North America Native Plant

Grassland Beggarticks

Botanical name: Bidens micrantha micrantha

USDA symbol: BIMIM

Life cycle: perennial

Habit: subshrub

Native status: Native to Hawaii  

Synonyms: Bidens degeneri Sherff (BIDE2)  âš˜  Bidens degeneri Sherff var. apioides (BIDEA)  âš˜  Bidens micrantha Gaudich. var. caduca (Sherff) Sherff (BIMIC)  âš˜  Bidens micrantha Gaudich. var. laciniata (Hillebr.) Sherff (BIMIL)  âš˜  Bidens perversa O. Deg. & Sherff (BIPE2)  âš˜  Bidens perversa O. Deg. & Sherff var. aquilonalis (BIPEA)  âš˜  Bidens sandvicensis Less. var. caduca Sherff (BISAC2)  âš˜  Bidens sandvicensis Less. var. leiocarpa O. Deg. & Sherff (BISAL)   

Grassland Beggarticks: A Rare Hawaiian Native Worth Protecting If you’re passionate about native Hawaiian plants and conservation gardening, you may have encountered the intriguingly named grassland beggarticks (Bidens micrantha micrantha). This lesser-known native deserves attention not just for its quirky moniker, but for its important role in Hawaii’s unique ecosystem ...

Rare plant alert!

Region: Conservation status by state

Status: S3T3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘

Grassland Beggarticks: A Rare Hawaiian Native Worth Protecting

If you’re passionate about native Hawaiian plants and conservation gardening, you may have encountered the intriguingly named grassland beggarticks (Bidens micrantha micrantha). This lesser-known native deserves attention not just for its quirky moniker, but for its important role in Hawaii’s unique ecosystem and its current conservation status.

What Is Grassland Beggarticks?

Grassland beggarticks is a perennial shrub that stays refreshingly compact in the garden. This low-growing beauty typically reaches just 1.5 feet tall, though it can occasionally stretch up to 3 feet at maturity. Don’t let its modest size fool you – this native Hawaiian plant packs plenty of character into its petite frame.

Like many plants with long botanical histories, grassland beggarticks has collected quite a few scientific aliases over the years, including Bidens degeneri and Bidens perversa, among others. But regardless of what botanists have called it through the decades, this plant remains uniquely Hawaiian.

Where Does It Come From?

Grassland beggarticks is exclusively native to Hawaii, where it has evolved to thrive in the islands’ distinctive climate and growing conditions. You won’t find this particular species growing wild anywhere else in the world – it’s as Hawaiian as it gets.

Why This Plant Needs Your Attention

Here’s where things get serious: grassland beggarticks has a Global Conservation Status of S3T3, which indicates it’s a species of conservation concern. This rarity status means that every garden that can successfully grow this plant becomes a small but meaningful part of conservation efforts.

Important note for gardeners: If you’re interested in growing grassland beggarticks, please only obtain plants or seeds from reputable, ethical sources that can verify the material was responsibly collected or propagated. Never harvest from wild populations.

Should You Grow Grassland Beggarticks?

The honest answer is: it depends on your gardening goals and location. This plant presents both opportunities and challenges:

  • Perfect for: Conservation-minded gardeners in Hawaii who want to support native species
  • Great if you: Appreciate compact, low-maintenance perennial shrubs
  • Challenging because: Limited availability and specific growing requirements
  • Consider carefully if: You’re new to native plant gardening

Growing Conditions and Care

Unfortunately, detailed cultivation information for grassland beggarticks is limited, which reflects both its rarity and its specialized nature. What we do know is that as a Hawaiian native, it likely prefers:

  • Warm temperatures year-round
  • Well-draining soil
  • Conditions that mimic its natural grassland habitat

If you’re serious about growing this species, your best bet is connecting with native plant societies in Hawaii or botanical gardens that specialize in Hawaiian flora. They can provide the most current and location-specific growing advice.

The Bottom Line

Grassland beggarticks represents something special in the plant world – a rare native that embodies the unique natural heritage of Hawaii. While it may not be the easiest plant to find or grow, it offers gardeners a chance to participate in conservation while adding a truly distinctive species to their landscape.

If you decide to seek out this uncommon beauty, remember that responsible sourcing isn’t just good practice – it’s essential for protecting wild populations. Your garden could become a small sanctuary for a species that needs all the help it can get.

For most gardeners outside Hawaii, exploring other native Bidens species in your region might be a more practical choice. But for Hawaiian gardeners with a passion for rare natives, grassland beggarticks could be exactly the kind of meaningful challenge that makes gardening so rewarding.

Grassland Beggarticks

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

Bidens L. - beggarticks

Species

Bidens micrantha Gaudich. - grassland beggarticks

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