Pacific Island Ecosystems at Risk (PIER)


Tabebuia berteroi


RISK ASSESSMENT RESULTS: Low risk, score: -4


Australian/New Zealand Weed Risk Assessment adapted for Hawai‘i.
Information on Risk Assessments
Original risk assessment
Tabebuia berteroi (DC.) Britton Family: Bignoniaceae
Common Name(s): Hispaniolan rosy trumpet tree, dwarf white Tecoma
Syn: Tecoma berteroi

Answer

Score

1.01

Is the species highly domesticated?

y=-3, n=0

n

0

1.02

Has the species become naturalized where grown?

y= 1, n=-1

1.03

Does the species have weedy races?

y=1, n=-1

2.01

Species suited to tropical or subtropical climate(s) (0-low; 1-intermediate; 2-high) – If island is primarily wet habitat, then substitute “wet tropical” for “tropical or subtropical”

See Append 2

2

2.02

Quality of climate match data (0-low; 1-intermediate; 2-high) see appendix 2

2

2.03

Broad climate suitability (environmental versatility)

y=1, n=0

y

1

2.04

Native or naturalized in regions with tropical or subtropical climates

y=1, n=0

y

1

2.05

Does the species have a history of repeated introductions outside its natural range? y=-2

?=-1, n=0

y

3.01

Naturalized beyond native range y = 1*multiplier (see Append 2), n= question 2.05

n

-2

3.02

Garden/amenity/disturbance weed y = 1*multiplier (see Append 2)

n=0

n

0

3.03

Agricultural/forestry/horticultural weed y = 2*multiplier (see Append 2)

n=0

n

0

3.04

Environmental weed y = 2*multiplier (see Append 2)

n=0

n

0

3.05

Congeneric weed y = 1*multiplier (see Append 2)

n=0

y

2

4.01

Produces spines, thorns or burrs

y=1, n=0

n

0

4.02

Allelopathic

y=1, n=0

n

0

4.03

Parasitic

y=1, n=0

n

0

4.04

Unpalatable to grazing animals

y=1, n=-1

4.05

Toxic to animals

y=1, n=0

4.06

Host for recognized pests and pathogens

y=1, n=0

4.07

Causes allergies or is otherwise toxic to humans

y=1, n=0

4.08

Creates a fire hazard in natural ecosystems

y=1, n=0

4.09

Is a shade tolerant plant at some stage of its life cycle

y=1, n=0

4.10

Tolerates a wide range of soil conditions (or limestone conditions if not a volcanic island)

y=1, n=0

n

0

4.11

Climbing or smothering growth habit

y=1, n=0

n

0

4.12

Forms dense thickets

y=1, n=0

5.01

Aquatic

y=5, n=0

n

0

5.02

Grass

y=1, n=0

n

0

5.03

Nitrogen fixing woody plant

y=1, n=0

n

0

5.04

Geophyte (herbaceous with underground storage organs -- bulbs, corms, or tubers)

y=1, n=0

n

0

6.01

Evidence of substantial reproductive failure in native habitat

y=1, n=0

n

0

6.02

Produces viable seed.

y=1, n=-1

y

1

6.03

Hybridizes naturally

y=1, n=-1

6.04

Self-compatible or apomictic

y=1, n=-1

n

-1

6.05

Requires specialist pollinators

y=-1, n=0

n

0

6.06

Reproduction by vegetative fragmentation

y=1, n=-1

n

-1

6.07

Minimum generative time (years) 1 year = 1, 2 or 3 years = 0, 4+ years = -1

See left

4+

-1

7.01

Propagules likely to be dispersed unintentionally (plants growing in heavily trafficked areas)

y=1, n=-1

n

-1

7.02

Propagules dispersed intentionally by people

y=1, n=-1

y

1

7.03

Propagules likely to disperse as a produce contaminant

y=1, n=-1

n

-1

7.04

Propagules adapted to wind dispersal

y=1, n=-1

y

1

7.05

Propagules water dispersed

y=1, n=-1

n

-1

7.06

Propagules bird dispersed

y=1, n=-1

n

-1

7.07

Propagules dispersed by other animals (externally)

y=1, n=-1

n

-1

7.08

Propagules survive passage through the gut

y=1, n=-1

8.01

Prolific seed production (>1000/m2)

y=1, n=-1

n

-1

8.02

Evidence that a persistent propagule bank is formed (>1 yr)

y=1, n=-1

8.03

Well controlled by herbicides

y=-1, n=1

8.04

Tolerates, or benefits from, mutilation, cultivation, or fire

y=1, n=-1

8.05

Effective natural enemies present locally (e.g. introduced biocontrol agents)

y=-1, n=1

Total score:

-4

Supporting data:

Notes

Source

1.01

No evidence that the plant has been in cultivation for 20 generations or has been subject to human selection pressure sufficient to distinguish it from wild varieties

 

1.02

Answer not scored because conditions for scoring (1.01 must = y) were not met

 

1.03

Answer not scored because conditions for scoring (1.01 must = y) were not met

 

2.01

(1)Grown in India as an ornimental, but not common. "Hispaniolan Rosy Trumpet Tree is yet another Tabebuia from latin America. It comes from the island of Hispaniola near Cuba." (2)"Distributional range: Native: SOUTHERN AMERICA Caribbean: Cuba - Santiago de Cuba; Dominican Republic; Haiti" (3)Grown in Hawaii as an ornimental and present as intentional plantings in Honolulu, HI. "Hawaiian Islands Oahu Honolulu, University of Hawaii Manoa Campus; near Moore Hall; Hawaiian Islands Oahu Honolulu, Foster Gardens; Hawaiian Islands Oahu Honolulu, Makiki area. Cultivated on the grounds of the Contemporary Museum, 2411 Makiki Heights Drive; Hawaiian Islands Oahu Honolulu, University of Hawaii Manoa Campus, Moore Hall"

(1)Girija, T. Webpage: Flowers of India. Accessed 2008. http://www.flowersofindia.net/ (2)Sinnott, Q. Webpage: National Plant Germplasm System Accessed 2008. USDA- ARS.http://www.ars-grin.gov/npgs/aboutgrin.html (3)The Pacific Basin Information Node of the U.S. Geological Survey. Webpage: Botanical database. Accessed 2008. http://www2.bishopmuseum.org/natscidb/default.asp?w=PBIN&pt=t

2.02

Native range is clearly known

 

2.03

(1)"Distribution. Common throughout Hispaniola … Sea level to 1200(-1600) m elevation." (2)In native range, T. berteroi forms a dominant component of "Low-elevation Broadleaved Forests. This forest association occurred from 1,130 m to as high as 2,100 m but was the dominant community type between 1,200–1,500 m elevation"

(1)Gentry, A.H. 1992. Bignoniaceae-Part II (Tribe Tecomeae). Flora Neotropica Monograph 25 (II): 147-148 (2)Sherman, R.E., P.H. Martin, and T.J. Fahey. 2005. Vegetation-environment relationships in forest ecosystems of the Cordillera Central, Dominican Republic. Journal of the Torrey Botanical Society 132(2): 293–310

2.04

(1)"Native: SOUTHERN AMERICA Caribbean: Cuba - Santiago de Cuba; Dominican Republic; Haiti"

(1)Sinnott, Q. Webpage: National Plant Germplasm System Accessed 2008. USDA- ARS.http://www.ars-grin.gov/npgs/aboutgrin.html

2.05

(1)Cultivated in India as an ornimental (2)Yes. This plant cultivated in Hawaii for its beautiful flowers.

(1)Girija, T. Webpage: Flowers of India. Accessed 2008. http://www.flowersofindia.net/ (2)Imada, C.T., G.W. Staples, and D.R. Herbst. Webpage: Annotated Checklist of Cultivated Plants of Hawai‘i. Accessed 2008. http://www2.bishopmuseum.org/HBS/botany/cultivatedplants/

3.01

No evidence

 

3.02

No evidence

 

3.03

No evidence

 

3.04

No evidence

 

3.05

(1)Tabebuia aurea, T. heterophylla, T. haemantha, T. lepidophylla, T. lepidota and T. pallida are identified as weeds in various parts of the globe

(1)Randall, R.P. 2002. A Global Compendium of Weeds. Shannon Books, Melbourne, Victoria. 905 pages

4.01

(1)No. See description: "Small tree to 10 m tall, dicotomously branched, the branches terete (smooth-surfaced)"

(1)Gentry, A.H. 1992. Bignoniaceae-Part II (Tribe Tecomeae). Flora Neotropica Monograph 25 (II): 147-148

4.02

No evidence

 

4.03

(1)Tabebuia is not listed among parasitic plant genera.

(1)USDA Animal Plant Health Inspection Service Staff. 2008. Parasitic Plant Genera List

4.04

Unknown

4.05

Unknown

4.06

Unknown

4.07

(1)Possibly. "Some anti-microbial and chemical properties were analyzed from Tabebuia berteroi (DC.) Britt. (Bignoniaceae), a tree whose leaves are known to have anti-cancer activity. Both water and ethanol extracts of the leaves were made, and comparison of these two extracts showed some difference in bio-activity. The water decoction inhibited the growth of the gram-negative (-) bacteria Pseudomonas aeruginosa while the other extract did not show inhibition at the same concentration (1 g dry material in 10 mL solvent). No activity against the yeast Candida albicans or the gram-positive (+) bacteria Bacillus cereus was observed. Chemical analysis showed the presence of coumarins, phenols, flavonoids, and saponins. The method used for chemical determination was thin-layer chromatography with silica gel on aluminum plates as the stationary phase and thinner as the non-polar mobile phase. Further studies should be done to determine and isolate the active principals from the extracts and to see if they can induce apoptosis, which is very important in cancer therapy."

(1)Mladenovic, D., M. Alford, F. Guánchez, M. Aregullin, and E. Rodriguez. 2001. The Bio-Activity of Aceituno, Tabebuia berteroi (Bignoniaceae). Emanations Volume 3 Biology Abstracts

4.08

Unknown

4.09

(1)[in regards to Tabebuia, species undefined] "conditions: Sun. Prefers a light, humus-enriched soil which is well-drained. Protect from harsh weather. Frost and drought tender."

(1)Lake, J. 1996. Gardening in a Hot Climate. Published by Lothian Books. Port Melbourne, Victoria. 240 Pages

4.10

(1)[in regards to Tabebuia, species undefined] "conditions: Sun. Prefers a light, humus-enriched soil which is well-drained. Protect from harsh weather. Frost and drought tender." (2)"Native to the island of Hispaniola in the Caribbean, this 30-foot species is popular for use as an accent specimen. It can be employed as an open screen or windbreak. A rather rapid grower, it has found good use in new developments wgere it will persist to become a substantial lanscape accent. Thriving in almost any well-drained soil, it is moderately wind and drought tolerant"

(1)Lake, J. 1996. Gardening in a Hot Climate. Published by Lothian Books. Port Melbourne, Victoria. 240 Pages (2)Rauch, F.D. and P.R. Weissich. 2000. Plants for Tropical Landscapes: A Gardener's Guide. University of Hawaii Press

4.11

(1)No, see growth habit: "It is a small tree with obovate leaves 5-12 cm long. Leaves are hairless, thick and pointed. The tree bears trumpet shaped flowers with 5 flaring petals with crinkled margins. The flowers, 5-6 cm long, are rosy white, with yellow in the throat."

(1)Girija, T. Webpage: Flowers of India. Accessed 2008. http://www.flowersofindia.net/

4.12

Unknown

5.01

(1)No. See growth description: "Medium tree with dark green dull leathery leaves. Flowers white to very pale pink."

(1)National Tropical Botanical Garden Website. Accessed 2008. http://ntbg.org/

5.02

(1)No. In the family Bignoniaceae (Jacaranda family)

(1)BayScience Foundation, Inc. Webpage: Zipcodezoo Plant Index. Accessed 2008. http://zipcodezoo.com/Plants/

5.03

No evidence of nitrogen fixaiton.

 

5.04

No does not produce tubers, corms, or bulbs

 

6.01

(1)A common and dominant component of secondary riparian forests

(1)Sherman, R.E., P.H. Martin, and T.J. Fahey. 2005. Vegetation-environment relationships in forest ecosystems of the Cordillera Central, Dominican Republic. Journal of the Torrey Botanical Society 132(2): 293–310

6.02

(1)Yes. Reproduces by seed. Seedlings successfululy established in sowing experiment.

(1)Slocum, M.G., T.M. Aide, Zimmerman, J.K. and L. Navarro. 2006. A Strategy for Restoration of Montane Forest in Anthropogenic Fern Thickets in the Dominican Republic. Restoration Ecology 14(4): 526–536

6.03

Unknown

6.04

(1)"Abstract: Although breeding system investigations were previously performed in only nine of the 100 Tabebuia species, indications of self-incompatibility have been found in all of them, and the four species studied for the site of incompatibility reaction showed some kind of late-acting elf-incompatibility. Polyembryony has been found in T. chrysotricha and T. ochracea, with adventitious origin of the extra embryos being shown in the latter. We investigated the breeding system in five species of Tabebuia by hand-pollination experiments, fluorescence microscopy study of in situ pollen tube growth, and histological analysis of postpollination events. Although both T. chrysotricha and T. heptaphylla developed fruits by selfpollination, polyembryony was verified only in the former, which indicates that self-fertility in Tabebuia is not necessarily associated with apomixis. The remaining species were 100% self-sterile. Although some penetrated ovules in crossed pistils of T. vellosoi were found at the 48-h interval, none of the ovules in selfed pistil was penetrated at the same interval, with penetration of many ovules occurring 72 h postpollination. In T. impetiginosa, ovule penetration efficiency 48 h after pollination was higher in cross- than in self-pollinated pistils, and the majority of the ovules in selfed pistils were penetrated and fertilized in 72 h. The incidences of ovule fertilization and endosperm initiation were significantly slower in selfed compared with crossed pistils, and a clear developmental slowdown of the endosperm occurred in selfed pistils before abscission, although no other signs of developmental malfunctions were detected. In all of the self-sterile species, abortion of selfed pistils occurred in a small period after pollination, and no swelling of the ovary was observed in T. umbellata. All of these results agree with the occurrence of late-acting self-incompatibility in T. impetiginosa, T. umbellata, and T. vellosoi, and no evidence was found that self-sterility in these species is due to inbreeding depression."

(1)Bittencourt Jr., N.S. and J. Semir. 2005. Late-Acting Self-Incompatibility and Other Breeding Systems in Tabebuia (Bignoniaceae). International Journal of Plant Science 166(3): 493-506

6.05

(1)Unlikely, as the flowers are showy. "Tree 5 m tall in full sun. The flowers are white with a tinge of rose pink. No fragrance (in the morning). "

(1)National Tropical Botanical Garden Website. Note Ref: Accessed 2008. http://ntbg.org/

6.06

No evidence

 

6.07

(1)A late succesional tree species that was among the slower growing tree species after 3 years of monitoring (>1 m in height)

(1)Slocum, M.G., T.M. Aide, Zimmerman, J.K. and L. Navarro. 2006. A Strategy for Restoration of Montane Forest in Anthropogenic Fern Thickets in the Dominican Republic. Restoration Ecology 14(4): 526–536

7.01

(1)Unlikely, as seeds have no means of attachment and are fairly conspicuous (large). "Fruit linear-cylindric, longitudinally striate-costate, drying blackish, with a roughish-looking surface, 7-16(-20) cm long, 6-8 mm wide, lepidote with blackish scales, the calyx persistent; seeds thin, bialate, 4-7 mm long, 15-20 mm wide, the hyaline membranaceous wings distinctly demarcated from seed body."

(1)Gentry, A.H. 1992. Bignoniaceae-Part II (Tribe Tecomeae). Flora Neotropica Monograph 25 (II): 147-148

7.02

(1)Distributed for landscaping purposes. See following description of an unidentified Tabebuia species highlighting its aesthetic qualities "The large pale pink or yellow flowers appear in small clusters … flowering very abundantly while bare of leaves and quite magnificent in appearance."

(1)Holttum, R.E. and I. Enoch. 1991. Gardening in the tropics. Times Editions Pte Ltd. Times Centre, Singapore. 384 pages

7.03

(1)No. Plants not necessarily in proximity to produce, and seeds are conspicuous: "Fruit linear-cylindric, longitudinally striatecostate, drying blackish, with a roughish-looking surface, 7-16(-20) cm long, 6-8 mm wide, lepidote with blackish scales, the calyx persistent; seeds thin, bialate, 4-7 mm long, 15-20 mm wide, the hyaline membranaceous wings distinctly demarcated from seed body."

(1)Gentry, A.H. 1992. Bignoniaceae-Part II (Tribe Tecomeae). Flora Neotropica Monograph 25 (II): 147-148

7.04

(1)"Fruit linear-cylindric, longitudinally striate-costate, drying blackish, with a roughish-looking surface, 7-16(-20) cm long, 6-8 mm wide, lepidote with blackish scales, the calyx persistent; seeds thin, bialate, 4-7 mm long, 15-20 mm wide, the hyaline membranaceous wings distinctly demarcated from seed body." (2)"Fruit an elongate linear to cylindric capsule, smooth to costate striate, minutely to densely lepidote. Seeds thin, bialate;wings hyaline membranacous and sharply demarcated from seed body."

(1)Gentry, A.H. 1992. Bignoniaceae-Part II (Tribe Tecomeae). Flora Neotropica Monograph 25 (II): 147-148 (2)Grose, S.O. and R.G. Olmstead. 2007. Taxonomic Revisions in the Polyphyletic Genus Tabebuia s.l. (Bignoniaceae). Systematic Botany 32(3): 660–670

7.05

(1)Unlikely, as seeds are winged and not buoyant

(1)Gentry, A.H. 1992. Bignoniaceae-Part II (Tribe Tecomeae). Flora Neotropica Monograph 25 (II): 147-148

7.06

(1)No. Fruits are winged, not fleshy see description: "Fruit linear-cylindric, longitudinally striate-costate, drying blackish, with a roughish-looking surface, 7-16(-20) cm long, 6-8 mm wide, lepidote with blackish scales, the calyx persistent; seeds thin, bialate, 4-7 mm long, 15-20 mm wide, the hyaline membranaceous wings distinctly demarcated from seed body."

(1)Gentry, A.H. 1992. Bignoniaceae-Part II (Tribe Tecomeae). Flora Neotropica Monograph 25 (II): 147-148

7.07

(1)No. Seeds have no means of attachment: "Fruit linear-cylindric, longitudinally striate-costate, drying blackish, with a roughish-looking surface, 7-16(-20) cm long, 6-8 mm wide, lepidote with blackish scales, the calyx persistent; seeds thin, bialate, 4-7 mm long, 15-20 mm wide, the hyaline membranaceous wings distinctly demarcated from seed body."

(1)Gentry, A.H. 1992. Bignoniaceae-Part II (Tribe Tecomeae). Flora Neotropica Monograph 25 (II): 147-148

7.08

(1)Possibly. Listed in a table of species that have an "animal dispersal syndrome"

(1)Slocum, M.G., T.M. Aide, Zimmerman, J.K. and L. Navarro. 2006. A Strategy for Restoration of Montane Forest in Anthropogenic Fern Thickets in the Dominican Republic. Restoration Ecology 14(4): 526–536

8.01

Probably not - winged seeds makes it relatively big in size.

 

8.02

Unknown

8.03

Unknown

8.04

(1)"moderately wind and drought tolerant"

(1)Rauch, F.D. and P.R. Weissich. 2000. Plants for Tropical Landscapes: A Gardener's Guide. University of Hawaii Press

8.05

Unknown


Need more info? Have questions? Comments? Information to contribute? Contact PIER!


[ Return to PIER homepage ] [Risk assessment page]


This page created 26 November 2008