North America Native Plant

Hesse’s Pussypaws

Botanical name: Cistanthe parryi var. hesseae

USDA symbol: CIPAH

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Calyptridium parryi A. Gray var. hesseae J.H. Thomas (CAPAH)   

Hesse’s Pussypaws: A Rare California Native Worth Knowing If you’re a California gardener passionate about native plants, you might have stumbled across the charmingly named Hesse’s pussypaws (Cistanthe parryi var. hesseae). This little-known annual forb represents one of nature’s more specialized offerings – a plant that’s as intriguing as its ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4T2: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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) ⚘ 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 ⚘

Hesse’s Pussypaws: A Rare California Native Worth Knowing

If you’re a California gardener passionate about native plants, you might have stumbled across the charmingly named Hesse’s pussypaws (Cistanthe parryi var. hesseae). This little-known annual forb represents one of nature’s more specialized offerings – a plant that’s as intriguing as its whimsical common name suggests.

What is Hesse’s Pussypaws?

Hesse’s pussypaws is a native California annual that belongs to the purslane family. As a forb, it’s an herbaceous plant without woody stems, completing its entire life cycle within a single growing season. You might also encounter this plant listed under its scientific synonym, Calyptridium parryi var. hesseae, in older botanical references.

This plant calls only California home, making it a true Golden State endemic. Its distribution within the state is quite limited, contributing to its special conservation status.

A Word About Rarity

Before we dive into growing tips, there’s something important to know: Hesse’s pussypaws has a conservation status of S3S4T2, indicating it’s considered uncommon to somewhat common but still warrants attention from a conservation perspective. If you’re interested in adding this plant to your garden, it’s crucial to source seeds or plants only from reputable native plant nurseries that practice ethical collection methods. Never collect from wild populations.

Why Grow Hesse’s Pussypaws?

So why might you want to include this rare native in your garden? Here are a few compelling reasons:

  • Supporting biodiversity: By growing native plants, especially uncommon ones, you’re helping preserve California’s botanical heritage
  • Low-maintenance appeal: As an annual adapted to California’s climate patterns, it typically requires minimal intervention once established
  • Authentic native landscaping: Perfect for gardeners creating truly authentic California native plant communities
  • Educational value: A conversation starter about California’s unique and sometimes threatened flora

Growing Conditions and Care

While specific growing information for Hesse’s pussypaws is limited due to its rarity, we can make educated assumptions based on its classification as a California native annual forb:

  • Soil: Likely prefers well-draining soils, as most California natives do
  • Water: Being an annual, it probably follows California’s natural rainfall patterns – germinating with fall/winter rains and completing its cycle by late spring or early summer
  • Sun exposure: Most likely thrives in full sun to partial shade
  • Climate: Adapted to California’s Mediterranean climate zones

Garden Design Applications

Hesse’s pussypaws would be most at home in:

  • Native plant gardens focused on California endemics
  • Wildflower meadows or naturalized areas
  • Rock gardens or areas with excellent drainage
  • Educational or demonstration gardens highlighting rare natives

The Bottom Line

Hesse’s pussypaws represents both an opportunity and a responsibility. While it offers California gardeners a chance to grow a truly special native plant, its rarity means we must approach cultivation thoughtfully. If you can source it ethically and provide appropriate growing conditions, this little annual can be a meaningful addition to your native plant collection.

Remember, sometimes the most rewarding plants aren’t the flashiest ones, but those that connect us more deeply to our local ecosystems. Hesse’s pussypaws, with its endearing name and conservation significance, certainly fits that description.

Just be sure to do your homework on sourcing – this is one plant where provenance really matters!

Hesse’s Pussypaws

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

Caryophyllales

Family

Portulacaceae Dumort. - Purslane family

Genus

Cistanthe Spach - pussypaws

Species

Cistanthe parryi (A. Gray) Hershkovitz - Parry's pussypaws

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