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Delonix regia

(Bojer ex Hook.) Raf. (1837)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Fabales Family: Fabaceae Genus: Delonix

‘ohai ‘ula [ohai ula], flamboyant, flame tree, royal poinciana

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Description

Key Characters:

Growth Form: Trees 5–10(–15) m tall, with a broad sprawling crown, bark grayish, smooth.

Stems:

Roots:

Leaves: Leaves compound. Alternate. Leaflets numerous, opposite, elliptic, with 11–20(–25) pairs of pinnae, leaflets 10–25 pairs per pinna. Leaflet margins entire. Petiolate, without glands on petioles and rachises, the rachis with pubescent projections between the pinnae. Stipules pinnate with 4–5 segments.

Flowers: Flowers in rather short racemes from the axils of fallen leaves, often crowded toward the ends of young branches and appearing to form terminal panicles, bracts small, caducous. Flowers large, showy, caesalpinaceous, 8–15 cm in diameter, pedicels articulated; bracteoles absent. Calyx of 5 sepals, valvate, yellowish externally, red within. Corolla of 5 petals, long-clawed, crimson or scarlet, but one smaller and yellow with red blotches, 4–7 cm long. Stamens 10, exserted; filaments distinct, alternately slightly shorter and longer, pubescent. Ovary superior; short–stipitate; ovules numerous.

Fruit: Pods large; compressed; septate; oblong; flat; 20–70 cm long; 3–7 cm wide; dehiscent after falling to the ground. Seeds 18–45; transversely arranged; yellow or dark brown; subcylindrical; 20–25 mm long; 6–8 mm in diameter.

Ploidy: 2n = 24; 28

Habitat: Dry to mesic; disturbed sites.

Elevation Range: Low elevations.

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kuaihelani (Midway Atoll) Only found in cultivation
Kaua'i Only found in cultivation
O'ahu Only found in cultivation
Molokai Naturalized
Maui Only found in cultivation

Dispersal Agents

Wind

Pollinators

Notes

  • Description digitized by Dylan Charter
  • Description digitized from the Manual of the Flowering Plants of Hawaii
  • no collections that document its occurrence have been seen. Introduced to Hawai'i about 1855, probably by W.Hillebrand (Rock, l9l7a).

Bibliography

Name Published In: Fl. Tellur. 2: 92 (1837)

Other References

Wagner et al. 1990:664 (Mo? [undocumented by vouchers]); Staples & Herbst 2005:298 (KEY), 314 (DESCR)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Delonix regia (Bojer ex Hook.) Raf. Honolulu PRESERVED_SPECIMEN Rock, J.F.C. 2582 Oahu BISH 8/1/1910
2 Delonix regia (Bojer ex Hook.) Raf. honolulu PRESERVED_SPECIMEN rock, j.f.c. collector number: 2526 Oahu BISH 8/8/1910
3 Delonix regia (Bojer ex Hook.) Raf. east maui, hana district, poponui Cultivated. PRESERVED_SPECIMEN oppenheimer, h.l. collector number: h50734 Maui BISH 5/28/2007
4 Delonix regia (Bojer ex Hook.) Raf. Puuwaawaa, near transect T20 PRESERVED_SPECIMEN Derral Herbst Hawaii HAPI 8/26/1967
5 Delonix regia (Bojer ex Hook.) Raf. sand island yards; Plumeria rubra, Hibiscus rosa-sinensis, Nerium oleander PRESERVED_SPECIMEN starr, f. starr, k. collector number: 080607-01 Midway Atoll BISH 6/7/2008
6 Delonix regia (Bojer ex Hook.) Raf. Honolulu PRESERVED_SPECIMEN Rock, J.F.C. Collector Number: 2526 Oahu BISH 8/1/1910
7 Delonix regia (Bojer ex Hook.) Raf. Honolulu PRESERVED_SPECIMEN Rock, J.F.C. Collector Number: 2582 Oahu BISH 8/1/1910
8 Delonix regia (Bojer ex Hook.) Raf. East Maui, Hana District, Poponui Cultivated. PRESERVED_SPECIMEN Oppenheimer, H.L. Collector Number: H50734 Maui BISH 5/28/2007
9 Delonix regia (Bojer ex Hook.) Raf. u.h. grounds PRESERVED_SPECIMEN duvel, a. collector number: 24 Oahu BISH 9/17/1924
10 Delonix regia (Bojer ex Hook.) Raf. honolulu: manoa valley; university of hawaii manoa campus; # 42 on map Wooded flat top of ridge PRESERVED_SPECIMEN herbst, d.r. collector number: 544 Molokai BISH 8/26/1967
11 Delonix regia (Bojer ex Hook.) Raf. Waikiki, Honolulu garden PRESERVED_SPECIMEN Baker, R.J. s.n. Oahu BISH 7/20/1932
12 Delonix regia (Bojer ex Hook.) Raf. Lyon Arboretum, Honolulu, Holding Area PRESERVED_SPECIMEN Nagata, K.M. 267 Oahu BISH 7/14/1967
13 Delonix regia (Bojer ex Hook.) Raf. kalihi st., honolulu PRESERVED_SPECIMEN grant, m.l. collector number: 7113 Oahu BISH 7/18/1934
14 Delonix regia (Bojer ex Hook.) Raf. east maui, hana district, poponui PRESERVED_SPECIMEN oppenheimer, h.l. collector number: h50734 Oahu BISH 5/28/2007
15 Delonix regia (Bojer ex Hook.) Raf. Sand Island yards; Plumeria rubra, Hibiscus rosa-sinensis, Nerium oleander PRESERVED_SPECIMEN Starr, F. 080607-01 Midway Atoll BISH 6/7/2008
16 Delonix regia (Bojer ex Hook.) Raf. oahu, maile way between porteus hall and university of hawaii business school, manoa campus introduced ornamental PRESERVED_SPECIMEN palmer, r. 569 CM 9/19/1994
17 Delonix regia (Bojer ex Hook.) Raf. Maui PRESERVED_SPECIMEN Aborn, R. s.n. CM 5/18/1962
18 Delonix regia (Bojer ex Hook.) Raf. garden, as leaf letter curiosity PRESERVED_SPECIMEN IND
19 Delonix regia (Bojer ex Hook.) Raf. Manoa Campus PRESERVED_SPECIMEN Derral Herbst LD 8/26/1967
20 Delonix regia (Bojer ex Hook.) Raf. maui PRESERVED_SPECIMEN aborn, r. s.n. NY 5/18/1962
21 Delonix regia (Bojer ex Hook.) Raf. Lawai Valley. National Tropical Botanical Garden, McBryde Garden; Big Valley, west side of Lawai Stream. Cultivated. PRESERVED_SPECIMEN David H. Lorence 8903 Kauai PTBG 6/25/2002
22 Delonix regia (Bojer ex Hook.) Raf. Honolulu, Manoa, Kamehameha Avenue. PRESERVED_SPECIMEN W. M. Bush 34 Oahu PTBG 6/1/1974
23 Delonix regia (Bojer ex Hook.) Raf. Kalaheo. National Tropical Botanical Garden headquarters area at end of Papalina Road. Cultivated. PRESERVED_SPECIMEN Tim Flynn 7161 Kauai PTBG 11/29/2004
24 Delonix regia (Bojer ex Hook.) Raf. Lawai Valley. Cultivated plants of the National Tropical Botanical Garden. Cultivated. PRESERVED_SPECIMEN David H. Lorence 7205 Kauai PTBG 5/25/1992
25 Delonix regia (Bojer ex Hook.) Raf. Poponui. Cultivated. PRESERVED_SPECIMEN Hank Oppenheimer H50734 Maui PTBG 5/28/2007
26 Delonix regia (Bojer ex Hook.) Raf. u.h. manoa campus; #42 on map PRESERVED_SPECIMEN herbst, d.r. collector number: 544 Molokai US 8/26/1967
27 Delonix regia (Bojer ex Hook.) Raf. Koloa Distr., Nat'l Tropical Botanical Garden in Lawai Valley. Grown from seeds collected from a cult. tree at Kukuiula, Kauai. PRESERVED_SPECIMEN Lorence, D. H. 7205 Kauai US 5/25/1992
28 Delonix regia (Bojer ex Hook.) Raf. koloa distr., nat'l tropical botanical garden in lawai valley. grown from seeds collected from a cult. tree at kukuiula, kauai. PRESERVED_SPECIMEN d. h. lorence 7205 Kauai US 5/25/1992
29 Delonix regia (Bojer ex Hook.) Raf. Honolulu PRESERVED_SPECIMEN Fosberg, F.R. 14200 Oahu BISH 7/8/1937
30 Delonix regia (Bojer ex Hook.) Raf. U.H. Manoa campus; #42 on map PRESERVED_SPECIMEN Herbst, D.R. 544 Oahu BISH 8/26/1967
31 Delonix regia (Bojer ex Hook.) Raf. U.H. grounds PRESERVED_SPECIMEN Duvel, A. 24 Oahu BISH 9/17/1924
32 Delonix regia (Bojer ex Hook.) Raf. koloa, lawai valley, national tropical botanical garden PRESERVED_SPECIMEN lorence, d.h. collector number: 7205 Hawaii US 5/25/1992
33 Delonix regia (Bojer ex Hook.) Raf. manoa campus Near summit; On moss covered branches PRESERVED_SPECIMEN derral herbst VT 8/26/1967
34 Delonix regia (Bojer ex Hook.) Raf. Koloa, Lawai Valley, National Tropical Botanical Garden PRESERVED_SPECIMEN Lorence, D.H. 7205 Kauai BISH 5/25/1992
35 Delonix regia (Bojer ex Hook.) Raf. Kalihi St., Honolulu PRESERVED_SPECIMEN Grant, M.L. 7113 Oahu BISH 7/18/1934
36 Delonix regia (Bojer ex Hook.) Raf. Honolulu: Manoa Valley; University of Hawaii Manoa Campus; # 42 on map PRESERVED_SPECIMEN Herbst, D.R. 544 Oahu BISH 8/26/1967
37 Delonix regia (Bojer ex Hook.) Raf. Honolulu: Niu Valley area; 5863 Mahimahi St In yard. PRESERVED_SPECIMEN Boyd, T. s.n. Oahu BISH 6/10/1992
38 Delonix regia (Bojer ex Hook.) Raf. Oahu PRESERVED_SPECIMEN St. John, H. 10010 Oahu BISH 11/6/1929
39 Delonix regia (Bojer ex Hook.) Raf. Honolulu PRESERVED_SPECIMEN Rock, J.F.C. 2526 Oahu BISH 8/1/1910
40 Delonix regia (Bojer ex Hook.) Raf. waikiki, honolulu garden PRESERVED_SPECIMEN baker, r.j. Oahu BISH 7/20/1932
41 Delonix regia (Bojer ex Hook.) Raf. honolulu PRESERVED_SPECIMEN rock, j.f.c. collector number: 2582 Oahu BISH 8/8/1910
42 Delonix regia (Bojer ex Hook.) Raf. honolulu: niu valley area; 5863 mahimahi st In yard. PRESERVED_SPECIMEN boyd, t. collector number: s.n. Oahu BISH 6/10/1992
43 Delonix regia (Bojer ex Hook.) Raf. oahu PRESERVED_SPECIMEN st.john, h. collector number: 10010 Oahu BISH 11/6/1929
44 Delonix regia (Bojer ex Hook.) Raf. Honolulu PRESERVED_SPECIMEN Fosberg, F.R. Collector Number: 14200 Oahu BISH 7/8/1937
45 Delonix regia (Bojer ex Hook.) Raf. East Maui, Hana District, Poponui Cultivated. PRESERVED_SPECIMEN Oppenheimer, H.L. H50734 Maui BISH 5/28/2007
46 Delonix regia (Bojer ex Hook.) Raf. lyon arboretum, honolulu, holding area Molokai Forest Reserve, summit area between Hanalilolilo and Pepeopae Bog, in dense Metrosideros-Cibotium Cheirodendron rainforest. PRESERVED_SPECIMEN nagata, k.m. collector number: 267 Molokai BISH 7/14/1967
47 Delonix regia (Bojer ex Hook.) Raf. honolulu PRESERVED_SPECIMEN fosberg, f.r. collector number: 14200 Maui BISH 7/8/1937
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