Croptilon divaricatum

(Nuttall) Rafinesque

Fl. Tellur. 2: 47. 1837.

Common names: Slender scratchdaisy
IllustratedEndemic
Basionym: Inula divaricata Nuttall Gen. N. Amer. Pl. 2: 152. 1818
Treatment appears in FNA Volume 20. Treatment on page 229.

Stems erect, 20–100 cm. Cauline leaf-blades lanceolate to linear, reduced distally (becoming bractlike near heads), margins usually serrate apically, rarely entire. Peduncles usually glabrate, sometimes hispid, stipitate-glandular. Involucres turbinate, (2–) 2.5–5 mm diam. Ray-florets 5–11; corolla laminae 4–6 mm. Disc-florets (9–) 14–22 (–26). 2n = 8.


Phenology: Flowering (Jul–)Aug–Oct(–Nov).
Habitat: Sand, sandy loam, and sandy clay, oak and pine woods, usually in openings, roadsides, banks, fencerows
Elevation: 0–500 m

Distribution

V20-507-distribution-map.gif

Ala., Ark., Fla., Ga., La., Miss., N.C., Okla., S.C., Tex., Va.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Croptilon divaricatum"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +  and branched +
indeterminate +  and determinate +
Guy L. Nesom +
(Nuttall) Rafinesque +
decurrent +
Inula divaricata +
narrowly oblanceolate;lanceolate +
rugulose +  and muricate +
tawny +  and reddish-brown +
lanceolate;linear +
Slender scratchdaisy +
not 2-lipped +  and actinomorphic +
yellow +, bright-yellow +  and yellow-orange +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
terete +  and weakly angled +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, Okla. +, S.C. +, Tex. +  and Va. +
0–500 m +
strigose +  and sericeous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sand, sandy loam, and sandy clay, oak and pine woods, usually in openings, roadsides, banks, fencerows +
in loose , widely branched , paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cauline +  and basal +
erect;spreading +
triangular +
entire +  and serrate +
2-carpellate +
persistent +
stipitate-glandular +, hispid +  and glabrate +
Flowering (Jul–)Aug–Oct(–Nov). +
lanceolate +  and linear-lanceolate +
Fl. Tellur. +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
Illustrated +  and Endemic +
eglandular +  and branched +
20 cm200 mm <br />0.2 m <br /> (100 cm1,000 mm <br />1 m <br />) +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus sect. Isopappus +
Croptilon divaricatum +
Croptilon +
species +
perennial +  and annual +
20 cm200 mm <br />0.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
tree +, shrub +  and subshrub +
4 +, 5 +, 6 +  and 7 +