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Calochortus macrocarpus

An arid-region, drought-tolerant perennial geophyte of western North American sagebrush steppe, propagated by seed or bulbs, with a multi-year juvenile phase before flowering and distinctive light purple flowers with a reddish lateral band and a pale green outer band.

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

Common Names

Sagebrush Mariposa Lily, Green-Banded Mariposa-Lily

Summary

Sagebrush Mariposa Lily is a western North American perennial geophyte with a deep papery-scaled bulb and a stout stem reaching about 8 to 23 inches in height; blue-green, grass-like basal leaves wither by bloom time support a flowering stem bearing 1 to 3 large, erect bell-shaped flowers that are pink to purple with a central green stripe and often a purple band above the bearded nectary; it is insect-pollinated and flowers from June to August in dry sagebrush scrub, yellow-pine forests, and open coniferous woodlands at elevations around 1,300 to 2,000 m; bulbs and flower buds are edible raw or cooked, with mashed bulbs used as a poultice for poison ivy rash.

Cultivation requires deeply drained sandy soil, full sun, and dry winters; very cold-hardy but intolerant of wet winters, with cultivation described as extremely difficult in moister temperate climates; propagation by seed or division of bulbs, seed sown when ripe or in early spring in sharply draining medium with about 5 to 6 weeks stratification, germination 1 to 6 months at 15°C, and 5 to 7 years to flower from seedlings; bulbs should be kept completely dry from midsummer to late fall, outplanting is best in late fall or early spring with spacing of 3 to 4 inches, and protection from gophers/moles is advised; hardy to USDA zones 3 to 7 and UK zone 3, commercially available for ornamental, wild, and edible uses.

Lifecycle

Perennial

Height

8-20 inches

Spread

1/2-4 inches

Hardiness Zones

Zones 3-7

Sunlight Requirements

Ideally full sun. Tolerates partial shade.

Soil Type

Deep, very well-drained fertile sandy soil

Soil Drainage

Very well-drained soil

Soil pH

Tolerates all pH levels

Bloom Color

Light purple to purple, pink to purple, with some blooms having a green stripe down the center of each petal; wide range of colours.

Bloom Time

Spring to Summer

Foliage Color

Blue-green

Leaf Lifecycle

Deciduous

Growth Rate

Moderate

Seasons of Interest

Spring and Summer

Propagation Methods

Seeds, Division of bulbs, Stem bulbils (bulblets)

Attracts Wildlife

Attracts bees, butterflies, and other pollinators

Taxonomy

Taxonomic Rank
Species
Author
Douglas
Publication
Trans. Hort. Soc. London 7: 276 (1828)

Superior Taxa

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

Inferior Taxa

Calochortus macrocarpus var. macrocarpus Calochortus macrocarpus var. maculosus

Synonyms

Mariposa macrocarpa

References

Sagebrush Mariposa - Calscape. calscape.org.
Microsoft Word - Calochortus.doc. courses.washington.edu.
Calochortus macrocarpus | International Plant Name…. ipni.org.
E-Flora BC Atlas Page. linnet.geog.ubc.ca.
Calochortus macrocarpus Douglas GRIN-Global. npgsweb.ars-grin.gov.
Calochortus macrocarpus Sagebrush Mariposa Lily, N…. pfaf.org.
Calochortus macrocarpus Douglas | Plants of the Wo…. powo.science.kew.org.
Calochortus macrocarpus (Sagebrush Mariposa Lily) …. practicalplants.org.
Calochortus macrocarpus | /RHS. rhs.org.uk.
Calochortus macrocarpus. species.data.kew.org.
SEINet - AZ/NM Node - Calochortus macrocarpus. swbiodiversity.org.
Calochortus macrocarpus - Useful Temperate Plants. temperate.theferns.info.
Open Tree taxonomy: Calochortus macrocarpus. tree.opentreeoflife.org.
Calochortus macrocarpus. ucjeps.berkeley.edu.
Calochortus macrocarpus - Calflora. calflora.org.
Calochortus macrocarpus | Green-banded Mariposa-li…. pnwflowers.com.
Calochortus macrocarpus (Sagebrush mariposa lily) …. wildflower.org.
World Flora Online. worldfloraonline.org. June 2024.