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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POLEMONIACEAE

PHLOX FAMILY

Robert W. Patterson, Family Editor

Annual, perennial herb, shrub, vine
Leaves simple or compound, cauline (or most in basal rosette), alternate or opposite; stipules 0
Inflorescence: cymes, heads, or flowers solitary
Flower: calyx generally 5-ribbed, ribs often connected by translucent membranes that are generally torn by growing fruit; corolla generally 5-lobed, radial or bilateral, salverform to bell-shaped, throat often well defined; stamens generally 5, epipetalous, attached at same or different levels, filaments of same or different lengths, pollen white, yellow, blue, or red; ovary superior, chambers generally 3, style 1, stigmas generally 3
Fruit: capsule
Seeds 1–many, gelatinous or not when wet
Genera in family: 19 genera, 320 species: Am, n Eur, n Asia; some cultivated (Cantua, Cobaea (cup-and-saucer vine), Collomia, Gilia, Ipomopsis, Linanthus, Phlox )
Recent taxonomic note: *See also revised taxonomy of Porter and Johnson 2000 Aliso 19(1):55–91; Porter 1998 Aliso 17:83–85
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PHLOX

Robert W. Patterson and Dieter H. Wilken

Annual, perennial herb
Stem prostrate to erect, or tufted to cushion-like
Leaves cauline, opposite, simple, sessile, linear-lanceolate to elliptic, entire
Flower: corolla salverform; stamens attached at different levels, some stamens unequal
Species in genus: ± 60 species: Am, Siberia
Etymology: (Greek: flame, ancient name for Lychnis of Caryophyllaceae)
Reference: [Cronquist, A. 1984. in Intermountain Flora, V.4.]

Native

P. gracilis (Hook.) Greene

Annual; upper parts generally glandular-hairy
Stem decumbent and highly branched to simple and erect, < 20 cm
Leaves opposite (uppermost alternate), 10–30 mm, oblanceolate to lanceolate
Flower: calyx 5–10 mm; corolla tube 8–12 mm, yellowish, lobes 1–2 mm, generally truncate or notched, bright pink to white
Chromosomes: 2n=14
Ecology: Dry to moist areas
Elevation: < 3300 m.
Bioregional distribution: California
Distribution outside California: to British Columbia, Montana, Colorado, Mexico; also in S.America
Flowering time: Mar–Aug
Synonyms: Microsteris g. (Hook.) Greene, including subsp. humilis (Greene) V.E. Grant
Recent taxonomic note: *Microsteris gracilis (Hook.) Greene

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bioregional map for PHLOX%20gracilis being generated
 
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Retrieve Jepson Interchange Index to Plant Names entry for Phlox gracilis
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