Croptilon hookerianum var. hookerianum

Treatment appears in FNA Volume 20. Treatment on page 230. Mentioned on page 229.

Stems and peduncles densely short-stipitate-glandular (longest hairs 0.2–0.3 mm, including glands), never hispid. Ray laminae 1.2–2.2 mm wide. 2n = 12 (14 in one population).


Phenology: Flowering Jul–Oct.
Habitat: Sand, sandy loam, silt, stream banks, fields, roadsides
Elevation: 20–200 m

Discussion

Selected References

None.

Lower Taxa

None.
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 +
(Torrey & A. Gray) House +
decurrent +
Isopappus hookerianus +
narrowly oblanceolate;lanceolate +
rugulose +  and muricate +
tawny +  and reddish-brown +
lanceolate;linear +
not 2-lipped +  and actinomorphic +
yellow +, bright-yellow +  and yellow-orange +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
terete +  and weakly angled +
fertile +  and bisexual +
fertile +  and bisexual +
20–200 m +
strigose +  and sericeous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sand, sandy loam, silt, stream banks, fields, roadsides +
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 />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
campanulate +
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 +
hispid +  and short-stipitate-glandular +
Flowering Jul–Oct. +
lanceolate +  and linear-lanceolate +
Bull. New York State Mus. Nat. Hist. +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
eglandular +  and branched +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
appendaged +  and truncate +
papillate +  and smooth +
Croptilon divaricatum var. hookerianum +  and Haplopappus validus subsp. torreyi +
Croptilon hookerianum var. hookerianum +
Croptilon hookerianum +
variety +
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 +