Polemoniaceae : Phlox Family

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• A: Leaves simple (one bladed):
• B: Erect Annual, with alternate leaves: Collomia linearis (Collomia)
• B: Tufted Perennial, with opposite leaves: Phlox
• C: Leaves flat; Flowers up to 1.5-3 cm wide pink to whiteish: Phlox alaskensis (Alaskan Phlox)
• C: Leaves awl-shaped; Flowers about 1-1.5 cm wide, white: Phlox hoodii (Moss Phlox)
• A: Leaves pinnate or pinnately lobed:
• C: Leaves glabrous (hairless); Plants often over 30 cm tall: Polemonium acutiflorum (Tall Jacob's-ladder)
• C: Leaves pubescent (hairy); Plants less than 30 cm tall:
• D: Flowers 15-20 mm long: Polemonium boreale (Northern Jacob's-ladder)
• D: Flowers 8-12 mm long: Polemonium pulcherrimum (Showy Jacob's-ladder)

Collomia

• herbaceous plants.

World= 14 sps.

N.A.= 11 sps.

Yukon= 1 sps.

Central Yukon= 1sp.

Phlox

• Low tufted or matted plants with taproots.
• Perennial
• Leaves simple (one blade), opposite, margins entire (smooth).
• Fruit an ovoid shaped capsule that ruptures the calyx (sepals) at maturity.

World= 61 sps.

N.A.= 60 sps.

Yukon= 2 sps.

Central Yukon= 2sp.

Polemoniuim (Jacob's-ladder)

• Perennial plants
• Herbaceous or sometimes subligneous (almost woody) at the base.
• Leaves alternate and pinnately divided or lobed.
• Flowers different shades of blue.
• Fruit is a few to several seeded capsule enclosed in the calyx (sepals).

World= 23 sps.

N.A.= 20 sps.

Yukon= 3 sps.

Central Yukon= 3sp.