North America Native Plant

San Fernando Valley Spineflower

Botanical name: Chorizanthe parryi var. fernandina

USDA symbol: CHPAF

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Chorizanthe fernandina S. Watson (CHFE6)   

San Fernando Valley Spineflower: A Rare Gem for Conservation-Minded Gardeners Meet the San Fernando Valley spineflower (Chorizanthe parryi var. fernandina), a tiny but mighty native annual that’s as rare as it is charming. This diminutive wildflower might not win any flashy flower contests, but it holds a special place in ...

Rare plant alert!

Region: Conservation status by state

Status: S2T1: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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) ⚘ 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) ⚘

San Fernando Valley Spineflower: A Rare Gem for Conservation-Minded Gardeners

Meet the San Fernando Valley spineflower (Chorizanthe parryi var. fernandina), a tiny but mighty native annual that’s as rare as it is charming. This diminutive wildflower might not win any flashy flower contests, but it holds a special place in California’s botanical heritage and could be the perfect addition to your native plant garden—with some important caveats.

What Makes This Little Spineflower Special?

The San Fernando Valley spineflower is a true California native, belonging exclusively to the Golden State. This annual forb (that’s botanist-speak for a non-woody flowering plant) has delicate clusters of tiny white to pinkish flowers that appear almost like miniature fireworks when you get up close. While it may seem unassuming from a distance, its intricate flower structures and specialized adaptations make it a fascinating study in botanical evolution.

Also known by its synonym Chorizanthe fernandina, this plant represents the incredible diversity of California’s native flora. As an annual, it completes its entire life cycle in one growing season, making every blooming period precious.

Where Does It Call Home?

This spineflower is endemic to California, with its historic range centered in the San Fernando Valley region of Southern California. Unfortunately, urban development has significantly reduced its natural habitat, making it increasingly rare in the wild.

A Word of Caution: Rarity Matters

Important conservation note: The San Fernando Valley spineflower has a Global Conservation Status of S2T1, indicating it’s critically rare. If you’re interested in growing this species, it’s essential to source seeds or plants only from reputable native plant societies or conservation organizations that practice responsible collection methods. Never collect seeds from wild populations.

Why Grow San Fernando Valley Spineflower?

While this isn’t your typical showy garden flower, there are compelling reasons conservation-minded gardeners might want to include it in their landscapes:

  • Conservation impact: Growing rare natives helps preserve genetic diversity and supports conservation efforts
  • Pollinator support: The small flowers attract tiny native bees and other specialized pollinators
  • Educational value: Perfect for demonstrating California’s unique botanical heritage
  • Low maintenance: Once established, it requires minimal care and water
  • Authentic habitat creation: Ideal for restoration projects or authentic Southern California native gardens

Growing Conditions and Care

The San Fernando Valley spineflower thrives in USDA hardiness zones 9-10 and prefers conditions that mimic its native habitat:

  • Sunlight: Full sun exposure
  • Soil: Well-draining sandy or rocky soils
  • Water: Minimal irrigation; drought-tolerant once established
  • Planting time: Direct seed in fall for spring germination

Garden Design Ideas

This ground-level beauty works best in specialized settings:

  • Native plant gardens: Combine with other California natives for authentic regional landscaping
  • Rock gardens: Its low-growing habit complements rocky, well-draining environments
  • Xerophytic gardens: Perfect for water-wise landscaping focused on drought-adapted plants
  • Educational gardens: Ideal for botanical gardens or school gardens focused on conservation

The Bottom Line

The San Fernando Valley spineflower isn’t for every garden or every gardener. Its subtle beauty and specialized needs make it best suited for dedicated native plant enthusiasts and conservation-minded gardeners. However, if you’re passionate about preserving California’s botanical heritage and have the right growing conditions, this rare annual could be a meaningful addition to your landscape.

Remember: always source this plant responsibly, and consider it an investment in conservation rather than just another pretty face in the garden. Sometimes the most important plants are the ones that whisper rather than shout.

San Fernando Valley Spineflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Polygonales

Family

Polygonaceae Juss. - Buckwheat family

Genus

Chorizanthe R. Br. ex Benth. - spineflower

Species

Chorizanthe parryi S. Watson - San Bernardino spineflower

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