Chaetopappa asteroides

(Nuttall) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 301. 1836.

Common names: Tiny lazy daisy
Illustrated
Basionym: Chaetanthera asteroides Nuttall J. Acad. Nat. Sci. Philadelphia 7: 111. 1834
Treatment appears in FNA Volume 20. Treatment on page 208. Mentioned on page 207.

Annuals, 3.5–30 cm; taprooted, eglandular or glandular. Leaves not densely overlapping, proximal to mid cauline blades oblanceolate to linear-oblanceolate, 4–15 × 1–4 mm, herbaceous, not clasping, flat, faces strigose, often orangish gland-dotted. Involucres cylindro-turbinate, 2.5–4 × 2.5–5 mm. Ray-florets 5–18; corollas usually white, sometimes lavender-pink to deep lavender-rose. Disc-florets 6–25, bisexual or central florets often functionally staminate. Cypselae 5 (–6) -nerved, 1.6–2 mm, faces strigose; pappi in 2 series, outer of (4–) 5 (–6), scarious, irregular scales 0.1–1.4 mm plus inner of (4–) 5 (–6), tawny, awnlike, thick bristles 1.5–3 mm. 2n = 16.

Distribution

V20-462-distribution-map.gif

Ark., Kans., Mo., Okla., Tex., Mexico

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Ray florets 5–13; disc florets 6–15; pappus scales 0.1–0.8 mm Chaetopappa asteroides var. asteroides
1 Ray florets 10–18; disc florets 15–25; pappus scales 0.5–1.4 mm Chaetopappa asteroides var. grandis

"thick" is not a number.

... more about "Chaetopappa asteroides"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Guy L. Nesom +
(Nuttall) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
decurrent +
Chaetanthera asteroides +
linear;oblanceolate-obovate or spatulate +
rugulose +  and muricate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
oblanceolate +  and linear-oblanceolate +
Tiny lazy daisy +
not 2-lipped +  and actinomorphic +
lavender-pink +  and deep lavender-rose +
cuplike +
beaked +, 2-ribbed +  and 5-ribbed +
cylindric +  and narrowly obovoid terete +
fertile +  and bisexual +
fertile +  and bisexual +
Ark. +, Kans. +, Mo. +, Okla. +, Tex. +  and Mexico +
orangish gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
cylindro-turbinate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
petiolate +  and sessile +
overlapping +
cauline +  and basal +
deltate +
elliptic +  and linear-lanceolate +
2-carpellate +
persistent +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
white-hyaline +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
exalbuminous +
Illustrated +
decumbent +  and erect +
appendaged +  and truncate +
papillate +  and smooth +
Leucelene +
Chaetopappa asteroides +
Chaetopappa +
species +
tubular-funnelform +
glandular +, eglandular +  and taprooted +
3.5 cm35 mm <br />0.035 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tree +, shrub +  and subshrub +