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Euphorbia skottsbergii var. skottsbergii

This name is accepted

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

Description

Key Characters:

Growth Form: Subshrubs.

Stems: Stems erect or ascending to prostrate, 0.2–1(–2) m long, pilose to villous, glabrate, flowering branches occasionally nodose, 0.5–2 mm in diameter.

Roots:

Leaves: Leaves simple. Opposite, distichous, sometimes repand. Blades ovate–elliptic to obovate, (5–)12–20 mm long, 3–12 mm wide. Apex acute to rounded, retuse or mucronulate. Base cuneate to rounded, oblique. Upper surfaces glabrous; lower surfaces pilose to villous, at least on midvein and at basal margin. Margins serrate or entire. Petioles (1–)1.5–4 mm long, pilose to villous. Stipules rounded–triangular, 0.5–1 mm long, glabrous to villous, ciliate, erose.

Flowers: Flowers in cyathia solitary in the leaf axils, peduncles 0.5–1(–1.5) mm long, pilose to villous. involucre campanulate, 1–2 mm high, 1–2 mm wide, glabrous to pilose, glands 4(5), yellowish green to red, glabrous or pilose below. 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 green to white or red, bifid ca. ½ their length, 0.5–1 mm long, glabrous to sparsely villous; stigma thickened.

Fruit: Capsules green; 1.5–2 mm long; glabrous or sparsely tomentose; gynophores recurved; becoming erect just prior to dehiscence; exserted 1–2 mm from involucre; villous. Seeds gray to brown; 1–1.3 mm long; rugose.

Ploidy:

Habitat: Coastal vegetation and dry shrubland; apparently restricted to calcareous substrates.

Elevation Range: 5–200 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

O'ahu Endemic
Molokai Endemic

Dispersal Agents


Pollinators

Bibliography

Other References

Wagner et al. 1990:615 (O, Mo [as Chamaesyce skottsbergii var. skottsbergii]); Govaerts et al. 2000:835 (NOM:Syn. C. skottsbergii var. skottsbergii = Euphorbia skottsbergii var. skottsbergii); Morden & Gregoritza 2005 (molecular evidence presented for resurrecting C. skottsbergii var. audens as accepted name for var. skottsbergii populations on Moloka‘i); 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 skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information In arid region near coast. PRESERVED_SPECIMEN Degener, O. 8068 Molokai BISH 4/19/1928
2 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN c. n. forbes 2330.o Oahu US 3/14/1916
3 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN d. r. herbst 5873 Hawaii US 7/8/1976
4 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C. N. 14.Mo Molokai US 6/12/2020
5 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Degener, O. 8050 Oahu US 5/8/1932
6 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Nagata, K. M. 1845 Molokai US 5/26/1979
7 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Fosberg, F. R. 12810 Oahu US 1/12/1936
8 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN k. nagata 1845 Molokai US 5/26/1979
9 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN c. n. forbes 14.mo Molokai US
10 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C. N. 2330.O Oahu US 3/14/2016
11 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN o. degener 8050 Oahu US 5/8/1932
12 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN w. char, n. balakrishnan, e. funk & p. higashino 78.091 Oahu US 12/9/1978
13 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN k. nagata & b. kimura 1655 Kauai US 6/21/1978
14 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN otto degener 8068 WIS
15 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Light forest at beginning of trail. PRESERVED_SPECIMEN otto degener 8066 WIS
16 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN forbes, c.n. collector number: 2330.0 Oahu BISH 3/14/1916
17 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Provenance: wild-collected on Moloka`i at Mo`omomi Beach. Growing in full sun in sandy, dry soil. PRESERVED_SPECIMEN Orr, D. s.n. Oahu BISH 6/18/1991
18 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C.N. 14.Mo Molokai BISH 6/1/1912
19 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN forbes, c.n. collector number: 14.mo Molokai BISH 6/1/1912
20 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Coral plain. PRESERVED_SPECIMEN Forbes, C.N. 2330.O Oahu BISH 3/14/1912
21 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Forming slightly raised circular mats. On arid coastal, chiefly basic rocks. PRESERVED_SPECIMEN Degener, O. 8066 Molokai BISH 4/28/1928
22 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Lau, J. 2361 Oahu BISH 5/5/1986
23 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN otto degener 8071 MU
24 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Joel Lau 2361 Oahu PTBG 5/5/1986
25 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Fosberg, F. R.; Fosberg, V. O. 13436 Molokai US 12/26/1936
26 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Degener, O. 8066 Molokai US 4/28/2028
27 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN o. degener 8066 Molokai US 4/28/1928
28 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN degener, o. collector number: 8066 Maui US 4/28/1928
29 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Wood, K. R.; Perlman, S. P. 611 Molokai US 2/27/1991
30 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Char, W.; Balakrishnan, N. P.; Funk, E.; Higashino, P. 78.091 Oahu US 12/9/1978
31 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Nagata, K. M.; Kimura, B. 1655 Oahu US 6/21/1978
32 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN c. n. forbes & c. m. cooke 1760.o Oahu US 2/16/1912
33 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C. N.; Cooke, C. M. 1760.O Oahu US 2/16/2012
34 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Herbst, D. R. 5873 Oahu US 7/8/1976
35 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN f. r. fosberg 12810 Oahu US 1/12/1936
36 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN f. r. fosberg & v. o. fosberg 13436 Molokai US 12/26/1936
37 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN charles n. forbes forbes 620mo YPM 3/25/1915
38 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN k. r. wood & s. p. perlman 611 Oahu US 2/27/1991
39 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Skottsberg, C.J.F. 122 Oahu BISH 8/11/1922
40 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information On a thin bed of lithified limestone. In company with Sida, Heliotropium, Euphorbia degeneri. PRESERVED_SPECIMEN Nagata, K.M. 1845 Molokai BISH 5/26/1979
41 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Coral plain under Algaroba. PRESERVED_SPECIMEN Rock, J.F.C. 17034 Oahu BISH 11/1/1919
42 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information On arid coastal, chiefly basic rocks. Forming slightly raised circular mats. PRESERVED_SPECIMEN Degener, O. 8066 Molokai BISH 4/28/1928
43 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information In arid region near coast. PRESERVED_SPECIMEN degener, o. collector number: 8068 Molokai BISH 4/19/1928
44 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Coral plain under Algaroba. PRESERVED_SPECIMEN rock, j.f.c. collector number: 17034 Oahu BISH 11/1/1919
45 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN skottsberg, c.j.f. collector number: 122 Oahu BISH 8/11/1922
46 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN forbes, c.n. cooke, c.m. collector number: 1768.o Oahu BISH 2/16/1912
47 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information On sand dunes. Associated with Fimbristylis, Heliotropium, & Sporobolus. PRESERVED_SPECIMEN nagata, k.m. kimura, b. collector number: 1758 Molokai BISH 8/7/1978
48 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Arid fossil reel PRESERVED_SPECIMEN degener, o. collector number: 8050 Oahu BISH 5/8/1932
49 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Open mixed scrub. PRESERVED_SPECIMEN Char, W.P. 82.029a Molokai BISH 11/26/1982
50 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Corn, C. s.n. Molokai BISH 5/18/1982
51 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information On a thin bed of lithified limestone. In company with Sida, Heliotropium, Euphorbia degeneri. PRESERVED_SPECIMEN nagata, k.m. collector number: 1846 Molokai BISH 5/26/1979
52 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Raised reef withthin soil, basaltic boulders adn lava outcrops. PRESERVED_SPECIMEN Wagner, W.L. 4913 Molokai BISH 7/29/1983
53 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Forming slightly raised circular mats. On arid coastal, chiefly basic rocks. PRESERVED_SPECIMEN degener, o. collector number: 8066 Molokai BISH 4/28/1928
54 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Coral plain. PRESERVED_SPECIMEN Forbes, C.N. 2330a.O Oahu BISH 3/14/1916
55 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Along periphery of Prosopis forest PRESERVED_SPECIMEN char, w.p. et al. (sub char) collector number: 78.091 Oahu BISH 9/9/1978
56 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN shinsato, h. collector number: s.n. Molokai BISH 12/23/1958
57 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information bog; in deep wet moss PRESERVED_SPECIMEN lau, j. collector number: 2361 Kauai BISH 5/5/1986
58 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information On a grassy slope w/ Scaevola, guava, Hibiscus arnottianus, Ilex anomala, etc. PRESERVED_SPECIMEN corn, c. collector number: s.n. Oahu BISH 5/18/1982
59 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information On a thin bed of lithified limestone. In company with Sida, Heliotropium, Euphorbia degeneri. PRESERVED_SPECIMEN nagata, k.m. collector number: 1845 Molokai BISH 5/26/1979
60 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Along periphery of Prosopis forest PRESERVED_SPECIMEN Char, W.P. 78.091 Oahu BISH 9/9/1978
61 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Sida fallax mixed shrubland, coastal dry with Chamaesyce skottsbergii, Sesbania, Jacquemontia, Chamaesyce degeneri, Scaevola sericea, with Tetramolopium rockii; abundant, yet localized. Threats: Cattle. PRESERVED_SPECIMEN wood, k.r. perlman, s. collector number: 0611 Molokai BISH 2/27/1991
62 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN forbes, c.n. collector number: 2330.a.o Maui BISH 3/14/1916
63 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Dry coral flat, abundant. PRESERVED_SPECIMEN Fosberg, F.R. 12810 Oahu BISH 1/12/1936
64 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Forming slightly raised circular mats. On arid costal, chiefly basic rocks. PRESERVED_SPECIMEN Degener, O. 8066 Molokai BISH 4/28/1928
65 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Along roadside. In full sun with Rubus PRESERVED_SPECIMEN corn, c. collector number: s.n. Kauai BISH 5/17/1982
66 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Provenance: wild-collected on Moloka`i at Mo`omomi Beach. Growing in full sun in sandy, dry soil. PRESERVED_SPECIMEN orr, d. collector number: s.n. Oahu BISH 6/18/1991
67 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN takeuchi, w.n. collector number: s.n. Oahu BISH 8/8/1984
68 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Open mixed scrub. PRESERVED_SPECIMEN char, w.p. hall; funk; buelow collector number: 82.029a Molokai BISH 11/26/1982
69 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Sand flat. PRESERVED_SPECIMEN fosberg, f.r. fosberg, v.o. collector number: 13436 Molokai BISH 12/26/1936
70 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Sida fallax mixed shrubland, coastal dry with Chamaesyce skottsbergii, Sesbania, Jacquemontia, Chamaesyce degeneri, Scaevola sericea, with Tetramolopium rockii; abundant, yet localized. Threats: Cattle. PRESERVED_SPECIMEN Wood, K.R. 611 Molokai BISH 2/27/1991
71 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Wet forest PRESERVED_SPECIMEN degener, o. collector number: 8066 Kauai BISH 4/28/1928
72 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information On sand dunes. Associated with Fimbristylis, Heliotropium, & Sporobolus. PRESERVED_SPECIMEN Nagata, K.M. 1758 Molokai BISH 8/7/1978
73 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Sand flat. PRESERVED_SPECIMEN Fosberg, F.R. 13436 Molokai BISH 12/26/1936
74 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Shinsato, H. s.n. Molokai BISH 12/23/1958
75 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Scattered in Prosopis thicket with Sida, Leucaena, Chloris, and Verbesina in open shade and exposed areas PRESERVED_SPECIMEN Nagata, K.M. 1655 Oahu BISH 6/21/1978
76 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information On a thin bed of lithified limestone. In company with Sida, Heliotropium, Euphorbia degeneri. PRESERVED_SPECIMEN Nagata, K.M. 1846 Molokai BISH 5/26/1979
77 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Arid fossil reel PRESERVED_SPECIMEN Degener, O. 8050 Oahu BISH 5/8/1932
78 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C.N. 620.Mo Molokai BISH 3/25/1915
79 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Lithified sand dunes. Growing in pockets of sandy soil. PRESERVED_SPECIMEN Herbst, D.R. 2945 Molokai BISH 4/3/1973
80 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C.N. 2330.O Oahu BISH 3/14/1916
81 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Lithified sand dunes. Growing in pockets of sandy soil. PRESERVED_SPECIMEN herbst, d.r. pekelo jr., n. collector number: 2945 Molokai BISH 4/3/1973
82 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C.N. 1768.O Oahu BISH 2/16/1912
83 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Dry coral flat, abundant. PRESERVED_SPECIMEN fosberg, f.r. collector number: 12810 Oahu BISH 1/12/1936
84 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Takeuchi, W.N. s.n. Oahu BISH 6/6/1905
85 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN forbes, c.n. cooke, c.m. collector number: 1760.o Oahu BISH 2/16/1912
86 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN nagata, k.m. kimura, b. collector number: 1655 Oahu BISH 6/21/1978
87 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN wagner, w.l. gustafson, r.; martin, w.c.; herbst, d. collector number: 4913 Maui BISH 7/29/1983
88 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN forbes, c.n. collector number: 620.mo Molokai BISH 3/25/1915
89 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information PRESERVED_SPECIMEN Forbes, C.N. 1760.O Oahu BISH 2/16/1912
90 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Coral plain PRESERVED_SPECIMEN j. f. rock 17034 GH 11/6/1919
91 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Kiawe thickets, dry area with limestone sinkholes. PRESERVED_SPECIMEN Steve Perlman 5149 Oahu PTBG 1/27/1987
92 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Sida fallax mixed shrubland, coastal dry. PRESERVED_SPECIMEN K. R. Wood 611 Molokai PTBG 2/27/1991
93 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information yard PRESERVED_SPECIMEN rock, j.f.c. collector number: 17034 Oahu BISH 11/1/1919
94 Euphorbia skottsbergii var. skottsbergii Contact Bishop Museum Botany department for locality information Coral plain. PRESERVED_SPECIMEN forbes, c.n. collector number: 2330.o Oahu BISH 3/14/1912
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