Posoqueria longiflora

Posoqueria longiflora
Least Concern
Least Concern (IUCN 3.1)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Genus: Posoqueria
Species:
P. longiflora
Binomial name
Posoqueria longiflora
Synonyms
  • Kyrtanthus longiflorus (Aubl.) J.F.Gmel.
  • Solena longiflora (Aubl.) Willd.
  • Tocoyena undulatifolia A.Rich.
  • Posoqueria acuminata Mart.
  • Willdenovia schreberi J.F.Gmel.

Posoqueria longiflora, also known as needle flower tree or needle flower is a species of shrub or tree in the family Rubiaceae native to subtropical or tropical moist lowland forest of Northern South America.

Description

Detail of Posoqueria longiflora flower

Vegetative characteristics

Posoqueria longiflora is a 2–5 m tall shrub or tree bearing lanceolate, acuminate leaves with a wavy leaf margin.

Generative characteristics

The pendent, elegant, terminal inflorescences bear fragrant, nectariferous, sphingophilous, tubular, pure white, flowers 28–35 cm (rarely to 38 cm) long, while not over 2 mm diameter. The five petals are reflexed. The yellow or orange fruit has five linear, pointed, leathery, persistent sepals.

Taxonomy

It was described by Jean Baptiste Christophore Fusée Aublet in 1775. It is the type species of its genus.

Etymology

The specific epithet longiflora means having long flowers.

Ecology

Pollination

It is pollinated by a sphinx moth. When a sphinx moth inserts its proboscis into the flower, it touches a trigger mechanism which causes the four lateral stamens (two pairs) to move away from the center, while the middle stamen lunges forward like a catapult coating the lower surface of the moth with pollen[failed verification] to pollinate the stigma of the next flower visited. The role of the lateral stamens remains unclear.

Herbivory

The fruit is eaten by fish.

Use

The fruit is edible and sweet. It is used as bait for fishing.

References

  1. 1 2 Botanic Gardens Conservation International (BGCI) & IUCN SSC Global Tree Specialist Group. (2019). "Posoqueria longiflora". IUCN Red List of Threatened Species. 2019 e.T145687690A145687692. doi:10.2305/IUCN.UK.2019-2.RLTS.T145687690A145687692.en. Retrieved 11 March 2025.
  2. 1 2 "Posoqueria longiflora Aubl". Plants of the World Online. Royal Botanic Gardens, Kew. 2025. Retrieved 11 March 2025.
  3. ↑ Posoqueria longiflora. (n.d.). University of Connecticut. Retrieved September 13, 2025, from https://bcmapp.dev.i3.uconn.edu/plants/info/201100206
  4. 1 2 3 4 5 6 Botanic Gardens of Sydney. (2023, November 30). Must see December. Sydney.
  5. ↑ Posoqueria longiflora. (n.d.-b). PlantThis. Retrieved September 13, 2025, from http://www.plantthis.com.au/plant-information.asp?gardener=27331
  6. 1 2 Gomes, M. & Jardim Botânico do Rio de Janeiro. (n.d.). Posoqueria longiflora Aubl. Flora E Funga Do Brasil. Retrieved September 13, 2025, from https://floradobrasil.jbrj.gov.br/FB24531
  7. 1 2 3 Büttner, R. (2001). Mansfeld's Encyclopedia of Agricultural and Horticultural Crops: (Except Ornamentals). pp. 1775–1776  Germany: Springer.
  8. 1 2 3 4 Posoqueria longiflora. (n.d.). Flore De Guyane. Retrieved September 13, 2025, from https://floredeguyane.piwigo.com/index?/category/2261-iposoqueria_longiflora_i
  9. 1 2 3 4 5 6 La plante du mois Posoqueria longiflora. (2024, April 15). Réserve Naturelle Régionale Trésor. Retrieved September 13, 2025, from https://www.reserve-tresor.fr/la-plante-du-mois-30/
  10. ↑ Delprete, Piero G. (2009-03-23). "Taxonomic History, Morphology, and Reproductive Biology of the Tribe Posoquerieae (Rubiaceae, Ixoroideae) 1". Annals of the Missouri Botanical Garden. 96 (1): 79–89. doi:10.3417/2006192. ISSN 0026-6493. Retrieved 2025-08-22.
  11. ↑ Fayaz, Ahmed (2011). Encyclopedia of Tropical Plants. Buffalo, N.Y.: Firefly Books. p. 580.
  12. ↑ Flörke, H. G., Korth, J. W. D., Hoffmann, C. O., Kossarski, L. (1810). Oekonomische Encyklopädie, oder, Allgemeines System der Staats-, Stadt-, Haus- und Landwirthschaft: in alphabetischer Ordnung. p. 651. Germany: J. Pauli.
  13. ↑ The William & Lynda Steere Herbarium. (2019, January 24). Specimen Details - Posoqueria longiflora Aubl. Retrieved September 13, 2025, from https://sweetgum.nybg.org/science/vh/specimen-details/?irn=2512306
  14. ↑ Aublet, Fusée. (1775). Histoire des plantes de la Guiane Françoise : rangées suivant la méthode sexuelle, avec plusieurs mémoires sur différens objects intéressans, relatifs à la culture & au commerce de la Guiane Françoise, & une notice des plantes de l'Isle-de-France ... (Vol. 1, p. 134). P. F. Didot jeune. https://www.biodiversitylibrary.org/page/362110
  15. ↑ Wallace, B. (2001). Understanding the system of botanical plant names. Australian Plants Online. Retrieved September 13, 2025, from https://anpsa.org.au/APOL27/sep02-4.html
  16. ↑ Kainulainen, Kent; Razafimandimbison, Sylvain (October 2013). "Phylogenetic relationships and new tribal delimitations in subfamily Ixoroideae (Rubiaceae)". Bot. J. Linn. Soc. 173 (3): 387–406. doi:10.1111/boj.12038.
  17. ↑ Lehmann, K. G. (1854). Handbuch der physiologischen Chemie. p. 130. Germany: W. Engelmann.