Jepson Flora Project: Jepson Interchange    

 
link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

    THIS PAGE IS NO LONGER UPDATED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.

ROSACEAE

ROSE FAMILY

Annual to tree
Leaves simple to pinnately to palmately compound, generally alternate; stipules free to fused, persistent to deciduous
Inflorescence: cyme, raceme, panicle, or flowers solitary
Flower generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, often with bractlets alternate with sepals; sepals generally 5; petals generally 5, free; stamens (0)5–many, pistils (0)1–many, simple or compound; ovary superior to inferior, styles 1–5
Fruit: achene, follicle, drupe, pome, or blackberry- to raspberry-like
Seeds generally 1–5
Genera in family: 110 genera, ± 3000 species: worldwide, especially temp. Many cultivated for ornamental and fruit, especially Cotoneaster , Fragaria , Malus , Prunus , Pyracantha, Rosa , and Rubus
Reference: [Robertson 1974 J Arnold Arbor 55:303–332,344–401,611–662]
Family description, key to genera by Barbara Ertter and Dieter H. Wilken.

ADENOSTOMA

Margriet Wetherwax

Shrub, ± resinous
Stem: bark shredding
Leaves simple, alternate or clustered, evergreen, short-petioled, stipuled or not, ± linear, stiff
Inflorescence: panicle, terminal, 4–15 cm; bracts generally < calyx, ± lanceolate
Flower: hypanthium 1–1.5 mm, ± = sepals, obconic, persistent, enclosing fruit; calyx lobes 1–1.5 mm; corolla lobes ± round, cream to white; stamens 10–15 in clusters alternate petals; ovary superior, chamber 1, ovules 1–2
Fruit: achene
Species in genus: 2 species: CA, Baja CA
Etymology: (Greek: glandular mouth, from hypanthium glands)

Native

A. fasciculatum Hook. & Arn.

CHAMISE

Shrub < 4 m, burled, much-branched
Stem: trunk bark gray-brown; twigs glabrous to hairy
Leaves 4–10 mm, clustered; stipules minute
Inflorescence 4–12 cm, dense; bracts linear to lanceolate, green; pedicels 0
Flower: hypanthium strongly 10-ribbed, throat glandular; corolla lobes ± 1.5 mm; ovary obliquely truncate
Chromosomes: 2n=18
Ecology: Dry slopes, ridges, chaparral
Elevation: < 1600 m.
Bioregional distribution: s North Coast Ranges, Sierra Nevada, Central Western California, Southwestern California
Distribution outside California: Baja California
Plants from sw PR, sw SCo, with ± puberulent twigs, leaves < 6 mm, have been called var. obtusifolium S. Watson
Horticultural information: DRN, SUN, DRY: 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24; CVS: GRCVR.

previous taxon | next taxon
bioregional map for ADENOSTOMA%20fasciculatum being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Adenostoma fasciculatum
Retrieve dichotomous key for Adenostoma
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page
Glossary


University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California