Chaetopappa imberbis

(A. Gray) G. L. Nesom

Phytologia 64: 449. 1988.

Common names: Awnless lazy daisy
Endemic
Basionym: Chaetopappa asteroides var. imberbis A. Gray Proc. Amer. Acad. Arts 16: 82. 1880
Treatment appears in FNA Volume 20. Treatment on page 209. Mentioned on page 207.

Annuals, 4–15 cm, eglandular; taprooted. Leaves not densely overlapping, basal and proximal cauline blades oblanceolate-spatulate to oblanceolate-obovate, 8–26 × 1–5 mm, reduced in size distally, herbaceous, bases not clasping, flat, faces hispido-pilose. Involucres cylindro-turbinate, 3.5–4.5 × 2.5–5 mm. Ray-florets 8–19; corollas white. Disc-florets 11–18, bisexual. Cypselae 1.5–1.8 mm, 8-nerved, faces long-strigose in 8 lines; pappi white-hyaline, erose-margined, asymmetric, cuplike crowns 0.2–0.5 mm, in 1 series. 2n = 16.


Phenology: Flowering (Feb–)Mar–May(–Jun).
Habitat: Open areas in deep, loose sand, usually in oak woodlands
Elevation: 10–30 m

Discussion

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Chaetopappa imberbis"
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 +
(A. Gray) G. L. Nesom +
0.8 cm8 mm <br />0.008 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
decurrent +
Chaetopappa asteroides var. imberbis +
linear;oblanceolate-obovate or spatulate +
rugulose +  and muricate +
Awnless lazy daisy +
not 2-lipped +  and actinomorphic +
cuplike +
beaked +, 2-ribbed +  and 5-ribbed +
cylindric +  and narrowly obovoid terete +
fertile +  and bisexual +
10–30 m +
gland-dotted +
long-strigose +  and hispido-pilose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open areas in deep, loose sand, usually in oak woodlands +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 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 +
erose-margined +
white-hyaline +
persistent +
Flowering (Feb–)Mar–May(–Jun). +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
white-hyaline +
exalbuminous +
decumbent +  and erect +
appendaged +  and truncate +
papillate +  and smooth +
Leucelene +
Chaetopappa imberbis +
Chaetopappa +
species +
tubular-funnelform +
taprooted +  and eglandular +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
tree +, shrub +  and subshrub +