|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
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 12, placentas 24, axile or parietal), ovary superior to inferior, sometimes more superior in fruit, styles generally 2
Fruit: 2 follicles or 24-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 13:6472]
Rhizome scaly; bulblets 0
Leaves basal, sometimes a few cauline; blade ovate, base cordate to reniform, lobes and teeth shallow, irregular
Inflorescence generally raceme-like; bracts generally scale-like
Flower radial to ± bilateral; hypanthium partly fused to ovary; calyx lobes equal or not; petals 0 or 5, generally equal; stamens 5, generally equal; pistil 1, ovary > half inferior, chamber 1, placentas 2, parietal
Species in genus: 50 species: North America
Etymology: (J.H. von Heucher, German professor of medicine, 16771747)
Reference: [Rosendahl, Butters, & Lakela 1936 Minn Stud Plant Sci 2:1180]
A very difficult genus, highly variable at many levels and needing much additional research.
See the CNPS Inventory for information about endangerment and rarity.
Inflorescence 1825 cm
Flower: part of hypanthium fused to ovary > long side of free part; calyx lobes slightly unequal, generally red-purple; stamens << calyx lobes, equal included
Ecology: Dry, steep, rocky areas
Elevation: 15002000 m.
Bioregional distribution: Peninsular Ranges (Laguna Mtns, San Diego Co.).Otherwise like H. cespitosa. Styles and placentas rarely 3 per flower.