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Calochortus subalpinus

Perennial bulb-forming monocot lily native to the Pacific Northwest (Washington and Oregon), with an unbranched stem up to about 30 cm tall and white to pale lavender flowers with white and orange hairs on the petals, blooming May–August in rocky, high-elevation grasslands

Is Calochortus subalpinus growing in your garden? Record it and all of your plants in Known.

Common Names

Subalpine Mariposa Lily, Cascade Mariposa Lily, Mountain Cat's Ear, Cat's Ear Lily

Summary

Subalpine mariposa lily is a bulbous perennial herb native to the northwestern United States, occurring in Oregon and Washington. It grows from a rosette of basal leaves into an unbranched stem about 5–20 cm tall, bearing 1–5 creamy white flowers whose inner surfaces are hairy; sepals are about the same length as petals and each sepal bears a purple dot, with a lunate, nearly tubular nectary and hairs on the front crest (back crest with sparse hairs).

Its habitat includes forests, dry meadows, rocky grasslands, and rocky summit balds at mid- to high elevations (800–2500 m), including volcanic soils in open areas. It blooms from May to August and is native to western Oregon and Washington; it is a bulbous geophyte with basal leaves and uncommon rarity. Indigenous peoples historically dug bulbs for food, eaten raw or roasted.

Lifecycle

Perennial

Height

2-11 inches

Spread

Unknown

Soil Type

Rocky soils, volcanic soils

Soil Drainage

Unknown

Soil pH

No data available.

Bloom Color

Cream to white, white to pale lavender, white to yellowish cream

Bloom Time

Summer

Fall Foliage Color

Unknown

Seasons of Interest

Spring and Summer

Propagation Methods

Seeds, Division

Attracts Wildlife

Attracts beetles

Taxonomy

Taxonomic Rank
Species
Author
Piper
Publication
Contr. U.S. Natl. Herb. 11: 195 (1906)

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Angiosperms
Order
Liliales
Family
Liliaceae
Genus
Calochortus

Synonyms

Calochortus lobbii

References

Calochortus subalpinus - 10000 Things of the Pacif…. 10000thingsofthepnw.com.
Calochortus subalpinus. en.wikipedia.org.
Calochortus subalpinus | International Plant Names…. ipni.org.
Taxonomy browser (Calochortus subalpinus). ncbi.nlm.nih.gov.
OregonFlora: Calochortus subalpinus vs. Calochortu…. nwwildflowers.com.
USDA Plants Database. plants.sc.egov.usda.gov.
Calochortus subalpinus Piper | Plants of the World…. powo.science.kew.org.
Calochortus subalpinus. species.data.kew.org.
Calochortus subalpinus | subalpine mariposa lily. wildflowersearch.org.
Central Oregon Lilies - Deschutes Land Trust. deschuteslandtrust.org.
Calochortus subalpinus | Subalpine Mariposa Lily. pnwflowers.com.
World Flora Online. worldfloraonline.org. June 2024.