Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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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. latisquamum S. Watson

Plant narrow
Stems striate; ribs glabrous, grooves felted-tomentose
Leaves of flower-stems generally 20–30 mm, thread- or needle-like, short-hairy or becoming glabrous
Inflorescence: heads 3–5; main inner phyllaries 3–5, 6–8 mm, outer grading into subtending bracts
Flowers generally 5; corollas pale yellow
Fruit 5–6.5 mm, 5-veined, ± long-white-hairy between veins; pappus bristles < 11 mm, white to brownish
Chromosomes: 2n=60
Ecology: Sandy or gravelly pine/juniper woodlands, open scrub
Elevation: 1400–1500 m.
Bioregional distribution: San Gabriel Mountains (n slope), White and Inyo Mountains, Desert Mountains
Distribution outside California: to Utah
Flowering time: Jun–Oct
Horticultural information: DRN, SUN: 7, 8, 9, 10, 11, 14, 19, 20, 21, 22, 23, 24.

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bioregional map for LEPIDOSPARTUM%20latisquamum being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Lepidospartum latisquamum
Retrieve dichotomous key for Lepidospartum
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