Pyrrocoma species

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Scientific Name Pyrrocoma clementis var. clementis USDA PLANTS Symbol PYCLC
Common Name Tranquil Goldenweed ITIS Taxonomic Serial No. 529941
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Montane to alpine (9200 to 13000 ft.); rocky hillsides, woodland openings and meadows.
Plant: Short perennial 8 to 12 inches tall, light green to reddish stems sparsely or densely covered with woolly hairs .
Leaves: Basal leaves narrowly lanceolate to oblanceolate, 2 to 5-1/2 inches long, fleshy, hairless, with entire, slightly undulate, sometimes denticulate, sparsely ciliate edges; stem leaves sessile, lanceolate to ovate, auriculate, 1-1/2 to 3 inches long, bases clasping, surfaces sparsely hairy and edges hairy.
Inflorescence: Solitary, composite flower heads 1 to 1-3/4 inches across with 20 to 55 yellow rays around the yellow center of 100+ disk florets; phyllaries are shaggy-hairy, narrowly obovate of different lengths, in several rows, colored green to purple.
Bloom Period: July and August.
References: "Flora of Colorado" by Jennifer Ackerfield, Flora of North America and www.americansouthwest.net
Note: All of the flower heads in the area of the images below exhibited an elliptical rather than circular center.
BONAP Distribution Map

Colorado Status:
Native
Scientific Name Pyrrocoma crocea var. crocea USDA PLANTS Symbol PYCRC
Common Name Curlyhead Goldenweed ITIS Taxonomic Serial No. 529943
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Montane to subalpine (7000 to 11800 ft.); meadows, roadsides, openings and woodlands.
Plant: Erect, stout perennial up to 32 inches tall, lower portions of multiple stems are green and reddish above.
Leaves: Basal leaves are large, oblanceolate or spatulate to narrowly elliptic with stalks; stem leaves much smaller, lanceolate and clasping; both with smooth surfaces and edges.
Inflorescence: Usually solitary, large flower heads over 2 inches across with many (30 to 90) narrow orange/yellow rays around the yellow center of 100+ disk florets; thick green oblong to spatulate phyllaries beneath.
Bloom Period: June to September.
References: "Flora of Colorado" by Jennifer Ackerfield, Flora of North America and www.americansouthwest.net
BONAP Distribution Map

Colorado Status:
Native

© Tom Lebsack 2020