Jepson Flora Project: Jepson Interchange    

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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.



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


Alva G. Day

Annual, perennial herb, generally erect
Stem glabrous, hairy, glandular, or cobwebby
Leaves simple, generally alternate; basal generally in rosette, toothed, pinnately lobed, or entire; cauline generally reduced; leaf tips, calyx lobes acute, acuminate, or needle-like
Inflorescence: flowers solitary or clustered, 1–many in axils of bracts
Flower: calyx membranous between ribs, membrane splitting or expanding; corolla > calyx, lobes generally ovate
Fruit generally ovoid; chambers 3, valves separating from top
Seeds 3–many, brown, generally gelatinous when wet
Species in genus: ± 70 species: w North America, South America
Etymology: (Felipe Gil, 18th century Spanish botanist)


G. tenuiflora Benth.

Stem: branches generally several, spreading from below, glabrous or cobwebby or glandular at base
Leaves: basal generally in cluster or rosette, cobwebby on upper surface or in axils or nearly glabrous, 1–2-pinnate, lobes generally linear, spreading, axis linear or strap-shaped
Inflorescence loose or ± clustered; pedicels unequal
Flower: calyx glandular or cobwebby; corolla 3–4 X calyx, tube purple, throat generally tapered, partly or all purple, lobes bright pinkish lavender, white at base; stamens unequal, exserted
Ecology: Sandy coastal or flood plains
Elevation: < 1400 m.
Bioregional distribution: Central Coast, South Coast Ranges, n Channel Islands.


subsp. tenuiflora

Stem 15–40 cm, glabrous or slightly cobwebby; branches spreading from base
Leaves cobwebby in axils; basal in semi-erect cluster, 2–6 cm, 1–2-pinnate, lobes 1–2 mm wide
Inflorescence glandular
Flower: calyx slightly glandular or cobwebby, rib width < membrane; corolla 11–22 mm, tube slender, 1.5–3 X calyx, throat entirely purple or with pale yellow spots, lobes 2–4 mm wide; longest stamens > mid-lobe, < style
Fruit 4–6 mm, generally = calyx
Chromosomes: 2n=18
Ecology: Sand hills, flood plains, dry riverbeds
Elevation: 100–1400 m.
Bioregional distribution: Central Coast, South Coast Ranges
Horticultural information: TRY.

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bioregional map for GILIA%20tenuiflora%20subsp.%20tenuiflora being generated

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