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MOLLUGINACEAE CARPET-WEED FAMILY

Michael A. Vincent & Wayne R. Ferren, Jr.

Annual [ perennial herb, shrub], glabrous or hairy.
Stem: prostrate to erect.
Leaf: simple, generally basal and cauline, alternate, opposite, or whorled, entire, ( fleshy), petioled [not]; stipules 0 or small, deciduous.
Inflorescence: axillary or terminal cyme [ umbel] or flowers 1; flowers pedicelled or not.
Flower: generally bisexual, small, radial; sepals 4–5, free or fused, persistent; corolla 0 or small (= staminodes); stamens 2–25, free or fused basally, on hypanthium, alternate sepals, petal-like or not; nectary a ring; ovary superior, chambers [1]3–5[10], placentas generally axile, styles [0]1 or 3–5, generally free.
Fruit: 3–5-valved capsule [ achene].
Seed: 1 or more per chamber, reniform to lenticular, arilled or not.
14 genera, 125 species: generally tropics, subtrop, especially Africa. [Boetsch 2002 Castanea 67:42–53] —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Boetsch, J. R. 2002. The Aizoaceae and Molluginaceae of the southeastern United States. Castanea 67: 42–53.]

Key to Molluginaceae

MOLLUGO CARPET-WEED
Annual [per], glabrous.
Stem: prostrate to erect, slender, branched from base.
Leaf: generally whorled, linear to oblanceolate; stipules ± 0.
Inflorescence: axillary, terminal, cyme, umbel [ flowers 1]; pedicel 3–30 mm.
Flower: sepals 5, free, margins ± scarious; petals 0; stamens 3–5, fused basally; styles 3–5, linear.
Fruit: 3-valved, included in calyx.
Seed: many, reniform, smooth, ridged, or finely net-sculptured; aril 0.
35 species: tropics, subtrop. (Greek: soft or pliant) Worldwide revision of genus needed.

Key to Mollugo

M. verticillata L.
NATURALIZED
Annual, mat-forming, < 50 cm diam, glabrous.
Stem: forked unequally.
Leaf: in whorls of 3–8, 5–40 mm.
Inflorescence: flowers 2–6.
Flower: sepals 1.5–2.5 mm, oblong- elliptic; stamens 3 mm; stigmas 3, ± sessile.
Fruit: ovoid- ellipsoid.
Seed: dark- or red-brown.
2n=64. Common. Moist, exposed, disturbed wetland margins, roadsides, fields; < 1000 m. California Floristic Province, East of Sierra Nevada; North America; native to tropical America. May–Nov [Online Interchange]
Unabridged note: There are Consortium records that, if verified, would voucher elevations up to 1590 m. The following accessions, if verified, would represent range extensions (as indicated): UC7697, UC7700 (MP).

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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 occurs 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 provide evidence for eFlora range revision or 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.
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

 

CCH collections by month

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