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

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



David J. Keil, Family Editor and author, except as specified

Annual to tree
Leaves basal or cauline, alternate to whorled, simple to compound
Inflorescence: 1° inflorescence a head, each resembling a flower, 1–many, generally arrayed in cymes, generally subtended by ± calyx-like involucre; flowers 1–many per head
Flowers bisexual, unisexual, or sterile, ± small, of several types; calyx 0 or modified into pappus of bristles, scales, or awns, which is generally persistent in fruit; corolla radial or bilateral (rarely 0), lobes generally (0)4–5; stamens 4–5, anthers generally fused into cylinder around style, often appendaged at tips, bases, or both, filaments generally free, generally attached to corolla near throat; pistil 1, ovary inferior, 1-chambered, 1-seeded, style 1, branches 2, generally hair-tufted at tip, stigmas 2, generally on inside of style branches
Fruit: achene, cylindric to ovoid, generally deciduous with pappus attached
Genera in family: ± 1300 genera, 21,000 species (largest family of dicots): worldwide. Largest family in CA. Also see tribal key to CA genera: Strother 1997 Madroño 44(1):1–28. See glossary p. 25 for illustrations of general family characteristics.



Theodore M. Barkley

Shrubs or small trees generally < 3 m, broom-like
Leaves alternate, entire, thread- to needle- or scale-like
Inflorescence: heads discoid, in panicle-like clusters at branch tips; involucre cylindric to obconic; phyllaries overlapping; receptacle naked
Ray flowers 0
Disk flowers 4–17; corollas yellow, tube long, throat abruptly wider, lobes long; anther bases sagittate to tailed, tips ± lanceolate; style branches long, tips conic or hair-tufted
Fruit ± fusiform; pappus many bristles in 3–4 series
Species in genus: 3 species: w North America
Etymology: (Greek: scale-broom)
Reference: [Strother 1978 North America Fl II 10:171–173]


L. squamatum (A. Gray) A. Gray

Plant spreading, round-topped, woolly, soon becoming glabrous
Leaves of flower-stems 2–3 mm, scale-like, appressed; axils often woolly-tufted
Inflorescence: heads 1–5; main inner phyllaries 7–23, 4–7 mm, outer grading into subtending scale-like bracts
Flowers generally 9–17; corollas yellow
Fruit 3.5–5 mm, 10–15-veined, ± glabrous; pappus bristles 5–8 mm, whitish brown
Chromosomes: 2n=±90
Ecology: Sandy or gravelly washes, stream terraces
Elevation: < 1800 m.
Bioregional distribution: Sierra Nevada Foothills, South Coast Ranges, Southwestern California, Desert
Distribution outside California: Baja California
Flowering time: Aug–Oct
Synonyms: var. palmeri (A. Gray) L.C. Wheeler
Apparently TOXIC but unpalatable
Horticultural information: DRN, SUN: 7, 8, 9, 10, 11, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24.

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bioregional map for LEPIDOSPARTUM%20squamatum being generated
N.B. The distribution depicted here differs from that given in The Jepson Manual (1993)

Retrieve Jepson Interchange Index to Plant Names entry for Lepidospartum squamatum
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