Blennosperma nanum

(Hooker) S. F. Blake

Proc. Biol. Soc. Wash. 39: 144. 1926.

IllustratedEndemic
Basionyms: Chrysanthemum nanum Hooker Fl. Bor.-Amer. 1: 320. 1833
Treatment appears in FNA Volume 20. Treatment on page 640.

Proximal leaves mostly 3–6+ cm, usually 5–15-lobed. Involucres 5–6+ mm. Ray-florets: corollas (sometimes 0) usually yellow, rarely white, often purplish abaxially, 3–7 mm; stigmas yellow. Disc-florets 20–100+. Cypselae 2.5–4.5 mm, sometimes epapillate. 2n = 14.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Disc florets mostly 12–60(–70+); cypselae mostly 2.5–3 mm Blennosperma nanum var. nanum
1 Disc florets mostly 60–100+; cypselae mostly3-4.5 mm Blennosperma nanum var. robustum
... more about "Blennosperma nanum"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
(Hooker) S. F. Blake +
decurrent +
Chrysanthemum nanum +
winged;nerved;ribbed +
barbellulate +  and smooth +
purplish +, white +  and yellow +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
epapillate +
angled +, 5-6(-10)-ribbed +  and ellipsoid +
fertile +  and bisexual +
floccose-tomentose +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
hemispheric +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
cauline +  and basal +
deltate +  and lanceolate +
dentate to pinnatifid +  and entire +
2-carpellate +
elliptic +  and ovate +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Proc. Biol. Soc. Wash. +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
foveolate +  and smooth +
flat;convex +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
papillate +
not divided +
Compositae +
Blennosperma nanum +
Blennosperma +
species +
campanulate +
shorter to longer +
12 cm120 mm <br />0.12 m <br /> (30 cm300 mm <br />0.3 m <br />) +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
vine +, tree +, shrub +  and subshrub +