Jepson Flora Project: Jepson Interchange    

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

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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LINANTHUS

Robert W. Patterson

Annual, perennial herb
Stem generally erect, generally branched from base
Leaves cauline, opposite, entire or palmately 3–9-lobed; lobes linear to narrowly lanceolate or spoon-shaped
Inflorescence head-like, open, or flower solitary; bracts leaf-like; flowers sessile or pedicelled
Flower: calyx tubular, or lobes nearly free, bordered by translucent membrane; corolla funnel-shaped, salverform, or bell-shaped; stamens attached at same level, pollen yellow
Species in genus: 41 species: w North America, Chile
Etymology: (Greek: flax flower)
Reference: [Patterson 1977 Madroño 24:36–48]

Native

L. pachyphyllus R. Patt.

Perennial, hairy
Stem 10–20 cm
Leaf: lobes generally 5, 10–16 mm, linear
Inflorescence: cluster, terminal, bracted; flowers generally sessile
Flower: calyx 9–10 mm, densely hairy, membrane generally obscure, 1/2 calyx length; corolla funnel-shaped, tube 12–15 mm, white or pale yellow, throat yellow, lobes 6–9 mm, white; stamens generally exserted; stigmas slightly exserted
Chromosomes: 2n=36
Ecology: Open, wooded areas
Elevation: 1700–2500 m.
Bioregional distribution: High Sierra Nevada, East of Sierra Nevada.Generally self-pollinated. Distinguished from L. nuttallii by generally larger features, chromosome number
Recent taxonomic note: *Leptosiphon pachyphyllus (R. Patt.) J.M. Porter & L.A. Johnson
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