Polemoniaceae - Phlox Family
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Polemoniaceae, the phlox family are mostly perennial or annual herbs or subshrubs with simple leaves (rarely compound). The flowers are perfect, five-merous and regular. Petals are fused to form a flat and round, or bell-shaped or funnel-shaped corolla. The 5 stamens are fused to the corolla tube and alternate with the 5 corolla lobes. The fruit is derived from a superior 3-celled ovary and at maturity becomes a 3-celled capsule.
The leaves are alternate or opposite, simple or compound.
Phlox and Gilia are common in western forest and steppe communities and are also used in cultivated flower beds.
This is a quite small family of about 20 genera and 300 species worldwide, mostly temperate perennials, many in Western U.S.

 
 
Guide to Identify Presented Species of the Phlox Family
LEAVES ALTERNATE, ENTIRE OR TOOTHED
Collomia debilis - Alpine Mountain-trumpet
Perennial, 10-20 cm tall, with many creeping stems. Rocky mountain slopes.
Flowers pinkish to white, 2-3 cm long, trumpet-shaped with long tube.
Leaves crowded toward the top of the stem, up to 3 cm long and 13 mm wide.
LEAVES ALTERNATE, PINNATELY DIVIDED INTO FEW NARROW SEGMENTS
Ipomopsis spicata - Spiked Gilia
Perennial, 5-30 cm tall, thinly cobwebby-woolly-hairy. Dry, open places.
Flowers white, about 1 cm long, numerous in a dense, rounded top cluster.
Leaves 3-parted or pinnatifid, 1-6 cm long, with very narrow segments.
LEAVES ALTERNATE, PINNATELY DIVIDED INTO MANY SHORT SEGMENTS
Polemonium viscosum - Sticky Jacob's Ladder
Perennial up to 20 cm tall, sticky glandular-hairy. Rocky places, mountains.
Flowers blue, funnel-shaped, 17-25 mm long, longer than wide.
Leaves mainly basal, with numerous small leaflets that are 2- to 5-cleft to base.
LEAVES OPPOSITE, NARROW AND OFTEN VERY SMALL
Phlox albomarginata - White-edged Phlox
Cushioned perennial, up to 5 cm tall, glandular. Rocky places, high mountains.
Flowers white, 15-20 mm wide, solitary on stem tips. Style 5-8 mm long.
Leaves broadly lanceolate, 2-7 mm long and 1-2.5 mm wide, thick-edged.
Phlox longifolia - Long-leaved Phlox
Perennial, 10-40 cm tall, often woody at the base. Dry, open rocky places.
Flowers white, 2-3 cm wide, in clusters. The style is 6-15 mm long.
Leaves linear, mostly 1.5-8 cm long and 1-3 mm wide.
Phlox multiflora - Rocky Mountain Phlox
Mat-forming perennial, loosely almost erect, up to 10 cm tall. Mountains.
Flowers white, about 2 cm wide, few on stem tips. The style is 5.5-8 mm long.
Leaves slightly rough-surfaced, linear, 12-30 mm long and 1-2 mm wide.
Alphabetical listing with links to presented species of the Phlox family:
     
Scientific Name English Name Swedish Name
 

 

 
Collomia
Ipomopsis
Phlox
Polemonium
Mountain-trumpet
Gilia
Phlox
Jacob's Ladder
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