Cladanthus

Cassini

Bull. Sci. Soc. Philom. Paris 1816: 199. 1816.

Etymology: Derivation not given possibly Greek klados, branch, and anthos, flower, alluding to branching of stems at bases of sessile heads in original species
Synonyms: Ormenis (Cassini) Cassini
Treatment appears in FNA Volume 19. Treatment on page 495. Mentioned on page 14, 487.
 TaxonIllustrator 
FNA19 P56 Tanacetum vulgare.jpegTanacetum vulgare
Achillea millefolium
Cladanthus mixtus
Yevonn Wilson-Ramsey
Linny Heagy
Yevonn Wilson-Ramsey

Annuals [perennials, subshrubs], 10–60+ cm (usually aromatic). Stems usually 1, usually erect [prostrate], branched [immediately proximal to sessile, terminal heads], puberulent or villous to arachnose (hairs basifixed), glabrescent. Leaves mostly cauline; alternate; petiolate (proximal) or sessile (distal); blades obovate or spatulate to oblong or linear, 1–2 (–3) -pinnately lobed (ultimate lobes ± linear to filiform), ultimate margins entire or dentate, faces villous to arachnose, glabrescent. Heads radiate, borne singly or in lax, corymbiform arrays. Involucres hemispheric or broader, 5–8 [–12+] mm diam. Phyllaries persistent, 16–24+ in 2–3+ series, lance-linear or lanceolate to oblong or obovate, subequal, margins and apices (hyaline) scarious (apices ± dilated, rounded, abaxial faces ± villous or arachnose, glabrescent). Receptacles hemispheric to narrowly columnar or conic, paleate; paleae ± folded (carinate, each with central, redbrown resin duct). Ray-florets 12–18+, neuter or styliferous and sterile; corollas orange, yellow, or white with yellow bases, laminae ± oblong (spreading to reflexed, ± marcescent). Disc-florets 40–150 [–200+], bisexual, fertile; corollas orange or yellow, tubes ± cylindric (bases saccate, each obliquely spurred, adaxially clasping distal 0.5+ of cypsela), throats campanulate to funnelform, lobes 5, deltate (apices minutely crested or dilated). Cypselae ± obovoid (apices oblique), weakly flattened (stylopodia sublateral), ribs or nerves (weak): 2 lateral, 1 adaxial, faces finely striate, glabrous [hairy] (pericarps with myxogenic cells in longitudinal rows, without resin sacs); pappi 0. x = 9.

Distribution

Introduced; s Europe, sw Asia, n Africa, also in South America, elsewhere in Old World

Discussion

Species ca. 5 (1 in the flora).

Lower Taxa

"broader" is not a number.

... more about "Cladanthus"
not tailed +  and obtuse +
scarious +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Linda E. Watson +
Cassini +
decurrent +
compound +  and simple +
lobed;spatulate;oblong or linear +
zygomorphic +, actinomorphic +  and (3-)5-merous +
yellow +, orange +  and white +
winged +  and monomorphic +
flattened +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
s Europe +, sw Asia +, n Africa +, also in South America +  and elsewhere in Old World +
Derivation not given +  and possibly Greek klados, branch, and anthos, flower, alluding to branching of stems at bases of sessile heads in original species +
glabrous +, glabrescent +, villous +  and arachnose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
in lax , corymbiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
hemispheric +
sessile +  and petiolate +
deltate +
entire +  and dentate +
adaxial +  and lateral +
2-carpellate +
persistent +
16 +  and 24 +
Bull. Sci. Soc. Philom. Paris +
styliferous +  and neuter +
bearing subulate enations +, hairy +  and bristly +
hemispheric;narrowly columnar or conic +
oberprieler2002b +
adaxial +  and lateral +
exalbuminous +
appendaged +  and truncate +
papillate +
Ormenis +
Cladanthus +
Asteraceae tribe Anthemideae +
campanulate +
cylindric +
10 cm100 mm <br />0.1 m <br /> (60 cm600 mm <br />0.6 m <br />) +
shrub +  and subshrub +