Phenology Walk – Carib Wood
Phenological Markers
Poitea carinalis
Overview
Poitea is generally pronounced poy-TEE-uh (/pɔɪˈtiːə/) or sometimes poy-TAY-uh. It originates from the name of French botanist Pierre Antoine Poiteau.
Poitea carinalis is a small Caribbean tree in the legume family (Fabaceae), native to the West Indies. It typically grows as a small tree or large shrub and is recognizable by its compound leaves and clusters of vivid pink to reddish pea-like flowers.
Because the species can remain visually quiet for long periods before suddenly flowering, it can be an excellent subject for phenological observation in tropical gardens.
Leaf Flush
New growth typically appears at the tips of branches as lighter green leaflets, often softer and more translucent than mature foliage.
Markers to observe:
- emergence of fresh compound leaves
- lighter green coloration compared with mature foliage
- rapid elongation of new shoots
Leaf production may occur intermittently throughout the year depending on rainfall patterns.
Flower Bud Formation
Flower buds develop along stems in small clusters before opening.
Markers to observe:
- small rounded buds forming along branch tips
- clusters becoming visible before opening
- buds deepening in color prior to flowering
This stage may last several days before the flowers open.
Flowering
Flowering is one of the most visually distinctive stages.
Flowers are pink to reddish, pea-like, typical of many legumes.
Markers to observe:
- clusters of open flowers along branch tips
- strong contrast between flowers and green foliage
- attraction of pollinators such as bees
Flowering may occur episodically rather than continuously.
Fruit Development
Following flowering, seed pods develop.
Markers to observe:
- elongated pods forming where flowers were present
- pods initially green and soft
- gradual enlargement and maturation
Pods eventually dry and split to release seeds.
Seed Dispersal
Mature pods dry and split open.
Markers to observe:
- pods turning brown
- splitting along seams
- seeds released or fallen beneath the tree
Seasonal Observation Notes
Because Poitea carinalis may appear relatively unchanged for long periods, flowering events can be sudden and brief. Regular observation is helpful for documenting the transition from vegetative growth to reproductive stages.
Photographic documentation during flowering and pod development provides especially useful phenological records.