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Taxon  Report  
Cryptantha scoparia  A. Nelson
Gray cryptantha,   Pinyon desert cryptantha
Cryptantha scoparia is an annual herb that is native to California, and also found elsewhere in western North America.
California Rare Plant Rank: 4.3 (limited distribution).
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
Observation Search
(47 records)
yellowone or more occurrences
within a 7.5-minute quadrangle

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

Communities: Sagebrush Scrub, Northern Juniper Woodland, Pinyon-Juniper Woodland
Name Status:
Accepted by JEF + CNPS + PLANTS

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


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[oregonflora.org] Description, Habitat: Plants 5 to 30 cm. Stems primary axis often ill-defined, branches erect to ascending, slender, densely appressed strigose and sometimes sparsely spreading-hirsute. Leaves linear to lanceolate, 10 to 40(50) 1 to 3 mm, tips rounded to obtuse, surfaces appressed- to ascending-hirsute, coarser hairs pustulose, pustules larger on margins and abaxial surfaces. Inflorescences cymules solitary or paired, occasionally crowded, elongating to 5 to 9 cm, proximal-most flowers usually not touching; bracts absent; pedicels 0.5 to 1 mm in fruit. Flowers ascending to usually appressed, usually persistent at maturity; calyces symmetric, cylindric, bases rounded, constricted below tip, 1.5 to 2.5 mm at anthesis, 4 to 6 mm in fruit, lobes separate to base, linear to narrowly lanceolate, one lobe usually longer, margins densely ascending fine-hirsute, midribs thickened, spreading coarse-hirsute proximally, hairs pustule-based, tips erect to slightly recurved, abaxial surfaces ascending white-hirsute, adaxial surfaces glabrous proximally, appressed short-hirsute near tip; corollas rotate to funnelform, tubes 1.5 to 2 mm, limbs 1 to 1.5 mm in diameter; fornices absent; gynobases extending to 75% and styles to 100% length of mature nutlets; flower bracts absent. Fruits 4, homomorphic, lanceolate to lance-ovate, 1.6?2.1 mm, gray with brown mottling, bases truncate, margins somewhat sharp angled at base, tips narrowly acute to acuminate, surfaces minutely tuberculate-spinulose, spinules ascending, sharp-tipped, abaxial surfaces low convex, spinal ridges absent, adaxial surfaces flattened, attachment scars centered, edges not raised, abutted entire length or narrowly gapped proximally, gradually bifid-forked and flare-gapped at extreme base. Sandy, clay, or talus substrate, slopes or flats, shrublands, woodlands. Flowering Jun?Jul. 1200?1600 m. BR, Owy. CA, ID, NV, WA; east to WY. Native. Cryptantha scoparia can be readily identified by its nutlet morphology, the four nutlets per fruit having a distinctive tuberculate-spinulose sculpturing, the spinules ascending and sharp-tipped. (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: 12/05/2023).