Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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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]



Rhizome slender, scaleless, bearing bulblets
Leaves basal and cauline, reduced, sometimes opposite, more deeply lobed upward; blade round, base cordate to reniform, ± lobed, generally toothed
Inflorescence: raceme; bracts scale-like or 0
Flower: hypanthium generally partly fused to ovary; petals generally lobed or toothed; stamens 10; pistil 1, ovary superior to ± inferior, chamber 1, placentas 3, parietal, styles 3
Fruit: capsule, valves 3
Species in genus: 12 species: w North America
Etymology: (Greek: rock hedge, from habitats)
Reference: [Taylor 1965 U Calif Publs Bot 37:1–122]
Generic names ending in "phragma" are considered of neuter, not feminine, gender.


L. heterophyllum (Hook. & Arn.) Torr. & A. Gray

Leaf: basal blade ± 3–5-lobed, teeth generally round
Inflorescence 15–50 cm; flowers 3–12; pedicels 0.5–2 mm; upper bracts often with axillary bulblets
Flower: hypanthium bell-shaped, base truncate, part fused to ovary << free part; petals 5–12 mm, obovate, 3-lobed; ovary superior
Seed spiny
Chromosomes: 2n=14
Ecology: Shaded slopes
Elevation: < 1500 m.
Bioregional distribution: North Coast Ranges, San Francisco Bay Area, South Coast Ranges, w Western Transverse Ranges
Horticultural information: DRN, DRY: 4, 5, 6, 17, 24 &SHD: 7, 9, 14, 15, 16, 18, 19, 20, 21, 22, 23.

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bioregional map for LITHOPHRAGMA%20heterophyllum being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Lithophragma heterophyllum
Retrieve dichotomous key for Lithophragma
Overlay Consortium of California Herbaria specimen data by county on this map
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