Burke: Crepis tectorum vs. Crepis runcinata

	Crepis tectorum	Crepis runcinata
	annual hawksbeard, narrow leaf hawksbeard, rooftop hawksbeard	dandelion hawksbeard, meadow hawksbeard
Habit	Glabrous annual, 1-10 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.
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.
Fruits	Achenes 2.5-4.5 mm. long, dark reddish-brown, spindle-shaped, with 10 ribs.

	Crepis tectorum	Crepis runcinata
Flowering time	June-August	May-July
Habitat	Roadsides, fields, ditches, wastelots, and other disturbed, open areas.	Moist to dry meadows, marshes, seeps, shores, riverbanks, often where alkaline, from the lowlands 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 Washington; southeastern British Columbia to California, east to the Great Plains. [WildflowerSearch map] [BONAP county map]
Origin	Introduced from Europe	Native
Conservation status	Not of concern	Not of concern
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. bakeri, C. barbigera, C. capillaris, C. intermedia, C. modocensis, C. nicaeensis, C. occidentalis, C. setosa, C. tectorum
Subordinate taxa		C. runcinata ssp. runcinata
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: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Crepis runcinata

annual hawksbeard, narrow leaf hawksbeard, rooftop hawksbeard

dandelion hawksbeard, meadow hawksbeard

Habit

Glabrous annual, 1-10 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.

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.

Fruits

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

Crepis tectorum

Crepis runcinata

Flowering time

June-August

May-July

Habitat

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

Moist to dry meadows, marshes, seeps, shores, riverbanks, often where alkaline, from the lowlands 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]