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Insider Tour – IUCN Listed Species

One of Peckerwood’s primary missions is to serve as a habitat for plants which are in serious decline in their native regions. Additionally, our goal is to propagate these plants and extend them into the hands of other botanical gardens and those of ordinary gardeners. For example, Glyptostrobus pensilis, one of the newest additions to the garden, is a critically endangered tree native to China and Vietnam whose population consists of less than 250 mature trees. Another example, is Agave nickelsiae which suffers from a host of threats in Mexico and which enjoys no protected range. During this insider tour, we will explore just a few of the approximately seventy species which are protected at Peckerwood Garden. This tour will extensively cite the IUCN (International Union of Conservationists of Nature):


  • NE Not evaluated
  • DD Data Deficient
  • LC Least Concern
  • NT Near Threatened
  • VU Vulnerable
  • EN Endangered
  • CR Critically Endangered
  • Extinct in the Wild
  • EX Extinct

The Threats

Such as logging and collection

Threat Prevention Actions

In-place research and monitoring Action Recovery Plan
Systematic monitoring scheme
In-place land/water protection Conservation sites identified
Area based regional management plan
Occurs in at least one protected area
Invasive species control or prevention
In-place species management Harvest management plan
Successfully reintroduced or introduced benignly
Subject to ex-situ conservation

EN Magnolia tamaulipana – Mexico. Farming, development. Small number of locations. “There are no conservation actions in place for Magnolia tamaulipana. It is not cultivated in Mexico but exists in one ex situ collection.”
VU Cupressus chengiana – Two provinces in China. Logging. Ex situ. Few efforts.
NT Platycladus orientalis ‘Blue Cone’ – Native to northwestern CHina threatened by logging. No significant conservation efforts there but it has naturalized in many other places and cultivated around the world.
VU Sabal uresana – Foothills of the Sierra Madre Occidental in northwestern Mexico. Habitat loss, logging. No efforts.
CR Parodia herteri – (Brazil) Current effort: Protected area, international controls. Threat: logging, farming, collection
VU Echinopsis terscheckii – Argentina, Bolivia, Ecuador. Collection. Protected, controls.
CR Agave nickelsiae – No current efforts. Threat: collection, roads, development.
EN Ferocactus haematacanthus – (Mexico/Texas. 2400) Current effort: ex situ, protection, controls. Threat: non-timber (candy)
EN Sabal bermudana – (Bermuda) Development. Invasive species competition such as with Chinese fan palm.
NT Dioon edule – 141,000 Mexico. Collection, development. Protection, controls.
NT Zamia floridana (Integrifolia) – 30,000 mature. Florida. Development, collection. Ex situ, protected, controls.
CR Zamia vasquezii – (Mexico, ~50 mature) Current effort: International controls. Threat: logging, collection
EN Cycas taitungensis – Eastern Taiwan. Collection, invasive species: Aulacaspis scale.
VU Neobuxbaumia polylopha – Central Mexico. Development and recreation. Protected, controls.
EN Echinocactus grusonii – (central Mexico. 11,000) Current effort: ex situ, international controls. Threat: collection, dam.
VU Sinojackia xylocarpa – Jiangsu province, China. Habitat loss, logging, firewood. No conservation.
VU Cycas panzhihuaensis – Dry-hot valley of the Jinsha River basin in Sichuan and Yunnan provinces in southwest China. Mining, logging, collection, fragile ecosystem. Protected, controls, ex situ.
EN Ceratozamia hildae – 500-1000 mature in the wild Mexico. Entire range protected. “native to the Huasteca Potosina of Querétaro and San Luis Potosí”
EN Taxus wallichiana – Current effort: protected, ex situ, trade controls, recovery plan. Threat: non-timber related, logging, firewood, drug precursor.
CR Ceratozamia kuesteriana – (Mexico, ~300 mature) Current effort: protected over entire range. Threat: collection.
CR Torreya taxifolia – (Florida. 999 mature). Current effort: monitoring, protection, ex situ, education. Threat: invasive species
VU Magnolia cylindrica China. Logging and collection. Ex situ.
VU Podocarpus matudae – 11-12 locations in Mexico and Central America. Logging.
VU Ceratozamia microstrobila – 5000-15000 in Sierra Madre Oriental of San Luis Potosí State, and the very southern portion of Tamaulipas, Mexico. Habitat loss. No efforts.
CR Acer skutchii – Current effort: ex situ, protected area. Threat: farming, logging, fire suppression, climate change.
EN Magnolia lotungensis 2499. China. Logging and nontimber crops. Ex situ.
CR Glyptostrobus pensilis – (China/Vietname. Swampy lowlands. 25 m. ) Current effort: ex situ only. Threat: logging, dams, firewood. 100-250 remain.
CR Araucaria angustifolia – Current effort: ex-situ, protected area, harvest management. Threat: farming, logging, collecting
EN Keteleeria davidiana var. formosana – Few locations in northwest Taiwan. Farming, development, poor regeneration possibly cause by researcher collection
Physostegia correllii – Not listed in IUCN. Known to only a few sites in Travis Co, Texas and Louisiana. Native also to Mexico.