Common Name: VIOLET FAMILY Habit: Annual, perennial herb, [small shrub, tree, vine], from caudices, taproots, rhizomes, or stolons; hairs 0 or simple. Stem: 0 or prostrate to erect. Leaf: basal, cauline, or both, alternate, [opposite], simple to compound, petioled; stipules generally small; blade linear to round, entire to toothed or lobed. Inflorescence: flowers 1 [raceme], axillary or scapose; peduncle bractlets 2, generally alternate. Flower: bisexual, bilateral [radial]; sepals 5, free, basal lobes present [0], generally not prominent; petals 5, free, lowest often largest, base +- elongated into a spur; stamens 5, alternate petals, filaments short, wide, with large in-pointing hairs, lowest 2 anthers with basal nectaries extending into petal spur; ovary superior, chamber 1, placentas parietal, 3, ovules [1] generally many, style 1, often enlarged distally, stigma often oblique or hooked, hairy or not. Fruit: capsule [berry], 3-valved, loculicidal, explosively dehiscent or not. Seed: generally with outgrowth, attractive to ants. Genera In Family: 23 genera, 830 species: worldwide, generally temperate, tropics (especially higher elevations). Note: Lengths of lowest petal including spur. eFlora Treatment Author: R. John Little Scientific Editor: Thomas J. Rosatti.
Common Name: VIOLET Leaf: generally deciduous. Flower: sepals +- equal, entire; petals unequal, lowest generally largest, with spur generally < 3 [20] mm, lateral 2 equal, generally spreading, upper 2 equal, erect or reflexed, overlapped or not, lateral 2 generally, others sometimes with beard of variously shaped hairs basally; cleistogamous flowers generally present, petals 0. Fruit: ovoid to oblong, hairy or not. Seed: 8--75. Etymology: (Latin: classical name) Note: Important orns including Viola odorata, Viola tricolor L. (Johnny-jump-up, wild pansy), Viola ×wittrockiana Gams (garden pansy). Unabridged Reference: Baker, M.S. 1949a. Studies in western violets. IV. Leafl. West. Bot. 5: 141--147; Baker, M.S. 1949b. Studies in western violets. VI; Madroño 10: 110--128; Baker, M.S. 1957. Brittonia 9: 217--230; Ballard, H.E. 1992. Systematics of Viola Section Viola in North Am north of Mexico. M.S. thesis, Central Michigan University, Mt. Pleasant, Michigan; Ballard, H.E. 1994. Violets of Michigan. Michigan Botanist 33: 131--199; Davidse, G. 1976. A study of some Intermountain violets (Viola Sect. Chamaemelanium). Madroño 23: 274--283; Fabijan et al. 1987. The taxonomy of the Viola nuttallii complex. Can. J. Bot. 65: 2562--2580; Gil-ad, N.L. 1995. Systematics and evolution of Viola L. subsection Boreali-Americanae (W. Becker) Brizicky. Ph.D. dissertation, Univ of Michigan, Ann Arbor, Michigan; Gil-ad, N.L. 1997. Systematics of Viola subsection Boreali-Americanae. Boissiera 53: 1--130; Gil-ad, N.L. 1998. The micromorphologies of seed coats and petal trichomes of the taxa of Viola subsect. Boreali-Americanae (Violaceae) and their utility in discerning orthospecies from hybrids. Brittonia 50: 91--121; Hitchcock, C.L. 1961. Vasc. Pl. Pacific NorthW. Vol. 3; McKinney, L.E. 1992. A taxonomic revision of the acaulescent blue violets (Viola) of North Am. Sida Botanical Miscellany, 7: 1--59; McKinney, L.E. and N. Russell. 2002. Violaceae of the Southeastern United States. Castanea 4: 369--379; Russell, N.H. 1965. Violets (Viola) of the central and eastern United States: an introductory survey. Sida 1: 1--113
Viola sempervirens Greene
NATIVE Habit: Perennial herb, with stolon-like stems, glabrous or with scattered bristles on 1 or both leaf surfaces. Stem: prostrate, 1--several from current and/or previous year's growth, leafy, +- woody in age, often forming rosettes near tip; rooted rosettes generally form vertical, rhizomatous caudex that produces new stems. Leaf: simple, evergreen; basal 1--5 per caudex, petiole 2--16 cm, blade 1--4.5 cm, 2--3.9 cm wide, ovate to round, often purple-spotted on 1 or both surfaces, crenate, base cordate to truncate, tip blunt to obtuse; cauline petiole 0.3--3 cm, blade 1.2--2.2 cm, 1.2--2 cm, +- like basal. Inflorescence: axillary; peduncle 5--10 cm. Flower: sepals lanceolate, often purple-streaked or spotted, not ciliate; petals lemon-yellow, lower 3 veined brown-purple, lateral 2 bearded with cylindric hairs, lowest 8--17 mm. Fruit: 6--7 mm, ovoid, tan, glabrous. Seed: +- 2 mm, brown, tinged purple. Chromosomes: 2n=24,48. Ecology: Shady areas in coastal forest; Elevation: 5--1400 m. Bioregional Distribution: NW, CW; Distribution Outside California: to Alaska, Idaho. Flowering Time: Jan--Jul Synonyms: Viola sempervirens subsp. orbiculoides M.S. Baker; Viola sarmentosa Douglas, illeg. Unabridged Note: In Oregon, Washington, in Douglas-fir and other forests, sometimes carpets ground. Jepson eFlora Author: R. John Little Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Viola purpurea subsp. venosa Next taxon: Viola sheltonii
Botanical illustration including Viola sempervirens
Citation for this treatment: R. John Little 2012, Viola sempervirens, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=48307, accessed on April 18, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 18, 2024.
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