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TAMARICACEAE TAMARISK FAMILY

John F. Gaskin

Shrub, tree, much-branched.
Stem: trunk bark rough.
Leaf: alternate, sessile, entire, often scale-like, generally with salt-excreting glands.
Inflorescence: [ spike], raceme, compound raceme, [ flowers 1]; bracts scale-like.
Flower: sepals 4–5, generally free, overlapping; petals 4–5, free, overlapping, generally attached below nectary; stamens 4–5[many], attached below or to nectary; ovary superior, 1-chambered, placentas basal or parietal, intrusive (simulating chambers) or not, ovules 2–many; styles [0,2]3–4[5].
Fruit: capsule, loculicidal.
Seed: many, hairy.
± 4 genera, 80 species: Eurasia, Africa. [Gaskin 2003 Ann Missouri Bot Gard 90:109–118] Often in saline habitats. —Scientific Editor: Thomas J. Rosatti.

TAMARIX TAMARISK, SALTCEDAR

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 yr'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 CA 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

T. aphylla (L.) H. Karst. ATHEL
NATURALIZED
Large shrub or tree, < 25 m.
Leaf: united completely around stem (giving stem ± jointed appearance), ± 2 mm, ± mucronate.
Inflorescence:raceme 2–6 cm; bract triangular, acuminate.
Flower: sepals 5, 1–1.5 mm, ± round, tip obtuse, entire; petals 5, 2–2.5 mm, oblong to elliptic; stamens 5, alternate nectary disk lobes.
Uncommon. Washes, roadsides; < 200 m. e South Coast, Desert; to Utah, Texas, n Mexico; native w India to n&w Africa. Hybridizes with Tamarix ramosissima, Tamarix chinensis (rarely). May–Nov {Weed listed by BAEDN and Cal-IPCI} [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [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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Bioregions in which taxon occursRed area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon;
markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may have georeferencing or identification issues.
map of distribution 1

Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes Manual flowering time.