Hydrophyllaceae - Waterleaf Family
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Members of the Hydrophyllaceae family are annual to perennial herbs, or rarely shrubs, with alternate, usually hairy and sometimes glandular-hairy leaves without stipules. The flower cluster is frequently composed of one to several curled smaller clusters, and the flowers are generally blue or purple. They are also bisexual, radially symmetric, and have 5 free sepals and a united corolla with 5 lobes. The five stamens are inserted at the base of the corolla, and usually extend beyond its mouth, the filaments are alternate with the corolla lobes. The pistil has a 1- or 2-celled superior ovary and, generally, a two-forked style. The fruit is a capsule with one to many seeds.
The waterleaf family is a small family, having only about 25 genera and 250 species of wide distribution worldwide, best developed in western U.S. It contains such ornamental genera as Phacelia, Nemophila, and Wiegandia, but is not otherwise particularly important, economically speaking.

 
 
Guide to Identify Presented Species of the Waterleaf Family
FLOWER CLUSTER ON STEM BELOW THE LEAVES
Hydrophyllum capitatum - Ballhead Waterleaf
Perennial, 10-40 cm tall. Thickets, woodlands, and moist, open slopes.
Flowers white to blue, 5-9 mm long, in dense heads well below the leaves.
Leaves mainly basal, up to 10 cm wide, with 7-11 joined to separate leaflets.
FLOWERS IN DENSE TERMINAL CLUSTERS
Phacelia hastata - Silver-leaved Scorpionweed
Perennial up to 50 cm tall, silvery-hairy. Dry, open, often sandy places.
Flowers lavender, 4-7 mm long, many in wide, coiled clusters. Stamens long.
Leaves narrowly elliptic, mostly entire, prominently veined, silvery-hairy.
Alphabetical listing with links to presented species of the Waterleaf family:
     
Scientific Name English Name Swedish Name
 

 

 
Hydrophyllum
Phacelia
Waterleaf
Scorpionweed
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Facelior
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