Burke: Pyrrocoma crocea vs. Pyrrocoma hirta

	Pyrrocoma crocea	Pyrrocoma hirta
		hairy goldenweed, sticky goldenweed
Habit		Herbaceous perennial from a taproot, the stems several 1-4 dm. high, decumbent at the base; herbage white-woolly with flattened hairs, becoming glandular in the inflorescence.
Leaves		Leaves sharply and irregularly toothed, the basal tufted and petiolate, 3-20 cm. long and 6-40 mm. wide; cauline leaves reduced upward and becoming sessile.
Flowers		Heads usually several, hemispheric, the inflorescence becoming elongate; involucre 9-15 mm. high, the bracts little imbricate, green-tipped; disk flowers numerous, yellow; ray flowers 13-30, 6-12 mm. long, yellow; pappus of whitish, unequal, capillary bristles
Fruits		Achenes elongate.

	Pyrrocoma crocea	Pyrrocoma hirta
Flowering time		July-August
Habitat		Meadows and open or sparsely wooded slopes in the foothills to middle elevations in the mountains.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in central Washington; central Washington, the mountains of northeast Oregon and adjacent Idaho, south to northeast California. [WildflowerSearch map] [BONAP county map]
Origin		Native
Conservation status		Review Group 1 in Washington (WANHP)
Sibling taxa	P. carthamoides, P. hirta, P. liatriformis, P. scaberula	P. carthamoides, P. liatriformis, P. scaberula
Subordinate taxa		P. hirta var. sonchifolia
Web links	Local Web sites: 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

Pyrrocoma crocea

Pyrrocoma hirta

hairy goldenweed, sticky goldenweed

Habit

Herbaceous perennial from a taproot, the stems several 1-4 dm. high, decumbent at the base; herbage white-woolly with flattened hairs, becoming glandular in the inflorescence.

Leaves

Leaves sharply and irregularly toothed, the basal tufted and petiolate, 3-20 cm. long and 6-40 mm. wide;

cauline leaves reduced upward and becoming sessile.

Flowers

Heads usually several, hemispheric, the inflorescence becoming elongate;

involucre 9-15 mm. high, the bracts little imbricate, green-tipped;

disk flowers numerous, yellow;

ray flowers 13-30, 6-12 mm. long, yellow;

pappus of whitish, unequal, capillary bristles

Fruits

Achenes elongate.

Pyrrocoma crocea

Pyrrocoma hirta

Flowering time

July-August

Habitat

Meadows and open or sparsely wooded slopes in the foothills to middle elevations in the mountains.

Distribution

[WildflowerSearch map]

[BONAP county map]

Occurring east of the Cascades crest in central Washington; central Washington, the mountains of northeast Oregon and adjacent Idaho, south to northeast California.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Review Group 1 in Washington (WANHP)

Sibling taxa

P. carthamoides, P. hirta, P. liatriformis, P. scaberula

P. carthamoides, P. liatriformis, P. scaberula

Subordinate taxa

P. hirta var. sonchifolia

Web links