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Calochortus uniflorus
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Large Flowered Star Tulip
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Calochortus uniflorus

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About Large Flowered Star Tulip (Calochortus uniflorus) Calochortus uniflorus is a species of flowering plant in the lily family known by the common names Monterey mariposa lily and large-flowered star-tulip. It is native to California and Oregon, where it grows in moist areas, such as meadows, in coastal hills and lower-elevation mountains. It is a perennial herb producing a short, unbranching stem generally less than 5 centimeters tall. The basal leaf is up to 40 centimeters long and does not wither by flowering; there may be one or more shorter leaves farther up the stem. The flower cluster is a loose cluster of 1 to 5 erect, bell-shaped flowers. Each flower has three petals up to about 3 centimeters long and three shorter sepals beneath. The petals are white to pink in color and may have purple spotting near the bases. The fruit is a capsule up to 2.5 centimeters long.
Plant Description
Plant Type
Perennial herb

Max. Height
2.4 in (6.1 cm)

Flower Color
Pink, White

Flowering Season

Native Status
Natural Setting
Site Type
Moist meadows


Elevation ?
-7' - 8911'

Annual Precip. ?
15.0" - 92.3"

Summer Precip. ?
0.21" - 2.63"

Coldest Month ?
29.4° F - 50.6° F

Hottest Month ?
47.3° F - 74.9° F

Humidity ?
0.03 vpd - 23.93 vpd

Sunset Zones ?
4, 5*, 6, 7*, 9, 14*, 15*, 16*, 17*, 18, 19*, 20*, 21*, 22*, 23*, 24*

Landscaping Information
Ease of Care
Moderately Easy

Water Requirement ?
Moderate - High
Extremely Low
Very Low
Moderate - High

Nursery Availability
Rarely Available

Other Names
Common Names
Monterey Mariposa Lily, Large-flowered Star-tulip

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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