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    THIS PAGE IS NO LONGER UPDATED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.

ELAEAGNACEAE

OLEASTER FAMILY

Elizabeth McClintock

Shrub, tree, sometimes ± dioecious, often thorny, generally densely silvery-hairy throughout; hairs often scale-like
Leaves simple, alternate or opposite, generally deciduous, entire; petiole generally short; stipules 0
Inflorescence generally umbel-like, axillary; flowers 1–few
Flower radial; hypanthium rotate to salverform, lower part generally receptacle-like, persistent, with a disk, becoming fleshy; sepals (hypanthium lobes) generally 4, ± petal-like; petals 0; anthers 4 or 8, ± sessile; ovary superior (appearing inferior), chamber 1, style 1
Fruit: achene enclosed in fleshy hypanthium, the whole drupe- or berry-like
Genera in family: 3 genera, ± 45 species: North America, Eur, Asia, e Australia; especially temp, subtropical
Reference: [Graham 1964 J Arnold Arbor 45:274–278]

ELAEAGNUS

Shrub, tree
Leaves alternate
Flower bisexual; hypanthium bell-shaped to salverform, lobes 4; stamens 4, barely exserted; disk flask-shaped, enclosing base of style; stigma ± elongate, on 1 side of style
Species in genus: ± 40 species: North America, s Eur, Asia
Etymology: (Greek: olive, chaste-tree)

Introduced

E. angustifolia L.

OLEASTER, RUSSIAN OLIVE

Plant < 7 m, sometimes thorny
Leaf 4–8 cm, lanceolate to oblong, more silvery on lower surface
Flower 5–10 mm, ± as wide at top, fragrant; hypanthium ± dark yellow inside, tube ± = lobes
Fruit 10–20 mm, elliptic in outline, yellow
Ecology: Uncommon. Disturbed, sometimes moist places
Elevation: generally < 1500 m.
Bioregional distribution: San Joaquin Valley, San Francisco Bay Area, East of Sierra Nevada, Mojave Desert
Distribution outside California: native to temperate Asia
Flowering time: May–Jun
Cult as ornamental.

previous taxon | next taxon
bioregional map for ELAEAGNUS%20angustifolia being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Elaeagnus angustifolia
Retrieve dichotomous key for Elaeagnus
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