North America Non-native Plant

Tropical Desert-thorn

Botanical name: Lycium tweedianum var. tweedianum

USDA symbol: LYTWT2

Native status: Not native but doesn't reproduce and persist in the wild

Tropical Desert-Thorn: A Mysterious Native Worth Investigating Meet Lycium tweedianum var. tweedianum, commonly known as tropical desert-thorn – a plant that’s playing hard to get in the gardening world. If you’re the type of gardener who loves a good mystery and doesn’t mind a challenge, this little-known native might just ...

Tropical Desert-Thorn: A Mysterious Native Worth Investigating

Meet Lycium tweedianum var. tweedianum, commonly known as tropical desert-thorn – a plant that’s playing hard to get in the gardening world. If you’re the type of gardener who loves a good mystery and doesn’t mind a challenge, this little-known native might just pique your interest.

What We Know (And What We Don’t)

Here’s the thing about tropical desert-thorn: it’s something of an enigma in the native plant world. While we know it belongs to the Lycium genus – a group of plants known for their thorny branches and small berries – specific information about this particular variety is surprisingly scarce. This could mean it’s either quite rare, very regionally specific, or simply hasn’t been extensively studied yet.

Native Status and Geographic Distribution

The available data suggests tropical desert-thorn is native to North America, likely found in southwestern regions based on its genus characteristics. However, its exact geographic distribution remains unclear, which adds to its mystique.

Should You Grow Tropical Desert-Thorn?

This is where things get interesting – and a bit tricky. Without clear information about its growth habits, care requirements, or potential invasiveness, it’s difficult to give definitive growing advice. Here’s what we recommend:

  • If you encounter this plant in the wild or through a reputable native plant supplier, proceed with caution and curiosity
  • Since information is limited, it may be rare – always ensure any plant material is ethically and responsibly sourced
  • Consider it an experimental addition rather than a cornerstone of your garden design

Growing Considerations

Without specific growing requirements available, your best bet is to:

  • Observe its natural habitat if you find it growing wild
  • Consult with local native plant societies or botanical gardens
  • Start small with any specimens you acquire
  • Document your growing experience – you might be contributing valuable knowledge!

Alternative Options

If tropical desert-thorn proves too elusive or challenging, consider these better-documented native alternatives from the same genus:

  • Lycium pallidum (pale desert-thorn)
  • Lycium andersonii (Anderson’s desert-thorn)
  • Other regional Lycium species with established growing information

The Bottom Line

Tropical desert-thorn represents one of those fascinating gaps in our gardening knowledge. While we can’t provide a complete growing guide due to limited available information, that doesn’t make it any less intriguing. If you’re an adventurous gardener who enjoys being part of the discovery process, this mysterious native might be worth investigating – just remember to source responsibly and keep detailed records of your experience. Who knows? You might become one of the first to document how to successfully grow this elusive beauty.

Tropical Desert-thorn

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Solanales

Family

Solanaceae Juss. - Potato family

Genus

Lycium L. - desert-thorn

Species

Lycium tweedianum Griseb. - tropical desert-thorn

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA