Calochortus pulchellus

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Calochortus pulchellus
Calochortus pulchellus.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Liliales
Family: Liliaceae
Genus: Calochortus
Species: C. pulchellus
Binomial name
Calochortus pulchellus
(Benth.) Alph. Wood 1868, not Dougl. ex Benth. 1835 (latter name not validly published)[1]
  • Cyclobothra pulchella Benth.
  • Calochortus pulchellus Dougl. ex Benth. 1835, not validly published

Calochortus pulchellus is a rare species of flowering plant in the lily family known by the common name Mt. Diablo fairy-lantern or Mount Diablo globelily.[2][3]

Calochortus pulchellus is endemic to California, where it is mainly restricted to Mount Diablo of the Diablo Range, in Contra Costa County of the eastern San Francisco Bay Area. [4] There are historical occurrences in the North California Coast Ranges, within Marin, Solano, Napa, and Humboldt Counties. [3]

It grows in chaparral and woodland habitats, currently only known on the bayside−western slopes of Mount Diablo.[4]


Calochortus pulchellus is a perennial herb growing a branching stem up to about 30 centimeters tall. The basal leaf is up to 40 centimeters long and does not wither at flowering; there are 2 or 3 smaller leaves farther up the stem.[4]

The inflorescence is a solitary flower or a cluster of several flowers, which are nodding and usually spherical with all their petal tips touching. The three sepals and three petals are 2 or 3 centimeters long and pale to deep yellow. The petals are thinly hairy inside and often fringed with yellow hairs. [4]

The fruit is a winged capsule 2-3 centimeters in length.[4]

formerly included[2]

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