Nature Lab/Specimen Collection/Gumbo Limbo
Sp. #02 of 16
SAFE
Botanical Specimen Record
Bursera simaruba

Gumbo Limbo

SAFE
Safety Note

Nontoxic. The resin has been used medicinally for centuries. Bark is safe to touch.

Identification Features
●Bright red-copper peeling bark — unmistakable once you know it
●Bark peels in thin papery sheets like sunburned skin
●Smooth, copper-green wood underneath the peeling bark
●Can grow from cuttings — stick a branch in the ground and it roots
●Extremely hurricane-resistant (drops leaves to reduce wind resistance, then regrows)
●Native to South Florida — one of the original tropical hardwood hammock species
●Fast-growing — can add 3+ feet per year
Collected Specimens — What Falls
🍃Thin sheets of papery bark (year-round)
🍃Small dark purple berries (spring/summer, loved by birds)
🍃Compound leaves with small leaflets
Field Observations

Known as the 'tourist tree' because its red, peeling bark looks like a sunburned tourist. One of South Florida's most distinctive native trees. The bark peels in thin, papery sheets revealing smooth copper-green wood underneath. Incredibly resilient — you can literally cut a branch, stick it in the ground, and it will grow into a new tree.

— field notes, Miami Beach

Location Index

Where to Find It

Miami Beach Botanical Garden, Lummus Park (scattered), North Shore Open Space Park. Also abundant in hammocks on the mainland (Matheson Hammock, Deering Estate).

Ecological Survey

Ecological Role

A keystone species of the tropical hardwood hammock. The berries are a critical food source for migratory birds. The resin was used by indigenous peoples as glue, incense, and medicine. Hurricane-resistant structure makes it a resilient canopy tree.

Fun Fact

Gumbo limbo trees are used as living fence posts in Central America. Farmers cut branches, stick them in the ground as fence posts, and they grow into full trees. This is called 'vegetative propagation' and it's one of the oldest farming techniques in the Americas.

Field Activities

3 cards
Activity #1

Bark Paper Collection

All ages10-15 minutesMess: None

Collect naturally peeling bark sheets from the ground around gumbo limbo trees. The thin, translucent bark sheets look like natural parchment and can be used for writing, art, or nature journals.

Materials Required

Fallen bark sheets (collect from ground only — never peel from the tree)

Procedure
  1. 1.Find a gumbo limbo tree (look for the telltale red peeling bark)
  2. 2.Collect bark sheets from the ground around the base
  3. 3.Hold a thin piece up to the light — notice the translucency
  4. 4.Use as natural 'paper' to write a nature note or draw
  5. 5.Discuss: why does bark peel? (The tree grows faster than its bark, so the outer layer splits and peels away)
Learning Outcome: How bark grows (cambium layer). Why some trees peel and others crack. Tree growth rings and diameter expansion.
Activity #2

The Stick-in-the-Ground Experiment

All ages15 min setup, then weekly check-insMess: Low

Demonstrate the gumbo limbo's incredible ability to grow from cuttings. Take a fallen branch, plant it, and check back weekly to watch it root and leaf out.

Materials Required

A fallen gumbo limbo branch (8-12 inches, thumb-thickness), a pot or patch of soil

Procedure
  1. 1.Find a healthy fallen branch (green inside when you scratch the surface gently)
  2. 2.Push it 3-4 inches into moist soil
  3. 3.Water it lightly
  4. 4.Mark the date — check weekly for new leaf buds
  5. 5.Discuss: most trees can't do this. Gumbo limbos are one of the few that reproduce by 'vegetative propagation'
  6. 6.This same technique has been used by farmers in Central America for centuries as living fence posts
Learning Outcome: Vegetative propagation vs. seed reproduction. Meristem cells. How indigenous farming techniques use natural plant abilities.
Activity #3

Tourist Tree Storytelling

All ages10-15 minutesMess: None

Why is it called the 'tourist tree'? Use the tree as a prompt for creative storytelling about sunburned tourists and resilient native trees.

Materials Required

Just the tree itself and imagination

Procedure
  1. 1.Stand at a gumbo limbo tree and observe the peeling red bark
  2. 2.Ask: why might this be called the 'tourist tree'?
  3. 3.Feel the smooth green wood under the peeling bark (like new skin under a sunburn)
  4. 4.Each person invents a short story about how the tree got its sunburn
  5. 5.Discuss the real reason: it's a joke that stuck — the red peeling bark really does look like tourist sunburn
  6. 6.Bonus: the tree is NATIVE and has been here for millions of years. The tourists, not so much.
Learning Outcome: Creative expression. Native vs. non-native species concepts. Observation skills — using humor to remember tree identification.
All Specimens

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