|Scientific Name||Arnica rydbergii||USDA PLANTS Symbol||ARRY|
|Common Name||Subalpine Arnica||ITIS Taxonomic Serial No.||36575|
|Description||Life zones and habitat: Montane to alpine (10000 to 13500 ft.); meadows and rocky areas.
Plant: Erect perennial, somewhat tufted, 2 to 12 inches tall; sticky stems with short hairs.
Leaves: Stem leaves in 2 to 4 widely-spaced pairs, opposite, oblanceolate to lanceolate; petiolate below, sessile above, and may have denticulate margins; basal leaves oblanceolate to spatulate clustered and usually petiolate; surfaces slightly hairy below, moderately pubescent further up the stem.
Inflorescence: Flower heads, 1 to 3 per plant, with 6 to 10 yellow ray flowers, many yellow disk flowers; involucre with hairy, pointed phyllaries with dark reddish tips.
Bloom Period: July and August.
References: "The Alpine Flora of the Rocky Mountains" by Richard W. Scott, "Flora of Colorado" by Jennifer Ackerfield, SEINet, and SW Coloado Wildflowers.
|BONAP Distribution Map
Map Color Key
© Tom Lebsack 2022
Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County