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The Vegetation of Galapagos. Due to the
isolation, around 180-200 of Galapagos' native 500 plants are endemic.
These are the plants I hope to see and photo, but the other
half might be interesting too. I'll try to avoid the almost
900 invasive species, but errors may occur. The vegetation can be divided into groups after their island or after their habitat. There are roughly six different habitats on the islands. My extensive photo collection are found on this page. Coastal Zone: Also known as the The Littoral Zone. The sea borders are marked by salt water. Galapagos plants like the Red Mangrove; Rhizophora mangle (Isabela and Santa Cruz), and the Black Mangrove; Avicennia germinans, White Mangrove; Laguncularia racemosa and Button Mangrove or Buttonwood Conocarpus erecta. A little further inland Seaside hibiscus; Hibiscus tiliaceus and the little succulent; Sesuvium portulacastrum are found.![]()
On the beaches, the beautiful Beach
Morning Glory;
Ipomoea
pes-capae with its large pink flowers are found
along with Galapagos Beach Amaranthus; Amaranthus
sclerantoides, an annual plant, Beach Dropseed;
Sporobolus virginicus, Inkberry; Scaevola
pulmierii on the crest of the dunes, and Saltbush;
Cryptocarpus pyriformis behind the dunes. Arid Zone: Cacti and succulent dominates this zone between 60 and 300 meters. Tallest are the big and famous Opuntia Cactus with up to twelve meters. The genus Opuntia is represented in Galapagos by several species and endemic varieties - depending on who you talk to. They all seems to be subspecies of Opuntia echios aka Opuntia galapageia like Opuntia echios var. echios, Opuntia echios var. gigantea, Opuntia galapageia var. profusa and Opuntia echios var. barringtonensis. More in the sheet below. *The Opuntia have, as so many other cacti, been renamed several times:
Same goes for the Candelabra Cactus; Jasminocereus thouarsii:
Transition Zone: Here are a area with plants from both Arid a Scalesia Zone. Mainly small trees like the Bursera; Bursera graveolens and shrub like the Pega Pega Tree; Pisonia floribunda and the Guaybillo tree; Eugenia buxifolia? and The Galapagos Tomato; Lycopersicon cheesmanii. Now, the Guayabillo Tree; Pisidium galapagensis, and the Matazarno; Piscidia carthagenensis appears. This might be the place to look for Oxalis megalorrhiza? Scalesia Zone:
In the higher parts; 800 meters+, which are more moist, the Galapagos Tree Fern; Cyathea weatherbyana starts along with Bracken; Pteridium aquilinum var. arachnoideum and sedges like Cyperus anderssonii. The upper part is known as the The Brown Zone or Zanthoxylum Zone, due to the fact the mosses usually are brown here. Besides from that, it is pretty much the same plants. Dominating this zone is the Cat's Claw Zanthoxylum fagara, Tournefortia pubescens and the Galapagos Acnistus; Acnistus ellipticus. Miconia Zone:
Particular to San Cristobal and Santa Cruz
in 600-700 meter, this zone is nam Pampa Zone:
Above 900 meters, this area is also known as
the Fern-Sedge Zone. Here are no
trees, but the tall Galapagos Tree Fern;
Cyathea weatherbyana and Liverworts;
Hepatics
with 110 species and mosses and
lichens. In the populated Islands of
Galapagos, this is farmland, and dominated
by introduced pampas grass;
Cortaderia selloana. |