This page is based on the 1993 Jepson Manual.
Please see the Jepson eFlora for up-to-date information about California vascular plants.
|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
Print edition is available from the University of California Press
|The second edition of The Jepson Manual (2012) is available from the University of California Press|
|See also the Jepson eFlora, which parallels the Second Edition|
Stem < 3 m, generally erect; bark generally peeling as thin sheets or narrow strips
Leaves simple, opposite, deciduous or not, ± hairy; stipules 0; blade ± round to narrowly elliptic, entire or toothed
Inflorescence: cyme, raceme, panicle, or flower 1, terminal or axillary, generally bracted
Flower bisexual, radial; sepals 47, free, spreading or erect; petals 47, free, ± round to narrowly elliptic, generally white; stamens 1012 in 2 whorls or many and clustered, filament base linear or wide and flat; pistil 1, ovary superior to 2/3 inferior, chambers 28, ovules 12 or many per chamber, placentas axile or parietal, styles 38, free or fused at base
Fruit: capsule, loculicidal or septicidal; styles persistent or not
Seeds generally many, small to minute
Genera in family: 7 genera, 130 species: temp, subtropical n hemisphere; some cultivated for ornamental (Carpenteria, Deutzia, Philadelphus)
Recent taxonomic note: Recently treated within Hydrangeaceae [Soltis et al. 1995 Amer J Bot 82: 504514]
Species in genus: 1 sp
Etymology: (Lieutenant A.W. Whipple, 18181863, Commander, Pacific Railroad Expedition of 18531854)
Stems: main prostrate, lateral and terminal decumbent to erect; bark gray-brown, peeling as narrow strips
Leaves persistent, ± sessile; blade 1.54 cm, 13 cm wide, ovate to elliptic, coarsely strigose, upper surface hairs ascending, bulbous-based
Inflorescence: cyme or raceme, dense; flowers 412
Flower 46 mm wide, odorless; sepals 46, 1.52 mm, narrowly oblong, ± glabrous; petals 46, 36 mm, obovate, white; stamens 812, ± equal, filament base wide, flat; ovary half-inferior, chambers 45, incomplete, placentas ± axile, ovule 1 per chamber, styles 45, stigma terminal
Fruit depressed-spheric, separating into segments
Seeds 1 per chamber, plump, honeycomb-pitted
Ecology: Slopes, coniferous forest
Elevation: < 1400 m.
Bioregional distribution: Northwestern California, w San Francisco Bay Area (Santa Cruz Mtns), n Outer South Coast Ranges
Distribution outside California: to Washington
Horticultural information: DRN: 4, 5, 6 &SHD, IRR: 7, 14, 15, 16, 17; GRCVR.
|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).|