North America Native Plant

Pink Redstem

Botanical name: Ammannia latifolia

USDA symbol: AMLA3

Life cycle: annual

Habit: subshrub

Native status: Native to the lower 48 states âš˜ Native to Puerto Rico âš˜ Native to the U.S. Virgin Islands  

Synonyms: Ammannia koehnei Britton (AMKO)  âš˜  Ammannia teres Raf. var. exauriculata (Fernald) Fernald (AMTEE)   

Pink Redstem: A Native Wetland Gem for Your Garden If you’re looking to add authentic native charm to your wetland garden or pond area, pink redstem (Ammannia latifolia) might be just the plant you’ve been searching for. This delicate annual herb brings subtle beauty and important ecological benefits to wet ...

Rare plant alert!

Region: New Jersey

Status: Endangered, Listed Pinelands, Highlands Listed, S1: New Jersey Highlands region ⚘ New Jersey Pinelands region ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Pink Redstem: A Native Wetland Gem for Your Garden

If you’re looking to add authentic native charm to your wetland garden or pond area, pink redstem (Ammannia latifolia) might be just the plant you’ve been searching for. This delicate annual herb brings subtle beauty and important ecological benefits to wet areas that many other plants simply can’t handle.

What Is Pink Redstem?

Pink redstem is a native annual forb that belongs to the loosestrife family. Don’t let its small stature fool you – this little powerhouse is perfectly adapted to life in constantly wet conditions. As its name suggests, the plant develops attractive reddish stems that complement its small, narrow leaves and tiny pink flowers.

Also known by its botanical name Ammannia latifolia, this species may also be found in older references as Ammannia koehnei or Ammannia teres var. exauriculata.

Where Pink Redstem Grows Naturally

This native beauty calls the southeastern and mid-Atlantic United States home, naturally occurring in Florida, Georgia, Louisiana, Maryland, Mississippi, New Jersey, North Carolina, South Carolina, Texas, and Virginia. It also extends its range into Puerto Rico and the U.S. Virgin Islands, showing its adaptability to various wetland conditions across a broad geographic area.

A Word of Caution: Rarity Status

Before you rush out to plant pink redstem, there’s something important to know. In New Jersey, this species is listed as Endangered with an S1 rarity status, meaning it’s critically imperiled in that state. If you’re gardening in New Jersey or anywhere else where the plant might be rare, please only use responsibly sourced material from reputable native plant nurseries – never collect from wild populations.

Why Choose Pink Redstem for Your Garden?

Pink redstem shines in specific garden situations where other plants struggle:

  • Wetland restoration: Perfect for recreating natural wetland ecosystems
  • Pond margins: Thrives in those tricky spots around water features
  • Rain gardens: Handles seasonal flooding like a champ
  • Natural areas: Adds authentic native character to naturalized landscapes

As an obligate wetland species, pink redstem almost always occurs in wetlands across all regions where it grows. This makes it an excellent choice for gardeners dealing with persistently wet or seasonally flooded areas.

Growing Conditions and Care

Pink redstem is surprisingly easy to grow once you understand its needs:

  • Sunlight: Prefers full sun conditions
  • Soil: Constantly moist to wet soils – think marsh-like conditions
  • Water: Tolerates and actually prefers seasonal flooding
  • Hardiness: Suitable for USDA zones 6-10

Since it’s an annual, pink redstem completes its entire life cycle in one growing season, relying on seeds to return the following year. The good news? It self-seeds readily when happy, so you’ll likely see it return year after year with minimal effort on your part.

Garden Design and Aesthetic Appeal

While pink redstem won’t win any awards for showiness, its subtle charm lies in its delicate texture and natural appearance. The small pink flowers and reddish stems create gentle color interest throughout the growing season, while the narrow leaves add fine texture to wetland plantings.

This plant works best in naturalized settings where its modest size (typically staying quite low and compact) can be appreciated up close. Consider pairing it with other native wetland species for a authentic ecosystem approach to garden design.

Benefits for Wildlife and Pollinators

Though small, pink redstem’s flowers attract beneficial insects and small pollinators. As a native species, it’s co-evolved with local wildlife and provides resources that non-native plants simply can’t offer. The seeds may also provide food for various small animals and birds.

Is Pink Redstem Right for Your Garden?

Pink redstem is perfect for you if:

  • You have consistently wet or marshy areas in your landscape
  • You’re interested in native wetland restoration
  • You appreciate subtle, naturalistic beauty over flashy displays
  • You want low-maintenance plants that self-seed

However, it might not be the best choice if you’re looking for drought-tolerant plants or showy flowers for a formal garden setting.

When grown in appropriate wet conditions with adequate sunlight, pink redstem requires minimal care and will reward you with its quiet charm year after year. Just remember to source your plants responsibly, especially in areas where the species might be rare, and enjoy watching this little native gem bring authentic wetland beauty to your garden.

Pink Redstem

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

Myrtales

Family

Lythraceae J. St.-Hil. - Loosestrife family

Genus

Ammannia L. - redstem

Species

Ammannia latifolia L. - pink redstem

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