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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.


Stem: young stems often ± pendent, slender, ± covered by leaves, hairy or glabrous. Leaf: small, awl- or scale-like, sessile, generally ± clasping stem, generally encrusted with excreted salt. Inflorescence: raceme or compound raceme on current or previous year's twigs; bract generally ± clasping. Flower: sepals 4–5, generally ± united at base, persistent; petals 4–5, free, deciduous to persistent, white, pink, red; stamens 4–5[15], free; nectary disk lobes 4–5[15], alternate or confluent with filaments; styles 3–4. Fruit: valves ± lanceolate. Seed: hairs in tuft at tip, > seed.
± 60 species: Eurasia, Africa. (Latin: Tamaris River, Spain) [Beauchamp et al. 2005 Plant & Soil 275:221–231] Invasive weeds with deep roots, especially along streams, irrigation canals. Most California species originally cultivated for ornamental, windbreaks; some hybridize. Tamarix africana Poir. excluded.
Unabridged references: [Baum 1967 Baileya 15:19–25; Beauchamp et al. 2005 Plant & Soil 275 (1–2):221–231; Di Tomaso 1998 Weed Technology 12:326–336]

Key to Tamarix

1. Leaf united completely around stem (giving stem ± jointed appearance), ± mucronate ..... T. aphylla

1' Leaf ± clasping stem, acute to long-acuminate

2. Sepals, petals, stamens generally 4 ..... T. parviflora

2' Sepals, petals, stamens 5

3. Nectary disk lobes confluent with stamens, sometimes very shallow or ± 0 ..... T. gallica

3' Nectary disk lobes alternate stamens

4. Sepals entire; flowers with 1–2 stamens attached between lobes of nectary disk, 3–4 below nectary disk ..... T. chinensis

4' Sepals minutely dentate; flowers with 5 stamens attached below nectary disk ..... T. ramosissima


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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