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Lewisia congdonii

Lewisia congdonii (Rydb.) S. Clay  
Family: Montiaceae
Congdon's Bitter-Root
Lewisia congdonii image
  • FNA
  • Resources
Mark A. Hershkovitz & Sean B. Hogan in Flora of North America (vol. 4)
Taproots gradually ramified distally. Stems ± erect, becoming lax with age, 20-60 cm. Leaves: basal leaves withering after anthesis, abruptly or gradually narrowed to broad petiole, blade oblanceolate, 5-25 cm, margins entire, apex acute to obtuse; cauline leaves withering after anthesis, alternate, ± sessile, distalmost intergrading with bracts, reduced, blade lanceolate or linear-lanceolate, 15-125 mm, margins entire, apex acute to obtuse. Inflorescences 3-7-branched paniculate cymes, 20-100-flowered; bracts alternate proximally, 2 at each flowering node distally, ovate to orbiculate, 10-20 mm, margins glandular-toothed, apex acute proximally to rounded distally. Flowers pedicellate, not disarticulate in fruit; sepals 2, suborbiculate to broadly obovate, 2-4 mm, herbaceous at anthesis, margins glandular-toothed, apex truncate to rounded; petals 6-7, pale pink, veins magenta, base yellow-green, obovate, 7.5-10 mm; stamens 4-5; stigmas 3; pedicel 5-10 mm. Capsules 3-4 mm. Seeds 2 mm, shiny. 2n = ca. 24.

Flowering spring. Shaded, mossy, rocky slopes; of conservation concern; 500-2100 m; Calif.

Lewisia congdonii is found only in Mariposa County, California.

Lewisia congdonii
Open Interactive Map
Lewisia congdonii image
Lewisia congdonii image
Lewisia congdonii image
Lewisia congdonii image
Lewisia congdonii image
Lewisia congdonii image
Lewisia congdonii image
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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