Calystegia atriplicifolia subsp. buttensis

Butte county morning-glory, Butte County Morning-Glory

Family: Convolvulaceae · Type: perennial · Native

Conservation status: CNPS 4.2

Butte county morning-glory is a native perennial herb ranked 4.2 by CNPS, found in the Klamath Ranges, California Ranges, and San Francisco Bay Area in dry, rocky places within open forest and chaparral at elevations of 600 to 1,200 meters. Flowering from May to July, this plant produces white (occasionally pink-tinged) flowers 30 to 45 millimeters long with distinctive trumpet-like form. Growing with decumbent to nearly erect stems 10 to 50 centimeters tall, it emerges from an underground rhizome and spreads with a generally glabrous appearance. Its leaves have triangular to kidney-shaped blades 2 to 4 centimeters long, with soft lobes that are broadly rounded and often without clear boundaries. The plant's peduncles are typically shorter than 5 centimeters and emerge beneath the leaves, with small cordate-elliptic bracts that partially expose the flower's green sepals.

Habitat: Dry, rocky places in open forest, chaparral

Bloom period: May-Jul

Elevation: 600-1200 m

Bioregions: KR, CaRH, SnFrB.

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.