Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from 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.

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