Leptosiphon grandiflorus

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Leptosiphon grandiflorus
Linanthusgrandiflorus goldfields.jpg
with goldfields (Lasthenia californica)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Ericales
Family: Polemoniaceae
Genus: Leptosiphon
Species: L. grandiflorus
Binomial name
Leptosiphon grandiflorus
(Benth.) J.M. Porter & L.A. Johnson

Linanthus grandiflorus

Leptosiphon grandiflorus (syn. Linanthus grandiflorus) is a species of flowering plant in the phlox family known by the common names large-flower linanthus and large flowered leptosiphon.


It is endemic to California, where it is known from the California Coast Ranges of the Central Coast and the San Francisco Bay Area. [1] It grows below 1,200 metres (3,900 ft) in chaparral, coastal prairie, coastal sage scrub, closed-cone pine forest, grassland, and oak woodland habitats. [1]

It is California Department of Fish and Wildlife and IUCN listed Vulnerable species, and is on the California Native Plant Society Inventory of Rare and Endangered Plants. [2] Its current range is uncertain because many known occurrences of the plant have been extirpated.[2]


Leptosiphon grandiflorus is an annual herb producing a hairy stem with occasional leaves which are each divided into linear lobes up to 3 centimeters long.

The inflorescence at the tip of the stem is a loose cluster of a few white or pinkish funnel-shaped flowers with lobes up to 1.5 centimeters long. The bloom period is April to July.

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