North America Non-native Plant

Lotus Conjugatus Requienii

Botanical name: Lotus conjugatus requienii

USDA symbol: LOCOR2

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

Synonyms: Tetragonolobus requienii (Mauri ex Sanguin.) Sanguin. (TERE7)   

Lotus conjugatus requienii: A Mysterious Member of the Pea Family If you’ve stumbled across the name Lotus conjugatus requienii in your botanical adventures, you’re not alone in wondering what exactly this plant is all about. This member of the legume family is quite the enigma in the gardening world, with ...

Lotus conjugatus requienii: A Mysterious Member of the Pea Family

If you’ve stumbled across the name Lotus conjugatus requienii in your botanical adventures, you’re not alone in wondering what exactly this plant is all about. This member of the legume family is quite the enigma in the gardening world, with limited information available even to seasoned horticulturists.

What We Know (And Don’t Know)

Lotus conjugatus requienii belongs to the Lotus genus, which is part of the pea family (Fabaceae). You might also see it referenced by its synonym, Tetragonolobus requienii. Beyond this basic taxonomic information, details about this particular species are surprisingly scarce in readily available horticultural literature.

The lack of a widely recognized common name hints at just how uncommon this plant is in cultivation. While many Lotus species have earned friendly nicknames like bird’s-foot trefoil or bacon and eggs, our mysterious L. conjugatus requienii seems to have flown under the radar.

Geographic Distribution

The geographic range and native status of Lotus conjugatus requienii remain unclear from available sources. This makes it challenging to determine where gardeners might successfully cultivate this species or whether it would be appropriate for native plant gardens.

Should You Grow It?

Here’s where things get tricky. With limited information about this plant’s characteristics, growing requirements, and ecological impact, it’s difficult to make a solid recommendation either way. We don’t know if it’s invasive, rare, or simply uncommon in cultivation.

For gardeners interested in Lotus species, there are several well-documented alternatives that might scratch the same botanical itch:

  • Lotus corniculatus (Bird’s-foot trefoil) – widely available and well-studied
  • Lotus creticus – attractive Mediterranean species with silver foliage
  • Lotus berthelotii – popular trailing variety with striking red flowers

The Bottom Line

Sometimes in the plant world, we encounter species that remain tantalizingly mysterious. Lotus conjugatus requienii appears to be one of those plants – scientifically documented but practically invisible in modern horticulture.

If you’re specifically seeking this plant for research purposes or have encountered it in specialized botanical literature, your best bet would be to contact botanical gardens, university herbaria, or specialized legume collections. They might have more detailed information about its cultivation requirements and availability.

For most home gardeners, exploring the many well-documented and readily available Lotus species will likely prove more rewarding than chasing this particular botanical ghost. After all, there are plenty of fascinating legumes out there with proven garden performance and clear growing guidelines!

Lotus Conjugatus Requienii

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Lotus L. - trefoil

Species

Lotus conjugatus L.

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