyce within Euphorbia)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information Colony on steep exposed slope w/ Eragrostis, Carex, Bidens, Metrosideros, and Casuarina PRESERVED_SPECIMEN Stone, B.C. 2775 Oahu BISH 5/3/1959
2 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information Colony on steep exposed slope w/ Eragrostis, Carex, Bidens, Metrosideros, and Casuarina PRESERVED_SPECIMEN lau, j. collector number: 2818 Oahu BISH 9/9/1986
3 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information Colony on steep exposed slope w/ Eragrostis, Carex, Bidens, Metrosideros, and Casuarina PRESERVED_SPECIMEN Lau, J. 2818 Oahu BISH 9/9/1986
4 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information Colony on steep exposed slope w/ Eragrostis, Carex, Bidens, Metrosideros, and Casuarina PRESERVED_SPECIMEN stone, b.c. collector number: 2775 Oahu BISH 5/3/1959
5 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information Colony on steep exposed slope w/ Eragrostis, Carex, Bidens, Metrosideros, and Casuarina PRESERVED_SPECIMEN lau, j. collector number: 2817 Oahu BISH 9/9/1986
6 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information Colony on steep exposed slope w/ Eragrostis, Carex, Bidens, Metrosideros, and Casuarina PRESERVED_SPECIMEN Lau, J. 2819 Oahu BISH 9/9/1986
7 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information Colony on steep exposed slope w/ Eragrostis, Carex, Bidens, Metrosideros, and Casuarina PRESERVED_SPECIMEN lau, j. collector number: 2819 Oahu BISH 9/9/1986
8 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN f. deppe deppe s.n. MO
9 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information On trees. PRESERVED_SPECIMEN thomas nuttall; b.1786; d.1859; nutt. s.n. DUKE
10 Euphorbia deppeana Boiss. Contact Bishop Museum Botany department for locality information Colony on steep exposed slope w/ Eragrostis, Carex, Bidens, Metrosideros, and Casuarina PRESERVED_SPECIMEN Lau, J. 2817 Oahu BISH 9/9/1986