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Napa Bluecurls
Trichostema ruygtii
About Napa Bluecurls (Trichostema ruygtii) 0 Nurseries Carry This Plant Trichostema ruygtii, with the common name Napa bluecurls, is a species of flowering plant in the mint family. It was first described to science in 2006. The plant is endemic to California in the northern San Francisco Bay Area, where it is known from the southern Mayacamas Mountains, in Napa County and into western Solano County. Its habitats include chaparral, oak woodland, mixed evergreen forest, and vernal pools in grasslands. Trichostema ruygtii is an annual herb that grows under 5 decimetres (1. 6 ft) in height. The stems and lanceolate leaves have short hairs. The flowers are a pale lavender in color. Its bloom period is June to October. The species is threatened by agriculture and development. Trichostema ruygtii is listed as a Critically endangered species on the California Native Plant Society Inventory of Rare and Endangered Plants.
Plant Description
Plant Type
Plant Type
Annual herb

1.6 ft tall


Flower Color
Flower Color

Wildlife Supported

Butterflies & moths hosted ( 2 likely * ) SHOW ALL

Landscaping Information
Natural Setting
Annual Precipitation: 27.0" - 41.8", Summer Precipitation: 0.33" - 0.47", Coldest Month: 46.4" - 49.3", Hottest Month: 69.3" - 73.7", Humidity: 1.41" - 21.05", Elevation: 93" - 1830"

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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