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
For up-to-date information about California vascular plants, visit the Jepson eFlora.

CHENOPODIACEAE

GOOSEFOOT FAMILY

Dieter H. Wilken, except as specified

Annual to tree, sometimes monoecious or dioecious, glandular or with bead-like hairs that collapse with age, becoming scaly or powdery
Stem often fleshy
Leaves generally alternate, entire to lobed; veins generally pinnate
Inflorescence: raceme, spike, catkin-like, or spheric cluster, or flower 1; bracts 0–few
Flower: sepals 1–5, often 0 in pistillate flowers, free or fused, generally persistent in fruit; petals 0; stamens 0–5; ovary generally superior, chamber 1, ovule 1, styles 1–3
Fruit: generally utricle
Seed 1, vertical (fruit compressed side-to-side) or horizontal (fruit compressed top-to-bottom)
Genera in family: 100 genera, 1300 species: worldwide, especially deserts, saline or alkaline soils; some cultivated for food (Beta , beets, chard; Chenopodium , quinoa)
Recent taxonomic note: Recently treated in expanded Amaranthaceae

SALSOLA

Annual to subshrub
Stem simple to much-branched
Leaves generally reduced upward, thread-like to subcylindric, generally becoming thick, ridged, spine-tipped
Inflorescence axillary; bracts 1–2; flowers generally 1 per axil
Flower bisexual; sepals 4–5, in fruit thickened, persistent, generally tubercled to winged; stamens generally 5, exserted, style branches generally 2, exserted
Fruit spheric to obovoid; top ± depressed
Seed generally horizontal
Species in genus: ± 100 species: ± worldwide
Etymology: (Latin: salty, from habitats)

Introduced

S. tragus L.

RUSSIAN THISTLE, TUMBLEWEED

Annual < 1 m, generally rounded, glabrous to short-stiff-hairy
Stem generally much-branched, in fruit deciduous at base
Leaf 8–52 mm, thread-like, becoming rigid; base becoming wide, leathery, tip sharp-pointed to spiny, margin at base translucent
Inflorescence: bract subcylindric, spiny
Flower: calyx 2.5–3 mm, wings in fruit 0.5–2.5 mm, generally minutely toothed to crenate
Ecology: Common. Disturbed places
Elevation: < 2700 m.
Bioregional distribution: California
Distribution outside California: to e N.America, Mexico; native to Eurasia
Flowering time: Jul–Oct
Synonyms: S. australis R. Br.; S. iberica Sennen & Pau; S. kali L. var. tenuifolia Tausch. all misapplied
Weedy.

previous taxon | next taxon
bioregional map for SALSOLA%20tragus being generated
 
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).

Retrieve Jepson Interchange Index to Plant Names entry for Salsola tragus
Retrieve dichotomous key for Salsola
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
    FEEDBACK
  • This page is no longer being maintained.


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