TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.

    THIS PAGE IS NO LONGER UPDATED
    AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

SAXIFRAGACEAE

SAXIFRAGE FAMILY

Patrick E. Elvander

Perennial or subshrub from caudex or rhizome, generally ± hairy
Stem often ± leafy on lower half, rarely trailing and leafy throughout
Leaves generally simple, basal or sometimes cauline, generally alternate, generally petioled; veins ± palmate
Inflorescence: panicle, generally ± scapose
Flower generally bisexual, generally radial; hypanthium free to ± fused to ovary; calyx lobes generally 5; petals generally 5, free, generally clawed, generally white; stamens generally 5 or 10; pistils 2 and simple or 1 and compound (chambers 1–2, placentas 2–4, axile or parietal), ovary superior to inferior, sometimes more superior in fruit, styles generally 2
Fruit: 2 follicles or 2–4-valved capsule
Seeds generally many, small
Genera in family: 40 genera, 600 species: especially n temp, arctic, alpine; some cultivated (Bergenia , Darmera , Heuchera , Saxifraga , Tellima , Tolmiea )
Reference: [Soltis 1988 Syst Bot 13:64–72]

BOYKINIA

Plant glandular; rhizome scaly; bulblets 0
Leaves basal and cauline, reduced and merging into bracts upward; stipules inconspicuous to leaf-like; blade round to ovate, base cordate to reniform, sometimes truncate, obtuse, or tapered, primary lobes 3–many, very shallow to deep, teeth sharp-tipped
Inflorescence generally 1-sided; bracts sessile to short-petioled, lower leaf-like
Flower: hypanthium partly fused to ovary; petals ephemeral; stamens 5; pistil 1, ovary > half inferior, chambers 2, placentas 2, axile
Fruit: capsule
Species in genus: 8 species: North America, Asia
Etymology: (Dr. S. Boykin, Georgian naturalist, 1786–1848)
Reference: [Gornall & Bohm 1985 Bot J Linn Soc 90:1–71]

Native

B. occidentalis Torr. & A. Gray


Leaf 6–45 cm; stipules slight expansion of petiole base, generally green, brown-bristled; petiole 3–30 cm; blade < 12 cm wide, divided ± 1/4–1/3 way to base, lobes and teeth ± round-sided
Inflorescence 3–6 dm, tapered, ± open
Flower: calyx lobes 1–3 mm, triangular, tapered; petals 3–4 mm, obovate
Chromosomes: 2n=14
Ecology: Shady wet banks
Elevation: < 1500 m.
Bioregional distribution: Northwestern California, n&c Sierra Nevada Foothills, Central Western California, Western Transverse Ranges
Distribution outside California: to British Columbia
Synonyms: B. elata (Nutt.) Greene
Horticultural information: WET, DRN: 4, 5, 17 &SHD: 2, 3, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.

previous taxon | next taxon
bioregional map for BOYKINIA%20occidentalis being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Boykinia occidentalis
Retrieve dichotomous key for Boykinia
Return to treatment index page
Glossary
University & Jepson Herbaria Home Page | Copyright © by the Regents of the University of California