Common Name: FLAX FAMILY Habit: Annual, perennial herb [shrub, tree, vine]. Stem: generally erect [climbing], branched, glabrous to hairy. Leaf: cauline, alternate to opposite or whorled, simple, generally sessile, linear to obovate, entire to minutely toothed or ciliate, teeth occasionally gland-tipped; stipules small, dark-colored, spheric glands, or 0. Inflorescence: raceme, panicle, or cyme [spike]. Flower: bisexual, radial; sepals [4]5, free; petals = sepals in number, free to adherent (basally fused); stamens 5[4 or 10], alternate petals, filaments fused basally into a cup-like structure surrounding ovary base; staminodes present, alt stamens at cup rim, or 0; ovary superior, carpels 2--5, fused, styles 2--5, = carpel number, free or partly fused. Fruit: capsule, generally dehiscent [drupe in some tropical species], generally 10-seeded. Genera In Family: 13 genera, +- 250 species: cosmopolitan, most temperate, some cultivated. Note:Hesperolinon, Sclerolinon are evolutionary lineages within Linum. eFlora Treatment Author: Adam C. Schneider, William A. Freyman, and Joshua R. McDill
Etymology: (Greek, Latin: hard flax, for hard, generally indehiscent fruit) Note: Closely related to Hesperolinon. eFlora Treatment Author: Joshua R. McDill Reference: [Rogers 1966 Madroño 18:181--184]
Sclerolinon digynum (A. Gray) C.M. Rogers
NATIVE Habit: Annual. Stem: erect, glabrous. Leaf: opposite, 5--16 mm, oblong to elliptic, proximal generally entire, distal generally serrate; stipule glands 0. Inflorescence: cyme; bracts generally serrate. Flower: sepals unequal, margins gland-toothed; petals 5, yellow, appendages 0; staminodes 0; carpels 2, ovary chambers 4, styles 2, free, +- 1 mm; stigma > style in width, head-like. Fruit: capsule surface rough; indehiscent or breaking into 4 closed, 1-seeded segments in age. Seed: +- 1 mm, +- 3-sided in ×-section, tip acute. Ecology: Generally vernally moist meadows; Elevation: 1000--1800 m. Bioregional Distribution: KR, CaR, SN; Distribution Outside California: to Washington, Idaho. Flowering Time: Jun--Aug Jepson eFlora Author: Joshua R. McDill Reference: [Rogers 1966 Madroño 18:181--184] Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Sclerolinon Next taxon: Linderniaceae
Botanical illustration including Sclerolinon digynum
Citation for this treatment: Joshua R. McDill 2012, Sclerolinon digynum, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=43820, accessed on April 24, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 24, 2024.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
Data provided by the participants of the
Consortium of California Herbaria.
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Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month
Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).
