Exostema lancifolium

Exostema lancifolium
Preserved specimen of Exostema lancifolium, consisting of stems with thin, slightly curved green and brown leaves
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Genus: Exostema
Species:
E. lancifolium
Binomial name
Exostema lancifolium
Varieties[2]
  • Exostema lancifolium var. lancifolium
  • Exostema lancifolium var. lucidum (Borhidi & M.Fernández) Borhidi

Exostema lancifolium is a species of flowering plant in the family Rubiaceae. It is a shrub or tree native to Cuba. The species was described in 1972, and is listed as Endangered by the IUCN.

Taxonomy

The species was described by Attila Borhidi and Julián Acuña Galé in 1972.[3]

Two varieties are accepted:[2]

  • Exostema lancifolium var. lancifolium - Native to Eastern Cuba[4]
  • Exostema lancifolium var. lucidum (Borhidi & M.Fernández) Borhidi - Native to Sierra de Moa[5]

Distribution

Exostema lancifolium is native to the wet tropical biome of Eastern Cuba.[2] It grows in forests and shrublands, at elevations of 100–450 metres (330–1,480 ft).[1]

Description

Exostema lancifolium is a shrub or tree.[2]

Conservation

In 2023, the IUCN assessed Exostema lancifolium as Endangered. There are around 199 mature individuals.[1]

References

  1. 1 2 3 Gómez Hechavarría, J.L.; González Gutiérrez, P.; Leyva, O.; Carmenate, W. (2025). "Exostema lancifolium". IUCN Red List of Threatened Species (in Spanish). 2025 e.T240916252A240916999. doi:10.2305/IUCN.UK.2025-1.RLTS.T240916252A240916999.es. Retrieved 2026-07-22.
  2. 1 2 3 4 "Exostema lancifolium". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2026-07-22.
  3. ↑ "Exostema lancifolium Borhidi & Acuña". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens.
  4. ↑ "Exostema lancifolium var. lancifolium". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2026-07-22.
  5. ↑ "Exostema lancifolium var. lucidum". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2026-07-22.
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