

Daggerpod Anelsonia eurycarpa
Daggerpod is a perennial wildflower native to the lower 48 states. It blooms Jul – Aug.
More about this plant
Anelsonia is a monotypic genus in the family Brassicaceae containing the single species Anelsonia eurycarpa, which is known by the common name daggerpod. It is similar to Phoenicaulis cheiranthoides, but at present they are treated in separate genera. This species is a fleshy, hairy plant of mountain habitats throughout the western United States from California to Idaho and can be found from 1600 to 4100 m. Above the rosette of velvety, fingerlike leaves it bears densely packed inflorescences of tiny white flowers. The distinctive fruits develop and dwarf the rest of the plant under an array of saillike pod structures, each on a pedicel. The fruits are each 2 to 3 centimeters tall, elliptic, and papery to leathery across a span between stiff septa. They are white, often with areas of purple coloration, or brown. Within the folds of the fruit are several seeds. Anelsonia was named for the botanist Aven Nelson. Wikipedia →
Growing & care
USDA PLANTS · TRY- Hardiness
- ≥ zone 7 derived from its U.S. range
- Lifespan
- Perennial
How we know this (1) Methods & honest limits
We take the plant’s U.S. county range and look up each county’s long-term climate, then summarise: native rainfall = the median annual rainfall across its counties; heat tolerance = the warm end (90th percentile) of average temperature across its range (mirroring how our cold-hardiness floor uses an extreme). Counties + medians blunt the roadside/observer bias that makes point-level climate unreliable. Needs at least five placeable counties.
Honest limits: A realized, sampling-biased niche (where it has been recorded, not its physiological optimum), and county climate is coarse — large Western counties span deserts and mountains. Derived guide, never a measured fact.
Sources for this entry (13) Open & cited
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