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Safety Overview
1.Lathyrus Latifolius — Essential Profile
Lathyrus latifolius, commonly known as Perennial Sweet Pea or Everlasting Pea, is a robust, herbaceous perennial climbing plant belonging to the Fabaceae family, native to Southern and Central Europe. This vigorous species is characterized by its broad, winged stems and distinctive pinnate leaves, each ending in a branched tendril that aids its ascent, allowing it to reach impressive heights of 6 to 9 feet (1.8 to 2.7 meters). Its striking floral display, appearing from summer through early autumn, consists of abundant clusters of pea-like flowers in shades ranging from vibrant pink and rose to white and magenta.
Unlike its aromatic annual counterpart, Lathyrus odoratus, L. latifolius is not fragrant. It is widely cultivated as an ornamental due to its hardiness and adaptability, thriving in various soil types and light conditions.
While beautiful, its rapid growth and ability to form dense thickets can lead to it being considered invasive in certain regions, often outcompeting native flora. Taxonomically, it is distinguished by its perennial growth habit and lack of scent, setting it apart within the diverse Lathyrus genus, which includes both edible and toxic species. Its natural habitat typically includes grasslands, open woodlands, and hedgerows.
Trusted Scientific References
1. Authoritative external sources for Lathyrus Latifolius
1.1 Wikipedia — Lathyrus Latifolius
1.2 Kew POWO (Plants of the World Online)
1.3 PubMed — peer-reviewed research
1.4 NCBI Taxonomy Browser
1.5 GBIF — Global Biodiversity
1.6Lathyrus Latifolius should be interpreted through verified botanical identity, practical care, and responsible safety language. This recovery note adds the missing context needed for a complete profile: match light to the plant's habit, use well-drained soil, water according to season, and avoid unsupported medicinal or edible claims. For publishing, the plant can be presented as a source-backed garden plant with clear care guidance, common problem diagnosis, and conservative safety wording.
1.1.Lathyrus Latifolius — Distinguishing Points
- ✓Common Name — Perennial Sweet Pea, Everlasting Pea.
- ✓Scientific Name — Lathyrus latifolius.
- ✓Family — Fabaceae (Leguminosae).
- ✓Growth Habit — Vigorous herbaceous perennial climber.
- ✓Flower Color — Pink, rose, white, magenta.
- ✓Scent — Not fragrant.
- ✓Key Toxins — Beta-aminopropionitrile (BAPN).
- ✓Toxicity — Highly toxic, especially seeds.
- ✓Primary Use — Ornamental gardening, erosion control.
- ✓Native Range — Southern and Central Europe.
1.2.Lathyrus Latifolius — Quick Summary
- ✓Perennial Sweet Pea is a toxic ornamental plant.
- ✓Contains neurotoxins, primarily beta-aminopropionitrile (BAPN).
- ✓Ingestion can cause Lathyrism, leading to paralysis and neurological damage.
- ✓Valued for its vigorous climbing habit and attractive, unscented flowers.
- ✓Primarily used in landscaping for aesthetic appeal and erosion control.
- ✓Strictly for external, ornamental use; not for medicinal or food purposes.
2.Lathyrus Latifolius — Nomenclature & Classification
3.Lathyrus Latifolius — Fact Sheet
4.Lathyrus Latifolius — Physical Description
5.Lathyrus Latifolius — Native Range & Habitat
6.Lathyrus Latifolius — Heritage Uses
7.Lathyrus Latifolius — Key Phytochemicals
- ✓Neurotoxic Amino Acids — Contains beta-aminopropionitrile (BAPN) and other neurotoxins, particularly concentrated in the seeds, which are responsible for Lathyrism.
- ✓Flavonoids — Presence of various flavonoid compounds in the aerial parts, contributing to flower pigmentation and potentially offering antioxidant properties if not for toxicity.
- ✓Phenolic Acids — Contains different phenolic acids, common plant secondary metabolites with potential antioxidant activity, but not enough to outweigh toxicity.
- ✓Saponins — Some Lathyrus species contain saponins, though their presence and specific type in L. latifolius require further detailed analysis.
- ✓Lectins — May contain lectins, which are carbohydrate-binding proteins, common in legumes and can be toxic if ingested.
- ✓Cyanogenic Glycosides — While less prominent than in other legumes, some Lathyrus species can contain cyanogenic glycosides, releasing hydrogen cyanide upon hydrolysis.
- ✓Alkaloids — Potential presence of trace amounts of alkaloids, which are nitrogen-containing organic compounds with diverse pharmacological activities.
- ✓Non-protein Amino Acids (other) — In addition to BAPN, other non-protein amino acids may be present, contributing to the plant's overall toxicity profile.
- ✓Carbohydrates — Standard plant carbohydrates like starches and sugars are present in various plant parts.
- ✓Proteins — Contains structural and enzymatic proteins essential for plant function, alongside the toxic non-protein amino acids.
8.Lathyrus Latifolius — Scientific Evidence
- ✓Ornamental Value — Primarily cultivated for aesthetic appeal in gardens and landscapes due to its vibrant flowers and climbing habit, enhancing biodiversity.
- ✓Soil Improvement — Like other legumes, Lathyrus latifolius can contribute to soil health by fixing atmospheric nitrogen through symbiotic bacteria in its root nodules.
- ✓Erosion Control — Its vigorous, spreading root system and dense growth make it effective in stabilizing soil and preventing erosion on slopes and embankments.
- ✓Habitat Provision — Provides cover and nesting sites for small wildlife and insects, contributing to local ecosystem diversity.
- ✓Pollinator Attraction — Its showy flowers attract various pollinators, including bees and butterflies, supporting local insect populations.
- ✓Green Manure — When incorporated into the soil, the plant biomass can enrich the soil with organic matter and nitrogen, improving fertility.
- ✓Phytoremediation Potential — Some Lathyrus species show potential in phytoremediation for certain heavy metals, though specific data for L. latifolius is limited.
- ✓Genetic Study — Serves as a subject for botanical and genetic research due to its hardiness and distinct morphological features within the Lathyrus genus.
- ✓Historical Use (Cautionary) — Historically, some Lathyrus species were used in folk medicine, but L. latifolius specifically is known for its toxicity, not therapeutic benefits.
- ✓Botanical Education — Valuable for educational purposes in demonstrating plant morphology, climbing mechanisms, and the diversity within the Fabaceae family.
8.1.Lathyrus Latifolius — Indications & Uses
9.Lathyrus Latifolius — Cautions & Contraindications
9.1.Lathyrus Latifolius — Reported Side Effects
- ✓Neurotoxicity — Ingestion of seeds and other plant parts can cause Lathyrism, a neurological disorder.
- ✓Paralysis — Severe cases of Lathyrism can lead to spastic paralysis and skeletal deformities, particularly in the legs.
- ✓Gastrointestinal Distress — Mild ingestion may cause nausea, vomiting, and abdominal pain.
- ✓Allergic Reactions — Contact with sap or pollen may cause skin irritation or allergic responses in sensitive individuals.
- ✓Bone Abnormalities — Chronic exposure to toxins can affect bone and cartilage development.
- ✓Reproductive Issues — Some studies suggest potential reproductive toxicity from neurotoxins in Lathyrus species.
- ✓Liver Damage — High doses of neurotoxins could potentially lead to liver dysfunction.
9.2.Lathyrus Latifolius — Risk Assessment
- ✓HIGH TOXICITY — Lathyrus latifolius, especially its seeds, is highly toxic due to neurotoxins like BAPN.
- ✓NOT FOR CONSUMPTION — Absolutely not suitable for human or animal consumption; avoid all internal use.
- ✓KEEP AWAY FROM CHILDREN/PETS — Ensure children and pets cannot access or ingest any part of the plant.
- ✓ORNAMENTAL ONLY — Cultivate strictly for ornamental purposes and garden aesthetics.
- ✓GLOVES RECOMMENDED — Wear gloves when handling to prevent potential skin irritation from sap.
- ✓AVOID CROSS-CONTAMINATION — Do not plant near edible legumes to prevent accidental ingestion or confusion.
- ✓CONSULT EXPERT — In case of accidental ingestion, seek immediate medical or veterinary attention.
10.Lathyrus Latifolius — Preparations & Uses
- ✓Ornamental Gardening — Primarily used as an attractive climbing plant for arbors, pergolas, fences, and as ground cover.
- ✓Landscape Design — Incorporated into cottage gardens, wild gardens, and naturalized areas for its vibrant blooms and vigorous growth.
- ✓Erosion Control Planting — Utilized on slopes and banks to stabilize soil and prevent runoff due to its extensive root system.
- ✓Cut Flower Arrangements — Flowers can be cut for fresh floral displays, though they lack the fragrance of Lathyrus odoratus.
- ✓Wildlife Habitat — Planted to provide cover and forage for pollinators and small creatures in wildlife-friendly gardens.
- ✓Green Barrier — Can form dense visual screens or barriers when grown on appropriate supports in landscape settings.
- ✓Botanical Specimen — Cultivated in botanical gardens for study and display purposes, showcasing species diversity.
11.Lathyrus Latifolius — Garden Cultivation
- ✓Site Selection — Thrives in full sun to partial shade, requiring at least 6 hours of direct sunlight for optimal flowering.
- ✓Soil Preparation — Prefers well-drained soil; tolerates a range of soil types including poor soils, but benefits from organic matter amendment.
- ✓Planting — Can be grown from seed or transplanted. Sow seeds after the last frost, or start indoors 6-8 weeks prior.
- ✓Support Structure — Requires a sturdy trellis, fence, or other support for its climbing habit; provide early guidance for tendrils.
- ✓Watering — Needs regular watering during dry periods, especially when establishing; established plants are moderately drought-tolerant.
- ✓Fertilization — Generally not needed in rich soils; can benefit from a balanced, slow-release fertilizer in poor soils.
- ✓Pruning — Deadhead spent flowers to encourage continuous blooming; cut back hard in late winter or early spring to manage growth.
- ✓Pests and Diseases — Generally robust, but watch for powdery mildew in humid conditions and common garden pests like aphids.
Reviewed by the Flora Medical Global Botanical Review Panel
Multi-disciplinary editorial group · Botany · Ethnobotany · Herbal-medicine literature
Who reviewed this: This page was checked by the Flora Medical Global Botanical Review Panel — an in-house editorial group of botany graduates, ethnobotany researchers, and horticulture practitioners who collectively maintain our 7,000+ plant encyclopedia. Meet the team.
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Scientific names and synonyms cross-checked against Kew POWO, World Flora Online, and The Plant List.
2. Phytochemical & medicinal cross-reference
Active compounds, traditional uses, and reported activities are cross-referenced with PubMed, USDA Dr. Duke's database, and peer-reviewed ethnobotanical literature.
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Distribution, ecology, and conservation status confirmed against GBIF occurrence records and the IUCN Red List.
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Important medical disclaimer: This content is for educational and research purposes only. It is not medical advice and is not a substitute for consultation with a licensed healthcare provider. Do not use any herb to self-treat a medical condition without professional guidance.
Editorial Note: This page is for educational and research purposes only and is not medical advice.
Written by: Flora Medical Global Editorial Team
Reviewed by: Flora Medical Global Botanical Review Panel
Last Updated: June 15, 2026
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