Smithsonian Contr. Knowl. 5(6): 104, plate 14. 1853
Common names: Tack-stem
Etymology: Greek kalyx, cup, and seris, chicory, alluding to shallow cups on apices of cypselae
Treatment appears in FNA Volume 19. Treatment on page 307. Mentioned on page 216, 310, 360.
Annuals, 5–30 cm; taprooted. Stems 1–3, erect or ascending, branched from bases; distal stems, branches, and involucres conspicuously dotted with short, stipitate, flat-topped glands that resemble tacks. Leaves basal and cauline; alternate; sessile; basal blades pinnately lobed (lobes narrow, linear, often delicate, spreading, margins entire, smooth); distal reduced to linear, entire bracts. Heads borne singly or in open, cymiform arrays. Peduncles (1–3 cm) not inflated, not bracteate. Calyculi of 8–16, reflexed, unequal bractlets (lengths to 1/2 phyllaries). Involucres campanulate, 5–12+ mm diam. Phyllaries 12–20 in 1 series, linear-lanceolate, equal, margins scarious, apices acute. Receptacles flat, smooth, bristly, epaleate (each floret subtended by 1 fine, capillary bristle). Florets ca. 25; corollas white or yellow (showy). Cypselae tan to brown, fusiform, beaked, ribs 5, separated by longitudinal grooves, faces glabrous or scabridulous; pappi (borne on denticulate cups at beak tips) falling (together), of 50–60+, white, basally connate, smooth bristles 5–8(–9) mm in 1 series. x = 7.
sw United States, nw Mexico.
Species 2 (2 in the flora).
Facts about "Calycoseris"
|Author||L. D. Gottlieb +|
|Authority||A. Gray +|
|Common name||Tack-stem +|
|Distribution||sw United States + and nw Mexico. +|
|Etymology||Greek kalyx, cup, and seris, chicory, alluding to shallow cups on apices of cypselae +|
|Illustration copyright||Flora of North America Association +|
|Illustrator||Bee F. Gunn +|
|Publication title||Smithsonian Contr. Knowl. +|
|Publication year||1853 +|
|Source xml||https://email@example.com/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V19-20-21/V19 456.xml +|
|Synonyms||Undefined tribe Lactuceae +|
|Taxon family||Asteraceae +|
|Taxon name||Calycoseris +|
|Taxon parent||Asteraceae tribe Cichorieae +|
|Taxon rank||genus +|
|Volume||Volume 19 +|