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    THIS PAGE IS NO LONGER UPDATED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.

HORKELIELLA

Barbara Ertter

Perennial, tufted, ± glandular; odor ± resinous
Stem ascending to erect, 15–50 cm
Leaves generally basal, odd-pinnately compound; leaflets many, ± overlapped, toothed to palmately divided, segments ± oblanceolate
Inflorescence: ± cyme; pedicels straight
Flower: hypanthium cup-like, flat-bottomed; bractlets 5; sepals 5, often reflexed; petals 5, white or pinkish, midvein often reddish; stamens 20, filaments ± flat, often an erect tube; pistils many, ovaries superior, style jointed below fruit tip, ± rough, thick
Fruit: achene, ± 1.5 mm
Species in genus: 2 species: CA
Etymology: (Latin: small Horkelia )
Fl ± like that of Horkelia.

previous taxon | next taxon
bioregional map for HORKELIELLA being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Horkeliella
Retrieve dichotomous key for Horkeliella
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