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Taxon  Report  
Cryptantha watsonii  (A. Gray) Greene
Watson's cryptantha
Cryptantha watsonii is an annual herb that is native to California, and also found elsewhere in western North America.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial

Bloom Period
Genus: Cryptantha
Family: Boraginaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Subalpine Forest, Pinyon-Juniper Woodland
Name Status:
Accepted by JEF + PLANTS

Information about  Cryptantha watsonii from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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[oregonflora.org] Description, Habitat: Plants 10 to 35 cm. Stems slender, unbranched to few-branched and erect to ascending, strigose and spreading-hirsute. Leaves linear to oblanceolate, 5 to 40(50) 1 to 4(5) mm, midribs ridged abaxially, sunken adaxially, tips rounded to obtuse, surfaces ascending to inclined white-hirsute, pustulose throughout. Inflorescences cymules solitary or paired, 1 to 4(6) cm, flowers dense at anthesis, open in fruit, proximal-most flowers usually not touching; bracts occasionally 1 to few at base, linear, lanceolate, or oblanceolate; pedicels not elongating in fruit, < 0.5 mm. Flowers ascending; calyces deciduous at maturity, symmetric, narrowly ovoid, 1.5 to 2 mm at anthesis, 2.5 to 3.5(4) mm in fruit, lobes separate to base, lanceolate, margins densely ascending finely white-hirsute, midribs slightly thickened, pustulose-hispid, tips usually connivent, abaxial surfaces appressed- to ascending-hirsute, adaxial surfaces basally glabrous, apically appressed short-hirsute; corollas usually funnelform, tubes 1 mm, limbs 0.5 to 1.5 mm in diameter; fornices minute, pale yellow to white; gynobases extending to 70% and styles to 100% length of nutlets; flower bracts usually absent. Fruits (3)4, homomorphic, narrowly lance-ovate, compressed, symmetric, 1.4 to 2 mm, gray-tan or mottled, bases short-truncate, margins sharp-angled to flattened into narrow rim, especially toward tip, tips narrowly acute, surfaces smooth, shiny, abaxial surfaces flattened, spinal ridges absent, adaxial surfaces convexly 2 planed; attachment scars centered, edges abutted or partially overlapping, usually not raised, short bifid-forked at base, areoles absent to very small triangular. Sandy, gravelly, or rocky substrates, banks, shrublands, slopes, coniferous woodlands, meadows. Flowering May to Jul. 600 to 2500 m. BR, BW, Col, ECas, Lava, Owy, Sisk. CA, ID, NV, WA; north to British Columbia, northeast to MT; southeast to CO. Native. Cryptantha watsonii is distinctive in having a small corolla and four (occasionally three) smooth nutlets with sharp-angled to flattened margins, especially toward the tips. (contributed by Mary Ann Machi)

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/07/2023).