Rat Wood

Scientific name: Erythroxylum rotundifolium

IUCN Red List threat level: Least Concern

GPS Location: 17° 43′ 0.42″ N, 64° 49′ 49.82″ W

Observations:

Phenological Markers – Rat Wood (Erythroxylum rotundifolium)

Common Name: Rat Wood
Scientific Name: Erythroxylum rotundifolium L.
Family: Erythroxylaceae
Origin: Native to the Caribbean, including the Virgin Islands
Form: Shrub to small tree, typically 2–5 meters tall


Annual Phenological Cycle

PhenophaseTypical Timing (St. Croix – Lowland Tropical)Field Notes
Leaf FlushApril – JuneNew leaves emerge bright green and soft; often seen after early rains.
FloweringMay – AugustTiny white to greenish flowers; inconspicuous but fragrant.
Fruit DevelopmentJuly – OctoberSmall red drupes (resembling miniature cherries) mature through late summer.
Leaf Drop (Partial)January – March (dry season)May exhibit partial deciduousness under drought stress.
DormancyMarch – April (minimal visible growth)Growth slows prior to wet season onset.

Identification Notes

  • Leaves are distinctly round to oval and alternate, giving rise to the species name rotundifolium.
  • Bark is smooth to finely fissured and greyish-brown.
  • Fruits are attractive to birds and small mammals.
  • Tends to grow in dry forest margins, rocky slopes, and coastal scrub.
  • The name “Rat Wood” may refer to its dense, twiggy growth and habitat in dry scrub where rodents are common.

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