Tetraneuris acaulis var. caespitosa
(Stemless Four-nerve Daisy)
Tetraneuris acaulis var. caespitosa, Hoosier Ridge, Summit Co. 1030
Tetraneuris acaulis var. caespitosa, Hoosier Ridge, Summit Co. 1009
Tetraneuris acaulis var. caespitosa, Hoosier Pass, Summit Co. 5476
Tetraneuris acaulis var. caespitosa, Hoosier Pass, Summit Co. 5482
Tetraneuris acaulis var. caespitosa, Hoosier Ridge, Summit Co. 1025
Tetraneuris acaulis var. caespitosa, Hoosier Ridge, Summit Co. 1027
Tetraneuris acaulis var. caespitosa, Hoosier Pass, Summit Co. 5480
| Scientific Name | Tetraneuris acaulis var. caespitosa (Hymenoxys acaulis) | USDA PLANTS Symbol | TEACC |
| Common Name | Stemless Four-nerve Daisy, Stemless Hymenoxys, Goldflower | ITIS Taxonomic Serial No. | 530625 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description |
Life zones and habitat: Subalpine and alpine (10000 to 14000 ft.); tundra, rocky, gravelly areas, alpine meadows above timberline. Plant: Very short perennial 1 to 3 inches tall; 1 to many unbranched, reddish-green, leafless stems (peduncles) with short hairs. Leaves: Thick, hairy, basal, spatulate or oblanceolate to linear-oblanceolate, may be dotted with glands; 1 to 2 inches long. Inflorescence: Composite flower heads less than 2 inches across borne singly atop peduncles; 8 to 15 yellow rays with three notches at tips; yellow centers with 25 to 200 disk florets; phyllaries usually densely hairy. Bloom Period: June to August. References: "Flora of Colorado" by Jennifer Ackerfield, Flora of North America, and American Southwest. Notes: The plants above appear to be var. caespitosa because of the county and altitude at which they are located (in Summit County at 12000 ft.) and the hairiness of the leaves. |
BONAP Distribution Map
Map Color Key |
Colorado Status: Native |
© Tom Lebsack 2024
Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains