North America Native Plant

Stalked Popcornflower

Botanical name: Plagiobothrys stipitatus var. micranthus

USDA symbol: PLSTM

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Allocarya stipitata Greene ssp. micrantha Piper (ALSTM)   

Stalked Popcornflower: A Delicate Native Annual Worth Protecting If you’re looking to add a touch of delicate beauty to your native plant garden, stalked popcornflower (Plagiobothrys stipitatus var. micranthus) might just be the charming annual you’ve been seeking. This petite wildflower brings understated elegance to naturalized landscapes while supporting local ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3T4: Status is uncertain but is somewhere between the following rankings: 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. ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘

Stalked Popcornflower: A Delicate Native Annual Worth Protecting

If you’re looking to add a touch of delicate beauty to your native plant garden, stalked popcornflower (Plagiobothrys stipitatus var. micranthus) might just be the charming annual you’ve been seeking. This petite wildflower brings understated elegance to naturalized landscapes while supporting local ecosystems in the western United States.

Getting to Know Stalked Popcornflower

Stalked popcornflower is an annual forb – essentially a non-woody flowering plant that completes its entire life cycle in one growing season. As a member of the borage family, it produces small clusters of tiny white flowers that curl in characteristic coiled formations, giving the plant its whimsical popcorn common name.

You might also encounter this plant listed under its botanical synonym, Allocarya stipitata Greene ssp. micrantha Piper, in older gardening references or seed catalogs.

Where It Calls Home

This native beauty is naturally found across three western states: California, Nevada, and Oregon. As a plant indigenous to the lower 48 states, it has adapted perfectly to the unique growing conditions of the American West, making it an excellent choice for gardeners wanting to support local biodiversity.

Why Consider Stalked Popcornflower for Your Garden?

There are several compelling reasons to include this native annual in your landscape:

  • Supports Native Ecosystems: As a native plant, it provides food and habitat for local wildlife and pollinators
  • Low Maintenance: Once established, it requires minimal care and water
  • Naturalized Beauty: Perfect for wildflower meadows and informal native plant gardens
  • Space Efficient: Its compact size makes it suitable for smaller gardens

Important Conservation Note

Before you rush to plant stalked popcornflower, there’s something important to know: this variety has a conservation status that suggests it may face some population pressures in the wild. If you decide to grow it, please source your seeds or plants only from reputable native plant nurseries that practice ethical collection methods. Never collect seeds or plants from wild populations.

Growing Stalked Popcornflower Successfully

Growing this charming native is relatively straightforward if you can replicate its preferred conditions:

Ideal Growing Conditions:

  • Full sun to partial shade
  • Well-draining soil
  • USDA Hardiness Zones 7-10
  • Minimal water once established

Planting Tips:

  • Direct seed in fall for spring germination
  • Scatter seeds over prepared soil and lightly rake in
  • Keep soil consistently moist until germination occurs
  • Thin seedlings if they become overcrowded

Garden Design Ideas

Stalked popcornflower shines brightest when used in:

  • Native wildflower meadows
  • Naturalized garden borders
  • Rock gardens with well-draining soil
  • Pollinator gardens paired with other native annuals

Its delicate white flowers provide a lovely contrast when planted alongside more colorful native wildflowers, and its low-growing habit makes it an excellent choice for front-of-border plantings.

Supporting Pollinators

While small in stature, stalked popcornflower punches above its weight when it comes to supporting beneficial insects. The tiny flowers attract small native bees and other pollinators, making it a valuable addition to any pollinator-friendly garden design.

The Bottom Line

Stalked popcornflower offers native plant enthusiasts a chance to grow something truly special – a delicate, low-maintenance annual that supports local ecosystems while adding subtle beauty to naturalized landscapes. Just remember to source it responsibly and enjoy watching this charming native complete its annual dance in your garden.

By choosing native plants like stalked popcornflower, you’re not just creating a beautiful garden – you’re helping preserve the natural heritage of the American West, one small white flower at a time.

Stalked Popcornflower

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

Lamiales

Family

Boraginaceae Juss. - Borage family

Genus

Plagiobothrys Fisch. & C.A. Mey. - popcornflower

Species

Plagiobothrys stipitatus (Greene) I.M. Johnst. - stalked popcornflower

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