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Dunn's Mariposa Lily
Calochortus dunnii

About Dunn's Mariposa Lily (Calochortus dunnii) Calochortus dunnii is a rare species of flowering plant in the lily family known by the common name Dunn's Mariposa lily. It is native to Baja California and San Diego County in California, where it is known from only a few occurrences in the chaparral and forests of the local mountain ranges. It is a perennial herb growing a slender, branching stem up to 60 centimeters tall. The waxy, channeled basal leaf is 10 to 20 centimeters long and withers at flowering. The flower cluster bears 2 to 6 erect bell-shaped flowers. Each flower has three sepals and three white or pinkish petals. The petals are up to 3 centimeters long and spotted with red and yellow near the bases, where there are patches of yellow hairs. The fruit is a narrow, angled capsule 2 to 3 centimeters long. The main threat to the existence of this rare species is collecting by admirers of the attractive flowers.
Plant Description
Plant Type
Perennial herb

Max. Height
2 ft (0.6 m)

Flower Color
White, Pink, Yellow, Red

Native Status
Natural Setting
Site Type
Dry rocky ridges

Sun, Part Shade

Elevation ?
-62' - 5231'

Annual Precip. ?
2.7" - 32.5"

Summer Precip. ?
0.38" - 1.89"

Coldest Month ?
39.6° F - 58.8° F

Hottest Month ?
65.1° F - 88.0° F

Humidity ?
1.44 vpd - 38.19 vpd

Landscaping Information
Propagation ?
For propagating by seed: No treatment.

Nursery Availability
Rarely Available

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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