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As Seen on CPC’s Rare Plant Academy: Florida’s Key Tree Cacti (Pilosocereus robinii and Pilosocereus millspaughii): Charismatic Megaflora at the Forefront of Sea Level Rise

Dense stands of columnar ‘tree cacti’ similar to those in the Greater Antilles were once found in the Florida Keys, but harvesting, habitat loss, damage from mammals, climate change, and sea level rise led to a population crash that landed the cactus on the US endangered species list in 1984. In this Rare Plant Academy video recorded at the 2022 CPC National Meeting, Jennifer Possley presents the efforts of  Fairchild Tropical Botanic Garden (FTBG) to conserve the Key tree cacti of the Florida keys. Since the mid-2000s, the conservation team at FTBG has worked hard to recover, restore, and secure ex situ material of these populations. Their work has included the establishment of a Key Tree Cactus Preserve; annual, range-wide population monitoring; in situ ecological studies; an ex situ salinity study; development of horticultural methods; seed banking; plant rescues; genetic research; and several experimental reintroductions to relatively higher-elevation sites throughout the species’ natural range.

Watch this video—and check out the “climate change” tag on the Rare Plant Academy Video Library to watch many more videos and presentations focused on climate change and conservation!

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The Center For Plant Conservation (CPC) is a 501 (c) (3) non-profit organization (EIN# 22-2527116) dedicated to saving rare plant species from extinction. CPC's National Collection represents more than 2,000 of the world's rarest plants, maintained collectively by its valued network of Participating Institutions.

Center for Plant Conservation National Headquarters 15600 San Pasqual Valley Rd. Escondido, CA 92027-7000

Email: info@saveplants.org; Phone: (760) 796-5686

The CPC National Office is headquartered at the San Diego Zoo Safari Park in Escondidio, California, in partnership with the San Diego Zoo Wildlife Alliance, a CPC Participating Institution.

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