North America Non-native Plant

Vicia Sessiliflora

Botanical name: Vicia sessiliflora

USDA symbol: VISE11

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

Vicia sessiliflora: The Mystery Vetch That’s Hard to Pin Down If you’ve stumbled across the name Vicia sessiliflora in your native plant research, you’ve encountered one of gardening’s little mysteries. This member of the vetch family (which belongs to the legume group) is so obscure that even dedicated botanists scratch ...

Vicia sessiliflora: The Mystery Vetch That’s Hard to Pin Down

If you’ve stumbled across the name Vicia sessiliflora in your native plant research, you’ve encountered one of gardening’s little mysteries. This member of the vetch family (which belongs to the legume group) is so obscure that even dedicated botanists scratch their heads when trying to pin down reliable information about it.

What We Know (And What We Don’t)

Here’s the honest truth: Vicia sessiliflora is one of those plants that exists more in name than in well-documented reality. While the genus Vicia includes many wonderful native legumes that provide nitrogen-fixing benefits and support pollinators, this particular species doesn’t appear in most major botanical databases or native plant guides with enough detail to give you confidence about growing it.

The lack of a commonly recognized common name is actually your first clue that this isn’t a plant you’re likely to find at your local nursery or even specialized native plant sales.

The Problem with Plant Mysteries

When you can’t find reliable information about a plant’s:

  • Native range and status
  • Growing requirements
  • Mature size and growth habits
  • Potential invasiveness
  • Ecological benefits

You’re essentially gardening blind, which isn’t ideal for anyone trying to create a successful native landscape.

Better Alternatives in the Vetch Family

Instead of puzzling over Vicia sessiliflora, consider these well-documented native vetch species that will give you all the legume benefits you’re looking for:

  • American Vetch (Vicia americana) – A robust climbing vine with purple flowers
  • Wood Vetch (Vicia caroliniana) – Delicate white flowers perfect for woodland gardens
  • Narrow-leaved Vetch (Vicia sativa) – Though not native, it’s well-behaved and beneficial

The Smart Gardener’s Approach

When you encounter a plant with limited documentation like Vicia sessiliflora, the wisest approach is to:

  • Consult with local botanists or extension services
  • Check with native plant societies in your region
  • Consider well-documented alternatives that serve similar ecological functions
  • Avoid purchasing plants without verified identification and growing information

Focus on What Works

Your native garden will be most successful when you choose plants with proven track records and reliable growing information. While the mystery of Vicia sessiliflora might be intriguing, your pollinators, soil, and gardening success will benefit more from selecting vetches and other legumes with well-established reputations and clear cultivation guidance.

Remember, successful native gardening is about creating reliable habitat and beauty, not solving botanical puzzles. Save the detective work for plant identification walks, and stick with documented native species for your landscape projects.

Vicia Sessiliflora

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

Vicia L. - vetch

Species

Vicia sessiliflora Clos

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