A. Gray

in War Department [U.S.], Pacif. Railr. Rep. 4(5): 106, plate 15. 1857 ·.

Etymology: [[Etymology::Fremont’s-gold [Greek syn, united, trichos, hair, and pappos, pappus]]
Treatment appears in FNA Volume 21. Treatment on page 379. Mentioned on page 352, 353, 363, 364, 365.

Annuals, 1–10 cm. Stems decumbent or erect, branched from bases or throughout. Leaves mostly cauline; mostly alternate (proximal opposite); petiolate or sessile; blades either linear and margins entire, or narrowly cuneate to spatulate and margins usually distally 3-lobed, faces sparsely tomentose to moderately woolly or glabrescent. Heads radiate, borne singly or in loose, corymbiform arrays. Involucres subcylindric, 2–5+ mm diam. Phyllaries persistent, 5–8 in 1 series (spreading, not reflexed in fruit, distinct, oblanceolate, subequal, alternate ones scarious-margined, apices acute). Receptacles convex, ± knobby or smooth, epaleate. Ray florets 5–8, pistillate, fertile; corollas either yellow, or white or pinkish with reddish veins. Disc florets 10–20+, bisexual, fertile; corollas yellow, tubes shorter than narrowly funnelform throats, lobes 5, ovate-deltate (glabrous; anther appendages narrowly deltate, not glandular; style appendages narrowly triangular). Cypselae narrowly obconic, clavate, or fusiform, glabrous or sparsely to densely hispidulous; pappi 0, or ± fragile (falling in whole or fragmented rings), of 20–40 basally connate or coherent, ± barbellate bristles or subulate scales. x = 7.


w United States, nw Mexico.


Species 2 (2 in the flora).

B. G. Baldwin and B. L. Wessa (2000) found that Syntrichopappus lemmonii nests within a clade of Eriophyllum and Pseudobahia species; circumscriptions of these genera are likely to change.

Selected References



1 Ray laminae yellow Syntrichopappus fremontii
1 Ray laminae white or pinkish with reddish veins Syntrichopappus lemmonii
... more about "Syntrichopappus"
Dale E. Johnson +
A. Gray +
w United States +  and nw Mexico. +
in War Department [U.S.], Pacif. Railr. Rep. +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Syntrichopappus +
Asteraceae (tribe Heliantheae) subtribe Chaenactidinae +