Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

VIOLACEAE

VIOLET FAMILY

R. John Little

Annual to shrub or vine (generally per in CA)
Leaves basal, cauline, or both, generally alternate, entire to compound; stipules generally small
Inflorescence: head, raceme, panicle, or flowers solitary; peduncle bractlets 2
Flower generally bisexual, generally bilateral; sepals 5, free to slightly fused, generally persistent; petals 5, free, lowest generally spurred or pouched at base; stamens generally 5, alternate petals, filaments short, wide, anthers surrounding ovary, adherent or fused, often with nectaries at base, often with membranous appendage at tip; ovary superior, chamber 1, placentas 3, parietal, ovules generally many, style 1
Fruit: generally capsule, 3-valved, generally explosively dehiscent
Seeds generally appendaged
Genera in family: 15 genera, 600 species: generally temp, worldwide; some cultivated as ornamental; some Eur species medicinally useful as emetics, diuretics, purgatives
Reference: [Brizicky 1961 J Arnold Arbor 42:321–333]

VIOLA

VIOLET

Annual or perennial herb < 35 cm, glabrous to hairy
Leaf entire to compound
Inflorescence: flower generally solitary, axillary
Flower bilateral; sepals subequal, appendaged at base; petals unequal, lowest spurred or pouched at base, lateral 2 equal, generally spreading, often hairy near base, upper 2 equal, erect; lower 2 stamens with nectaries projecting into spur
Fruit: capsule, ovoid to oblong
Etymology: (Latin: ancient name)
Reference: [Clausen 1964 Madroño 17:173–197]
Cleistogamous flowers generally present. Seeds often dispersed by ants that feed on seed-appendages.

Native

V. tomentosa M.S. Baker & J.C. Clausen

WOOLLY VIOLET

Plant 5–10 cm, white-tomentose
Stem ascending or erect from shallow or deep, woody taproot
Leaves simple, generally elliptic to narrowly ovate; basal petiole 10–60 mm, blade 15–50 mm, (sub)entire; cauline blade 20–40 mm, generally entire
Inflorescence: peduncle 10–40 mm
Flower: petals yellow, lowest (including spur) 6–9 mm, veined dark brown, lateral 2 sometimes with short, dark brown veins near base, short-bearded, upper 2 purple or brown outside
Fruit < 5 mm, hairy
Chromosomes: n=6
Ecology: Dry, gravelly places
Elevation: 1500–2000 m.
Bioregional distribution: north-central High Sierra Nevada.Cleistogamous flowers 0.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for VIOLA%20tomentosa being generated
 


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