North America Native Plant

Neglected Sunflower

Botanical name: Helianthus neglectus

USDA symbol: HENE

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Neglected Sunflower: A Rare Native Beauty Worth Protecting Meet the neglected sunflower (Helianthus neglectus), a plant that lives up to its common name in more ways than one. This annual wildflower is not just overlooked in gardens—it’s actually quite rare in the wild, making it a truly special addition to ...

Rare plant alert!

Region: Conservation status by state

Status: S2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Neglected Sunflower: A Rare Native Beauty Worth Protecting

Meet the neglected sunflower (Helianthus neglectus), a plant that lives up to its common name in more ways than one. This annual wildflower is not just overlooked in gardens—it’s actually quite rare in the wild, making it a truly special addition to native plant collections for those lucky enough to find it.

Where Does Neglected Sunflower Call Home?

This native sunflower has a pretty exclusive address list. You’ll only find neglected sunflower growing wild in New Mexico and Texas, where it has adapted to the unique conditions of the American Southwest. Its limited range makes it a true regional treasure.

What Makes This Sunflower Special?

As a member of the sunflower family, Helianthus neglectus shares the classic charm we associate with its more famous cousins. This annual forb grows as a non-woody herbaceous plant, completing its entire life cycle in a single growing season. Like other sunflowers, it likely produces the cheerful yellow blooms that make this plant family so beloved.

A Word of Caution: Rarity Matters

Here’s where things get serious. Neglected sunflower carries a Global Conservation Status of S2Q, which indicates this species may be at risk. When a plant is this rare, we need to be extra thoughtful about how we interact with it.

Important considerations:

  • Never collect seeds or plants from wild populations
  • Only obtain plants or seeds from reputable native plant nurseries
  • Verify that any plant material is ethically and legally sourced
  • Consider this plant only if you’re committed to conservation gardening

Should You Grow Neglected Sunflower?

If you live in New Mexico or Texas and are passionate about preserving rare native species, growing neglected sunflower could be a meaningful way to support conservation efforts. However, this isn’t a plant for casual gardeners.

Good candidates for growing this rare sunflower:

  • Serious native plant enthusiasts
  • Conservation-minded gardeners
  • Those working with native plant societies or botanical gardens
  • Gardeners specifically focused on rare or endangered species

Alternative Native Sunflowers

If you’re drawn to native sunflowers but want more readily available options, consider these southwestern natives:

  • Common sunflower (Helianthus annuus)
  • Prairie sunflower (Helianthus petiolaris)
  • Maximilian sunflower (Helianthus maximiliani)

These alternatives offer similar beauty and ecological benefits without the conservation concerns.

Growing Tips for Neglected Sunflower

While specific growing information for this rare species is limited, we can make educated guesses based on its native habitat in New Mexico and Texas:

  • Likely prefers full sun conditions
  • Probably tolerates drought once established
  • May prefer well-draining soils typical of its native range
  • As an annual, will need to be replanted each year or allowed to self-seed

The Bottom Line

Neglected sunflower is a fascinating example of how much botanical diversity exists right in our own backyards. While most gardeners won’t have the opportunity to grow this rare species, knowing about it helps us appreciate the incredible variety of native plants that call North America home.

If you’re interested in supporting rare plant conservation, consider connecting with local native plant societies, botanical gardens, or conservation organizations. They often have programs focused on preserving and propagating rare species like neglected sunflower.

Remember: sometimes the best way to love a rare plant is to admire it from afar while supporting the efforts of those working to ensure it doesn’t disappear from our landscapes forever.

Neglected Sunflower

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Helianthus L. - sunflower

Species

Helianthus neglectus Heiser - neglected sunflower

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