Difference between revisions of "Eucephalus ledophyllus"
Pittonia 3: 55. 1896.
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|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Eucephalus | |genus=Eucephalus | ||
Revision as of 15:24, 18 September 2019
Perennials, 20–80 cm (caudices stout). Stems erect, pilose to stipitate-glandular. Leaves: mid and distal blades lance-elliptic to oblong, 2.5–7 cm × 5–20 mm, glabrous or sparsely pubescent abaxially, ± densely cottony and sometimes stipitate-glandular adaxially. Heads 3–20 in racemiform to corymbiform arrays. Peduncles pilose to stipitate-glandular. Involucres turbinate, 7–11 mm. Phyllaries in 3–5 series (usually reddish at margins and apices), lanceolate (strongly unequal), apices acute to acuminate, abaxial faces puberulent to stipitate-glandular. Rays 5–21, purple. Cypselae pilose; pappus bristles in 2 series, smooth or ± barbellate. 2n = 18.
Distribution
w United States.
Discussion
eucephalus ledophyllus may intergrade with e. engelmannii in the northern part of its range
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Peduncles glandular or not, at least ± woolly or cottony; rays usually 13 or 21 | Eucephalus ledophyllus var. ledophyllus |
| 1 | Peduncles glandular, not cottony; rays usually 5 or 8 | Eucephalus ledophyllus var. covillei |