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Florida Semaphore Cactus

Consolea millspaughii subsp. corallicola

Also called Semaphore Pricklypear

Florida Semaphore Cactus
Photo: Dsandii, CC BY-SA 4.0

A rare, critically endangered cactus native only to the Florida Keys, forming colonies of trunk-like stems up to 2.4 m tall. It is grown mainly by specialist collectors and conservation programs, and it needs good drainage and full sun.

Family
Cactaceae (Cactus family)
Grows as
Succulent
Light
Full sun
Water
Water deeply but infrequently, letting the soil dry out fully between waterings; reduce sharply in winter.
Soil
Fast-draining cactus or sandy mix.
Temperature
18–32 °C; protect below 10 °C
How easy
Moderate

About

Consolea corallicola is a species of cactus known by the common names Florida semaphore cactus and semaphore pricklypear. It is endemic to Florida in the United States, where it is limited to the Florida Keys.

Where it grows

It has been extirpated from several of the Keys, including Big Pine Key, the island where it was first discovered in 1919. Today there are two populations, one on Little Torch Key and one on Swan Key. There is also a patch of plants growing where several fragments were planted on North Key Largo. Because the plant is colonial, with what appear to be several plants actually being parts of one genetic individual, populations are very small, sometimes containing fewer than five true individuals. One population is composed of only male plants and cannot reproduce sexually. There are a total of under 20 distinct individuals living in the wild today. It is listed by the IUCN as "critically endangered."

Other Consolea plants

Tuna · Sour pricklypear · Consolea testudinis-crus · Consolea

Text excerpted from the Wikipedia article Consolea corallicola by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

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