Burke: Crepis tectorum vs. Crepis bakeri

	Crepis tectorum	Crepis bakeri
	annual hawksbeard, narrow leaf hawksbeard, rooftop hawksbeard	Baker's hawksbeard
Habit	Glabrous annual, 1-10 dm. tall, with milky juice.	Perennial with 1-3 stout stems from a tap-root, 1-3 dm. tall, with milky juice.
Leaves	Basal leaves petiolate, the blade lanceolate or oblanceolate, finely toothed to pinnately parted, up to 15 cm. long and 4 cm. wide; reduced cauline leaves sessile and auriculate, linear, often involute.	Leaves covered with short, often glandular hairs; basal and lower cauline leaves 1-2 dm. long, pinnatifid with dentate segments, the mid-rib strongly reddish; upper leaves few and reduced.
Flowers	Heads several to numerous, 30-70 flowered; involucre 6-9 mm. high, its inner bracts 12-15, with fine hairs and sometimes with stalked glands as well, the outer bracts about one-third as long; corollas all ligulate, yellow.	Heads 2-22, on stout peduncles which are expanded toward the apex, 11-40 flowered; involucre 14-21 mm. high, lightly white-woolly and strongly glandular on short, stiff, pointed hairs; longer inner bracts 8-14; corollas ligulate, yellow, about 2 cm. long.
Fruits	Achenes 2.5-4.5 mm. long, dark reddish-brown, spindle-shaped, with 10 ribs.	Achenes brown or yellowish, narrowed above.

	Crepis tectorum	Crepis bakeri
Flowering time	June-August	May-July
Habitat	Roadsides, fields, ditches, wastelots, and other disturbed, open areas.	Dry slopes, sagebrush, and forest openings from the foothills to middle elevations in the mountains.
Distribution	Occurring in scattered locations on both sides of the Cascades crest in Washington; Alaska to California, east across the northern regions of the U.S. and Canada to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in central Washington; central Washington to California. [WildflowerSearch map] [BONAP county map]
Origin	Introduced from Europe	Native
Conservation status	Not of concern	Endangered in Washington (WANHP)
Sibling taxa	C. acuminata, C. atribarba, C. bakeri, C. barbigera, C. capillaris, C. intermedia, C. modocensis, C. nicaeensis, C. occidentalis, C. runcinata, C. setosa	C. acuminata, C. atribarba, C. barbigera, C. capillaris, C. intermedia, C. modocensis, C. nicaeensis, C. occidentalis, C. runcinata, C. setosa, C. tectorum
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Crepis bakeri

annual hawksbeard, narrow leaf hawksbeard, rooftop hawksbeard

Baker's hawksbeard

Habit

Glabrous annual, 1-10 dm. tall, with milky juice.

Perennial with 1-3 stout stems from a tap-root, 1-3 dm. tall, with milky juice.

Leaves

Basal leaves petiolate, the blade lanceolate or oblanceolate, finely toothed to pinnately parted, up to 15 cm. long and 4 cm. wide; reduced cauline leaves sessile and auriculate, linear, often involute.

Leaves covered with short, often glandular hairs;

basal and lower cauline leaves 1-2 dm. long, pinnatifid with dentate segments, the mid-rib strongly reddish; upper leaves few and reduced.

Flowers

Heads several to numerous, 30-70 flowered;

involucre 6-9 mm. high, its inner bracts 12-15, with fine hairs and sometimes with stalked glands as well, the outer bracts about one-third as long;

corollas all ligulate, yellow.

Heads 2-22, on stout peduncles which are expanded toward the apex, 11-40 flowered;

involucre 14-21 mm. high, lightly white-woolly and strongly glandular on short, stiff, pointed hairs; longer inner bracts 8-14;

corollas ligulate, yellow, about 2 cm. long.

Fruits

Achenes 2.5-4.5 mm. long, dark reddish-brown, spindle-shaped, with 10 ribs.

Achenes brown or yellowish, narrowed above.

Crepis tectorum

Crepis bakeri

Flowering time

June-August

May-July

Habitat

Roadsides, fields, ditches, wastelots, and other disturbed, open areas.

Dry slopes, sagebrush, and forest openings from the foothills to middle elevations in the mountains.

Distribution

Occurring in scattered locations on both sides of the Cascades crest in Washington; Alaska to California, east across the northern regions of the U.S. and Canada to the Atlantic Coast.

[WildflowerSearch map]

[BONAP county map]