''Calystegia collina'' is a species of

morning glory Morning glory (also written as morning-glory) is the common name for over 1,000 species of flowering plants in the family Convolvulaceae, whose current taxonomy and systematics are in flux. Morning glory species belong to many genera, some of ...

known by the common name Coast Range false bindweed. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the

Coast Ranges The Pacific Coast Ranges (officially gazetted as the Pacific Mountain System in the United States) are the series of mountain ranges that stretch along the West Coast of North America from Alaska south to Northern and Central Mexico. Although the ...

of northern and central

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, where it grows on slopes and in woodlands, often on

serpentine soil Serpentine soil is an uncommon soil type produced by weathered ultramafic rock such as peridotite and its metamorphic derivatives such as serpentinite. More precisely, serpentine soil contains minerals of the serpentine subgroup, especially anti ...

Description

''Calystegia collina'' is a

rhizomatous In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...

perennial herb with densely hairy stems and foliage. The stem lies flat and generally does not climb as many other morning glories do. It reaches a maximum length of about 30 centimeters. The small leaves are kidney-shaped or deeply lobed and are wavy or crinkly along the edges. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

holds a single white flower 2 to 5 centimeters wide when fully open.

External links

Jepson Manual Treatment: ''Calystegia collina''''Calystegia collina'' Photo gallery
collina Endemic flora of California Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Plants described in 1898 Flora without expected TNC conservation status {{Solanales-stub