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Dodonaea viscosa

(Aalii, Florida Hopbush, Hop Bush, Hopbush, Hopseed Bush, Laumpuaye, Togovao)

Overview:

Highly variable shrub or small tree indigenous to Hawaii and widespread in the Pacific. Fruits about half an inch long, 2-4 winged, reddish purple. The fruit and leaves are commonly used in lei construction.

Conservation Status

Population Analysis

  • For the 835,580 species in the Class Magnoliopsida (Dicotyledons), we average 4.30 observations each in our database; for the Florida Hopbush, we have 1,569 observations. Compared to other species in this Class, this species is extremely common.
  • A two-sample t-test can be used to determine whether the trend in observations of the Florida Hopbush is the same as the trend in observations of Magnoliopsida. Is this species just as common, as a proportion of all observations, as it once was? The answer is no, changes in observation rate of this species significantly differ from changes in observation rate of its Class. (t=22.47, p<0.001)
  • How do observation rates of the Florida Hopbush differ from those of Magnoliopsida? To answer this, we examined the percentage of observerations for Magnoliopsida that were observations of the Florida Hopbush each year. We then correlated this percentage with observation year. If observations of the Florida Hopbush are becoming more common relative to other species of Magnoliopsida, the correlation should be positive, but if it is becoming less common, the correlation should be negative. In fact, the correlation is negative (r=-.81), with a negative slope (m = -.002), suggesting that the Florida Hopbush may be in decline relative to other species of Magnoliopsida. This correlation is statistically significant. (F = 88.57, p<.05)
  • The scatter chart to the right shows the percentage of all observations for Magnoliopsida each year that were observations of the Florida Hopbush.

Taxonomy

  • Domain: Eukaryota Whittaker & Margulis,1978 - eukaryotes
    • Kingdom: Plantae Haeckel, 1866 - Plants
      • Subkingdom: Viridaeplantae Cavalier-Smith, 1981 - Green Plants
        • Phylum: Tracheophyta Sinnott, 1935 ex Cavalier-Smith, 1998 - Vascular Plants
          • Subphylum: Spermatophytina (auct.) Cavalier-Smith, 1998 - Seed Plants
            • Infraphylum: Angiospermae auct.
              • Class: Magnoliopsida Brongniart, 1843 - Dicotyledons
                • Subclass: Rosidae Takhtajan, 1967
                  • Superorder: Rutanae Takhtajan, 1967
                    • Order: Sapindales Dumortier, 1829
                      • Family: Sapindaceae A.L. de Jussieu, 1789, nom. cons. - Soapberry Family
                        • Subfamily: Dodonaeoideae
                          • Genus: Dodonaea (doh-DOH-nee-uh) Miller, Gard. Dict. Abr., ed. 4. 1754. - Dodonaea
                            • Specific epithet: viscosa Royen ex Blume
                              • Botanical name: Dodonaea viscosa Royen ex Blume

Unambiguous Synonyms:

  1. Dodonaea ehrenbergii Schlecht.
  2. Dodonaea elaeagnoides Rudolph ex Ledeb. & Alderstam
  3. Dodonaea eriocarpa Sm.
  4. Dodonaea eriocarpa var. amphioxea O. Deg. & Sherff
  5. Dodonaea eriocarpa var. confertior Sherff
  6. Dodonaea eriocarpa var. costulata O.& I. Deg. & Sherff
  7. Dodonaea eriocarpa var. degeneri Sherff
  8. Dodonaea eriocarpa var. forbesii Sherff
  9. Dodonaea eriocarpa var. glabrescens Sherff
  10. Dodonaea eriocarpa var. hillebrandii Sherff
  11. Dodonaea eriocarpa var. hosakana Sherff
  12. Dodonaea eriocarpa var. lanaiensis Sherff
  13. Dodonaea eriocarpa var. molokaiensis O. Deg. & Sherff
  14. Dodonaea eriocarpa var. oblonga Sherff
  15. Dodonaea eriocarpa var. obtusior Sherff
  16. Dodonaea eriocarpa var. pallida O. Deg. & Sherff
  17. Dodonaea eriocarpa var. sherffii O.& I. Deg.
  18. Dodonaea eriocarpa var. skottsbergii Sherff
  19. Dodonaea eriocarpa var. vaccinioides Sherff
  20. Dodonaea eriocarpa var. varians O. Deg. & Sherff
  21. Dodonaea eriocarpa var. waimeana Sherff
  22. Dodonaea jamaicensis DC.
  23. Dodonaea microcarya Small
  24. Dodonaea sandwicensis Sherff
  25. Dodonaea sandwicensis var. latifolia O. Deg. & Sherff
  26. Dodonaea sandwicensis var. simulans Sherff
  27. Dodonaea spathulata Sm.
  28. Dodonaea stenoptera Hbd.
  29. Dodonaea stenoptera var. fauriei (Levl.) Sherff
  30. Dodonaea viscosa var. angustifolia (L. f.) Benth.
  31. Dodonaea viscosa var. arborescens (A. Cunningham ex Hook.) Sherff
  32. Dodonaea viscosa var. linearis (Harvey & Sonder) Sherff
  33. Dodonaea viscosa var. spathulata (Sm.) West
  34. Ptelea viscosa L.

Notes:

Publishing author: Hillebr. Publication: Fl. Haw. Isl. (1888). 88.

Publishing author: Sherff Publication: in Amer. Journ. Bot. xxxii. 202 (1945).

Publishing author: Sm. Publication: in Rees, Cycl. xii. n. 6.

Publishing author: DC. Publication: Prodr. (DC.) 1: 616 1824 [mid Jan 1824]

Publishing author: Sherff Publication: American Journal of Botany 32 1945 (4 May 1945)

Publishing author: Sherff Publication: Amer. J. Bot. 32: 214 1945

Basionym author: (Hook.f.)

Basionym: Sapindaceae Dodonaea aspleniifolia var. arborescens Hook.f.

Publishing author: Small Publication: Torreya 25: 39 1925

Publishing author: Sherff Publication: Amer. J. Bot. 32: 210 1945

Publishing author: Schltdl. Publication: Linnaea 18: 36 (err. typ. 52) 1844

Publishing author: Benth. Publication: Fl. Austral. 1: 476 1863

Basionym author: (L.f.)

Basionym: Sapindaceae Dodonaea angustifolia L.f.

Name Status: Accepted Name. Latest taxonomic scrutiny: 15-Mar-2000

Place of publication: Enum. syst. pl. 19. 1760 (Select. stirp. amer. hist. 109. 1763)

Name verified on 11-Dec-2002 by ARS Systematic Botanists. Last updated: 04-Aug-2006

Physical Description

Family Sapindaceae:

Trees or shrubs (or woody vines with tendrils in Cardiospermum and allied genera), rarely herbaceous climbers. Indumentum usually of simple hairs, often glandular on young parts, buds, and inflorescences. Leaves alternate, usually estipulate; leaf blade pinnate or digitate, rarely simple; leaflets alternate to opposite, entire or dentate to serrate. Inflorescence a terminal or axillary thyrse; bracts and bracteoles small. Flowers unisexual, rarely polygamous or bisexual, actinomorphic or zygomorphic, usually small. Sepals 4 or 5(or 6), equal or unequal, free or connate at base, imbricate or valvate. Petals 4 or 5(or 6), sometimes absent, free, imbricate, usually clawed, often with scales or hair-tufted basal appendages. Disk conspicuous, fleshy, complete or interrupted, lobed or annular, rarely absent. Stamens 5-10(-74), usually 8, rarely numerous, variously inserted but usually within disk, often exserted in male flowers; filaments free, rarely connate; anthers dorsifixed, longitudinally dehiscent, introrse; staminodes sometimes present in carpellate flowers, but filaments shorter and anthers with a thick wall, indehiscent. Ovary superior, (1-) 3(or 4) -loculed; ovules 1 or 2(or several) per locule, placentation axile, rarely parietal, anatropous, campylotropous, or amphitropous; style usually apical (terminal), semigynobasic in Allophylus [gynobasic in Deinbollia Schumacher & Thonning]; stigma entire or 2 or 3(or 4) -lobed, usually rudimentary in male flowers. Fruit a loculicidal capsule, berry, or drupe, or consisting of 2 or 3 samaras, often 1-seeded and 1-loculed by abortion. Seeds 1(or 2 or more) per locule; testa black or brown, hard, often with a conspicuous fleshy aril or sarcotesta; embryo curved, plicate, or twisted, oily and starchy; endosperm usually absent. 2n = 20-36.

One hundred thirty-five genera and ca. 1500 species: widely distributed in tropical and subtropical regions, especially well represented in tropical SE Asia; 21 genera (one endemic) and 52 species (16 endemic, one introduced) in China.

There is some variation in the circumscription of Sapindaceae in taxonomic treatments, particularly with regard to the inclusion of genera from the closely related, predominately temperate families Aceraceae and Hippocastanaceae. Several studies including Müller and Leenhouts (in Ferguson & Müller, Evolutionary Significance Exine: 407-445. 1976), and more recently those based on molecular data (Stevens, Angiosperm Phylogeny Website, 2001 onward; Harrington et al., Syst. Bot. 30: 366-382. 2005), supported the recognition of a broadly defined Sapindaceae incorporating Aceraceae and Hippocastanaceae. Harrington et al. (loc. cit.) proposed four subfamilies or clades, comprising Sapindoideae (including

Koelreuteria and Ungnadia Endlicher), Dodonaeoideae, Hippocastanoideae (including taxa previously referred to Aceraceae and Hippocastanaceae, plus Handeliodendron), and a monotypic "Xanthoceratoideae". Within Hippocastanoideae, Acer Linnaeus and Dipteronia Oliver comprise a monophyletic group and are treated in this Flora as Aceraceae. Similarly, Aesculus Linnaeus, Billia Peyritsch, and the Chinese endemic Handeliodendron Rehder form a monophyletic group and are treated here as Hippocastanaceae. There is some support for "Xanthoceratoideae" being the first lineage to diverge within the broadly defined Sapindaceae assemblage; consequently, Xanthoceras is treated separately from genera in Sapindoideae and Dodonaeoideae in the following account of Sapindaceae s.s. The sequence of genera reflects Müller and Leenhouts (loc. cit.) as modified by recent analyses based on molecular and morphological data, rather than following the order developed by Radlkofer (Sitzungsber. Math.-Phys. Cl. Königl. Bayer. Akad. Wiss. München 20: 105-379. 1890; and in Engler, Pflanzenreich 98a-h(IV. 165) : 1-1539. 1931-1934), which was previously followed in FRPS.

The main economic uses of this family include (1) timber: Amesiodendron chinense, Dimocarpus longan, D. confinis, Litchi chinensis, Pavieasia kwangsiensis, and Pometia pinnata; (2) fruit: Dimocarpus longan, Litchi chinensis, and Nephelium lappaceum; (3) medicine: Dimocarpus longan (arillode), Litchi chinensis (seeds), and Sapindus saponaria (roots) ; (4) oil: Amesiodendron chinense, Delavaya toxocarpa, and Xanthoceras sorbifolium. Saponins occur widely in the family, commonly used as a fish poison and for their detergent properties.[1]

Genus Dodonaea:

Shrubs or small trees, evergreen, sometimes with a glandular resinous exudate on leaves and inflorescences. Leaves simple or pinnate, estipulate. Flowers bisexual or unisexual and plants dioecious, actinomorphic, solitary and axillary or arranged in terminal and axillary racemes, corymbs or panicles. Sepals (3-) 5(-7), valvate or sometimes imbricate, deciduous when mature. Petals absent. Disk inconspicuous, absent in male flowers. Stamens (male flowers) 5-8; filaments short; anthers ellipsoid, obtusely 4-gonous, connectives prominent. Ovary (female flowers) ellipsoid, obcordiform, or transversely ellipsoid, 2- or 3(or 5 or 6) -gonous, 2- or 3(or 5 or 6) -loculed; ovules 2 per locule, one ascending, and one pendulous; style apical, much longer than ovary, often twisted, deciduous; stigma 2-6-lobed. Capsules samaralike, 2- or 3(-6) -loculed, septifragal, boatlike. Seeds 1 or 2 per locule, obovoid, lenslike, or subglobose; testa crustaceous, arillode present or absent; hilum thick; embryo revolute, cotyledons linear. 2n = 28, 30, 32.

About 65 species: mainly in Australia and neighboring islands; one species in China.[2]

Species Dodonaea viscosa:

The female flowers of this native Hawaiian species lack a corolla. Note the 2- or 3-lobed ovary and style. The number of carpels varies from 2 to 4 in this species. The male flowers have about 8 stamens. Though usually dioecious, this species may exhibit monoecy.

Habit: Evergreen.

Flowers: Bloom Period: March, April, May, June, July, August, September. • Flower Color: green, maroon

Images:

Distribution

Range and Population

Florida (Southeastern U.S.A., Northern America) Caribbean

Native: Pantropic.

Growth

Culture: Space 36-48" apart.

Soil: Minimum pH: 5.1 • Maximum pH: 8.5

Sunlight: Sun Exposure: Light Shade.

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 9a, 9b, 10a, 10b, 11. (map)

Similar Species

Members of the genus Dodonaea:

There are approximately 264 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them: D. sinuolata acrodentata · D. sinuolata sinuolata · D. viscosa arizonica · D. viscosa burmanniana · D. viscosa laurina · D. viscosa mucronata · D. viscosa viscosa · D. acerosa · D. adenophora · D. adenophora var. adenophora · D. adenophora var. ovata · D. adenophora x · D. amblyophylla · D. angustifolia · D. angustissima · D. aptera · D. arabica · D. arborea · D. arizonica · D. asplenifolia · D. asplenifolia var. arborescens · D. aspleniifolia · D. aspleniifolia var. arborescens · D. aspleniifolia var. aspleniifolia · D. attenuata · D. attenuata var. attenuata · D. attenuata var. denticulata · D. attenuata var. linearis · D. attenuata var. subintegra · D. baueri (Crinkled Hopbush) · D. bialata · D. biloba · D. boroniaefolia · D. boronifolia · D. boroniifolia · D. brasiliensis · D. burmanni · D. burmanniana · D. bursarifolia · D. bursariifolia · D. bursariifolia var. bursariifolia · D. bursariifolia var. major · D. bursariifolia x · D. caespitosa · D. caffra · D. caleyana · D. californica · D. calycina · D. calycina var. calycina · D. calycina var. genuina · D. calycina var. truncatiales · D. camfieldi · D. camfieldii · D. candolleana · D. ceratocarpa · D. cestroides · D. concinna · D. conferta · D. conglomerata · D. coriacea · D. cryptandroides · D. cuneata · D. cuneata var. coriacea · D. cuneata var. cuneata · D. cuneata var. rigida · D. deflexa · D. denticulata · D. dioica · D. discolor · D. divaricata · D. dombeyana · D. dubia · D. elaegnoides · D. ericaefolia · D. ericifolia (Fine-Leaved Hop-Bush) · D. ericoides · D. eriocarpa f. galapagensis · D. eriocarpa f. heterocarpa · D. falcata · D. fauriei · D. filifolia · D. filiformis · D. foliolosa · D. forsteri · D. gilifolia · D. glandulosa · D. hackettiana · D. hansenii · D. heteromorpha · D. heterophylla · D. hexandra · D. hexandra x · D. hirsuta · D. hirtella · D. hispidula · D. hispidulus · D. humifusa · D. humifusa var. hirtella · D. humifusa var. humifusa · D. humilis

Bibliography

  • Brako, L. & J. L. Zarucchi. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45. (L Peru)
  • Englert, J. M. et al. 1999–. USDA-NRCS Improved conservation plant materials released by NRCS and cooperators. (NRCS Cons Pl Mat)
  • Exell, A. W. et al., eds. 1960–. Flora zambesiaca. (F Zamb)
  • George, A. S., ed. 1980–. Flora of Australia, new ed. (F Aust)
  • Holm, L. et al. 1979. A geographical atlas of world weeds. (Atlas WWeed)
  • Howard, R. 1974–1989. Flora of the lesser Antilles. (F LAnt) [lists as D. viscosa (L.) Jacq.].
  • Howard, R. A. 1973. The Enumeratio and Selectarum of Nicolaus von Jacquin. J. Arnold Arbor. 54:435–470.
  • Liogier, H. A. 1984–. Descriptive flora of Puerto Rico and adjacent islands. (F PuertoR) [lists as D. viscosa (L.) Jacq.].
  • Lo Hsien-shui & Chen Te-chao. 1985. Sapindaceae (excluding Handeliodendron). In: Law Yuh-wu & Lo Hsien-shui, eds., Fl. Reipubl. Popularis Sin. 47(1): 1-72.
  • Macbride, J. F. et al., eds. 1936–1971. Flora of Peru.; new ser. 1980- (F Peru) [lists as D. viscosa (L.) Jacq.].
  • McGuffin, M. et al., eds. 2000. Herbs of commerce, ed. 2. (Herbs Commerce ed2)
  • PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) - on-line resource. (PROTABASE)
  • Standley, P. C. & J. A. Steyermark. 1946–1976. Flora of Guatemala. (F Guat) [lists as D. viscosa (L.) Jacq.].
  • Turrill, W. B. et al., eds. 1952–. Flora of tropical East Africa. (F TE Afr)
  • Woodson, R. E. & R. W. Schery, eds. 1943–1980. Flora of Panama. (F Panama) [lists as D. viscosa (L.) Jacq.].

More Info

Notes

Contributors:

Data Sources:

Accessed through GBIF Data Portal December 04, 2007:

Identifiers:

Footnotes:

  1. Nianhe Xia & Paul A. Gadek "Sapindaceae". in Flora of China Vol. 12 Page 1, 6. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.
  2. "Dodonaea". in Flora of China Vol. 12 Page 6, 7. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

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Last Revised: May 15, 2008