UW Burke Herbarium species comparison

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Hieracium scouleri

Hieracium caespitosum

hound-tongue hawkweed, Scouler's hawkweed

meadow hawkweed, yellow king devil
Habit Perennial herbs with milky juice from a short rhizome with fibrous roots; stems 3-10 dm. tall; herbage bristly below and often glaucous above. Perennial from fibrous roots and long rhizomes, the bristly stems 2-9 dm. tall, with milky juice.
Leaves

Basal and lower cauline leaves 5-20 cm. long and 1-3.5 cm. wide, entire, the short petiole winged;

leaves reduced and becoming sessile upward.

Leaves all basal except for 1 or 2 very small cauline leaves, with long bristles on both sides, oblanceolate-linear, up to 1 dm. long.
Flowers

Achene terete, narrowed toward the base, ribbed.

Heads several in a compact terminal cluster, the corollas all ligulate and bright yellow.

Hieracium scouleri

Hieracium caespitosum
Flowering time June-August June-August
Habitat Mostly dry places in open woods, from foothills to middle elevations in the mountains. Moist pastures, forest openings, roadsides, and springs, from the lowlands to middle elevations in the mountains, usually where disturbed.
Distribution
Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Utah.
[WildflowerSearch map]
[BONAP county map]
Widely distributed on both sides of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho, Montana, and Wyoming; also occurring throughout eastern North America.
[WildflowerSearch map]
[BONAP county map]
Origin Native Introduced from Europe
Conservation status Not of concern Not of concern
Sibling taxa
H. albiflorum, H. aurantiacum, H. caespitosum, H. flagellare, H. ×floribundum, H. glomeratum, H. lachenalii, H. longiberbe, H. maculatum, H. murorum, H. pilosella, H. piloselloides, H. sabaudum, H. ×stoloniflorum, H. triste, H. umbellatum
H. albiflorum, H. aurantiacum, H. flagellare, H. ×floribundum, H. glomeratum, H. lachenalii, H. longiberbe, H. maculatum, H. murorum, H. pilosella, H. piloselloides, H. sabaudum, H. scouleri, H. ×stoloniflorum, H. triste, H. umbellatum
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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