Arctotheca

J. C. Wendland

Bot. Beob., 41. 1798.

,

Hort. Herrenhus. 1: 8, plate 6. 1798.

Common names: Capeweed
Etymology: Greek arktos, brown bear, and theke, case, capsule, container, alluding to dense, woolly tomentum of cypselae of some species
Treatment appears in FNA Volume 19. Treatment on page 197. Mentioned on page 48, 195.
 TaxonIllustrator 
FNA19 P13 Gazania linearis.jpegGazania linearis
Arctotheca calendula
Arctotis stoechadifolia
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Perennials (sometimes flowering first-year), (4–) 8–20 (–30+) cm (usually stoloniferous and/or rhizomatous). Stems decumbent or creeping to ± erect. Leaves basal and cauline; petiolate; blades mostly obovate, margins usually pinnatifid to pinnatisect (often lyrate to runcinate) [entire], abaxial faces ± white-woolly, adaxial sparsely puberulent to arachnose (glabrate). Involucres hemispheric to campanulate, 10–15 [–20+] mm diam. Phyllaries in 3–6+ series, distinct, ovate or oblong to linear, unequal, margins ± scarious, apices ± acute to acuminate, abaxial faces glabrous or arachnose. Receptacles flat, alveolate or smooth, epaleate. Ray-florets neuter (staminodes sometimes present); corollas adaxially yellow (sometimes drying bluish) or ± bluish, laminae 4-veined, 3-toothed. Disc-florets bisexual, fertile; corollas yellow or purplish to brownish. Cypselae ± obovoid or ± prismatic (4-angled), ribs 3–5, faces usually villous or woolly [glabrate]; pappi usually present, persistent, of 7–9+ scales (borne within callous borders crowning cypselae) [sometimes none]. x = 9.

Distribution

Introduced; South Africa, Mozambique

Discussion

Species 4 (1 in the flora).

Selected References

None.

... more about "Arctotheca"
arachnose +, glabrous +  and white-woolly +
sparsely puberulent +  and arachnose +
obtuse +  and acute +
scarious +
less ovate +  and lanceolate +
indeterminate +  and determinate +
Alison McKenzie Mahoney +
J. C. Wendland +
decurrent +
compound +  and simple +
obovate +
Capeweed +
actinomorphic +
purplish +  and brownish +
prismatic +  and obovoid +
fertile +  and bisexual +
South Africa +  and Mozambique +
Greek arktos, brown bear, and theke, case, capsule, container, alluding to dense, woolly tomentum of cypselae of some species +
woolly +  and villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
hemispheric;campanulate +
3-toothed +
cauline +  and basal +
lanceolate +  and deltate +
entire +  and dentate +
usually pinnatifid +  and pinnatisect +
2-carpellate +
persistent +
coroniform +
Bot. Beob., +  and Hort. Herrenhus. +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
3 +  and 5 +
7 +  and 9 +
exalbuminous +
creeping to more or less erect +  and decumbent +
prostrate +  and ascending +
appendaged +  and truncate +
cylindric +  and dilated +
Compositae +
Arctotheca +
Asteraceae tribe Arctotideae +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
tree +, vine +, shrub +  and subshrub +